WO2020063399A1 - 一种光诱导非金属催化活性羧酸酯脱羧偶联的方法 - Google Patents

一种光诱导非金属催化活性羧酸酯脱羧偶联的方法 Download PDF

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WO2020063399A1
WO2020063399A1 PCT/CN2019/106182 CN2019106182W WO2020063399A1 WO 2020063399 A1 WO2020063399 A1 WO 2020063399A1 CN 2019106182 W CN2019106182 W CN 2019106182W WO 2020063399 A1 WO2020063399 A1 WO 2020063399A1
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group
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compound
cdcl
nmr
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French (fr)
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傅尧
尚睿
付明臣
吴雅楠
王佳鑫
王雅婷
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中国科学技术大学
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Priority claimed from CN201811145402.5A external-priority patent/CN109134362B/zh
Priority claimed from CN201811145401.0A external-priority patent/CN109096150B/zh
Priority claimed from CN201811146021.9A external-priority patent/CN109180576B/zh
Application filed by 中国科学技术大学 filed Critical 中国科学技术大学
Publication of WO2020063399A1 publication Critical patent/WO2020063399A1/zh

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C269/00Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C269/06Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups by reactions not involving the formation of carbamate groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06Esters of carbamic acids
    • C07C271/08Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/10Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/18Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by doubly-bound oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/44Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom
    • C07D213/46Oxygen atoms
    • C07D213/50Ketonic radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/79Acids; Esters
    • C07D213/803Processes of preparation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/12Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D215/20Oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D215/48Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

Definitions

  • the present disclosure relates to the field of compound synthesis, and in particular, to a method for photo-induced non-metal catalytically active carboxylic acid esters and their decarboxylation to introduce nitrogen heterocycles or generate ⁇ -amino ketones.
  • Aromatic heterocyclic compounds are important structural units in the field of medicinal chemistry. Selective catalysis of aromatic heterocyclic functional groups is one of the important means to discover new drugs.
  • the main method to achieve the functionalization of aromatic heterocycles is the known Minisci reaction.
  • Minisci reaction the main method to achieve the functionalization of aromatic heterocycles.
  • these reported methods often require the addition of a precious metal iridium catalyst, and it is difficult to avoid the residue of precious metals in the later separation process.
  • ⁇ -amino ketones are widely used as intermediates in fine chemical and pharmaceutical fields. Its general synthesis methods include Mannich reaction using aldehydes, ketones and amines as raw materials, and ring-opening addition of cyclopropanol and sulfonyl azide compounds. In these existing reaction methods, noble metals need to be used, and it is agreed that it is difficult to avoid the problem of noble metal residues in the later separation process.
  • the present disclosure provides a photo-initiated non-metal catalytically active decarboxylation introduction of carboxylic esters.
  • the method of the present disclosure does not require the addition of a metal catalyst, and has mild reaction conditions and good compatibility with functional groups.
  • the product can also have a higher ee value and a high reaction conversion rate, which has a good prospect for synthetic value.
  • a method for photo-induced decarboxylative coupling of non-metal catalytically active carboxylic acid ester includes the following steps:
  • R is: C1-C30 alkyl group without functional group, C1-C30 alkyl group with functional group, C6-C30 aryl or heteroaryl group, C6-C30 aralkyl group, the functional group is selected from halogen, ester group At least one of an ether group, an acyl group, a carbonyl group, a sulfonyl group, a mercapto group, and an amino group, and at least one hydrogen atom of the C6-C30 aryl or heteroaryl group and the C6-C30 aralkyl group is optionally a hydroxyl group, a halogen , A mercapto group, an amine group, a carbonyl group, an ester group, or an ether group, and the hetero atom in the C6-C30 heteroaryl group is selected from at least one of nitrogen, oxygen, and sulfur.
  • R 1 is a tert-butoxycarbonyl group and a benzyloxycarbonyl group
  • R 2 is a hydrogen atom or a linear, branched or cyclic C 1-20 alkyl group
  • R 3 is a hydrogen atom, a C 6-20 aryl group, and Chain, branched or cyclic C 1-20 alkyl, C 1-20 sulfanyl, C 1-4 alkylphenoxy C 1-4 alkyl, or R 3 and R 2 to which they are attached N
  • the atoms together form a ring.
  • R ′ is a C 1-20 alkyl group, a C 6-30 aralkyl group, a C 6-30 aryl group or a heteroaryl group, or one of the hydrogen atoms is a hydroxyl group, a halogen group, a mercapto group, an amine group, C 1-20 alkyl substituted with carbonyl, ester or ether, wherein one hydrogen atom is substituted with C 6-30 aralkyl substituted with hydroxyl, halogen, mercapto, amine, carbonyl, ester or ether
  • reaction comprises: reacting an active carboxylic acid ester compound represented by Formula 1 with a compound represented by Formula 2-1 or Formula 2-2 by light irradiation A nitrogen heterocyclic compound represented by Formula 3-1 or a ⁇ -amino ketone represented by Formula 3-2:
  • Formula 2-1 represents an aromatic ring compound
  • the aromatic ring compound is a benzene ring or a thiophene ring compound optionally having a substituent group R 1 , wherein TMS represents a trimethylsilyl group
  • Formula 2-2 represents A nitrogen-containing heterocyclic compound
  • R 4 is a straight or branched C 1-20 alkyl, C 6-20 aryl or ester group at different substitution positions of the aromatic ring.
  • iodide salt is selected from at least one of sodium iodide, potassium iodide, and lithium iodide.
  • phosphine ligand is selected from the group consisting of triphenylphosphine, tris (4-methoxyphenyl) phosphine, and tris (4-fluorophenyl) phosphine , Tricyclohexylphosphine, 2-diphenylphosphine-biphenyl, 4,5-bisdiphenylphosphine-9,9-dimethylxanthene, and bis (2-diphenylphosphophenyl) ether At least one.
  • the organic solvent is selected from the group consisting of N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, tetrahydrofuran, trifluorotoluene, At least one of toluene, acetone, dichloromethane, and ethyl acetate.
  • BOC represents tert-butoxycarbonyl
  • t Bu represents tert-butyl
  • ph represents phenyl
  • Ac represents acetate
  • I represents iodine
  • Cbz represents benzyloxycarbonyl.
  • Ph phenyl
  • Br bromine
  • OEt ethoxy
  • Ph represents a phenyl group
  • NHAc represents an acetamide
  • Boc represents a tert-butoxycarbonyl group
  • I represents an iodo group
  • Naphthyl represents a naphthyl group.
  • the present disclosure provides a method for photo-inducing a non-metal catalytically active carboxylic acid ester to decarboxylate it into a nitrogen heterocyclic ring or obtain a ⁇ -amino ketone (the schematic diagram of the overall reaction is as follows).
  • the method includes the following steps:
  • the active carboxylic acid ester compound described in Formula 1 is reacted with a compound represented by Formula 2-1 or Formula 2-2 by light irradiation to obtain a compound having Formula 3 -1 or a compound represented by the formula 3-2.
  • the above formulas 2-1 and 2-2 may be collectively referred to as formula 2 and the above formulas 3-1 and 3-2 may be collectively referred to as formula 3.
  • active carboxylic acid ester refers to a carboxylic acid ester having a phthalic acid amide ester structure, and its chemical structural formula satisfies the above formula 1, wherein R is a C1-C30 alkyl group without a functional group, and C1 with a functional group -C30 alkyl, C6-C30 aryl or heteroaryl, C6-C30 aralkyl, the functional group is at least one selected from the group consisting of halogen, ester, ether, acyl, carbonyl, sulfonyl, mercapto, and amino At least one hydrogen atom in the C6-C30 aryl or heteroaryl group and the C6-C30 aralkyl group is optionally substituted with a hydroxyl group, a halogen group, a mercapto group, an amine group, a carbonyl group, an ester group, or an ether group, and The heteroatom in the C6-C30 heteroary
  • examples of R in the above formula 1 may include: for example, methyl, ethyl, propyl, t-butyl, octyl, decyl, dodecyl, eicosyl, octadecyl, Dodecyl, tridecyl; chloromethyl, chloroethyl, bromododecyl; phenyl, methylphenyl, naphthyl; thienyl, pyridyl, pyrrolyl, methylpyridyl ;
  • R 1 is tert-butoxycarbonyl and benzyloxycarbonyl
  • R 2 is a hydrogen atom or a linear, branched or cyclic C 1-20 alkyl group
  • R 3 is a hydrogen atom, C 6-20 aryl, linear, branched or cyclic C 1-20 alkyl, C 1-20 sulfanyl, C 1-4 alkylphenoxy C 1-4 alkyl, or R 3 and R 2 forms a ring with the N atom to which they are attached;
  • R ' is a C 1-20 alkyl group, a C 6-30 aralkyl group, a C 6-30 aryl group or a heteroaryl group, or at least one hydrogen atom of which is a hydroxyl group, a halogen group, a mercapto group, or an amino group , Carbonyl, ester, or ether-substituted C 1-20 alkyl groups, wherein at least one hydrogen atom is substituted with a hydroxyl, halogen, thiol, amine, carbonyl, ester, or ether group C 6-30 aralkyl group, wherein A C 6-30 aryl or heteroaryl group in which at least one hydrogen atom is substituted with a hydroxyl group, a halogen group, a mercapto group, an amine group, a carbonyl group, an ester group, or an ether group.
  • active carboxylic acid ester examples include:
  • the aromatic ring is a benzene ring substituted with R 1 or a thiophene ring
  • TMS represents a trimethylsilyl group
  • R 1 is a different substitution in the aromatic ring.
  • Formula 2-2 represents a nitrogen-containing heterocyclic compound, in which dotted lines represent different substituents.
  • Examples of the nitrogen-containing heterocyclic compound represented by Formula 2-2 include quinoline, isoquinoline, nicotinic acid, or phenanthridine which are substituted or unsubstituted with various substituents, and the various substituents may be C1- C30 alkyl, C6-C30 aryl, halogen, methyl ether or ester.
  • the C1-C30 alkyl group includes a linear or branched C1-C30 alkyl group, and specific examples thereof include, for example, methyl, ethyl, propyl, tert-butyl, and octyl. , Decyl, dodecyl, eicosyl, octadecyl, behenyl, tridecyl, and the like.
  • specific examples of the C6-C30 aryl group include, for example, phenyl, methylphenyl, naphthyl, and the like.
  • nitrogen-containing heterocyclic ring examples include:
  • non-metal in the term “photo-induced non-metal catalysis” means that no metal such as metal iridium is used in the catalytic system, and thus "photo-induced non-metal catalysis” means that no metal such as metal is used in the catalytic system Photo-induced catalysis occurs in the case of iridium.
  • the iodide salt may be selected from at least one of sodium iodide, potassium iodide, and lithium iodide, and is preferably sodium iodide.
  • the term "phosphine ligand" refers to a phosphine ligand commonly used in the art.
  • the phosphine ligand may preferably be selected from the group consisting of triphenylphosphine, tri (4-methoxyphenyl) phosphine, tri (4-fluorophenyl) phosphine, and tricyclohexylphosphine At least one of 2-diphenylphosphine-biphenyl, 4,5-bisdiphenylphosphine-9,9-dimethylxanthene, and bis (2-diphenylphosphophenyl) ether, Most preferred is triphenylphosphine.
  • organic solvent refers to a solvent that can function to dissolve the compounds represented by Formula 1 and Formula 2.
  • the organic solvent may be selected from at least one of N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, tetrahydrofuran, trifluorotoluene, toluene, acetone, dichloromethane, and ethyl acetate. Species.
  • a suitable light source has a wavelength range between 365 nm and 500 nm, preferably 400-480 nm, and more preferably 427-460 nm.
  • a method for decarboxylating a photocatalytically active carboxylic acid ester into a nitrogen heterocycle is provided.
  • the reaction process is shown in the schematic diagram above.
  • Formula 1 represents an active carboxylic acid ester
  • R in Formulas 1 and 3 is a linear or branched alkyl group which may be substituted or unsubstituted, or an aryl group which may be substituted or unsubstituted Group, and the carbon number of R is 1-30, preferably 1-20, more preferably 1-10, and examples of the substituent of R include a halogen atom (for example, fluorine, chlorine, bromine, iodine), an amino group, an ester Base, acyl, etc.
  • halogen atom for example, fluorine, chlorine, bromine, iodine
  • R is a C1-C30 non-functional alkyl group (for example, methyl, ethyl, propyl, t-butyl, octyl, decyl, dodecyl, eicosyl, octadecane Group, behenyl, tridecyl, etc.), C1-C30 functional group-containing alkyl groups (e.g., chloromethyl, chloroethyl, bromododecyl, etc.), C6- C30 aryl (eg, phenyl, methylphenyl, naphthyl, etc.) or C5-C30 heteroaryl (eg, thienyl, pyridyl, pyrrolyl, methylpyridyl, etc.).
  • C1-C30 non-functional alkyl group for example, methyl, ethyl, propyl, t-butyl, octyl, decyl, do
  • active carboxylic acid ester represented by Formula 1 include compounds having a chemical structure represented by Formula 1 in Table 1 in the Example section below.
  • Table 1 in the Example section below.
  • 1,3-dioxoisoindolin-2-ylcyclohexanecarboxylic acid ester 1,3-dioxoisoindolin-2-yl-2,3-dihydrobenzo [ b] [1,4] Dioxin-2-carboxylic acid ester, 1,3-dioxoisoindolin-2-yl-2- (3-chlorophenoxy) propionate, 1,3 -Dioxoisoindolin-2-yl-2-acetamino-3-phenylpropionate, 5- (tert-butyl) -1- (1,3-dioxoisoindolin-2 -Yl) ((benzyloxy) carbonyl) glutamic acid, and the like.
  • the compound of formula 1 suitable for use in the present disclosure is selected from at least one of the following compounds:
  • BOC represents tert-butoxycarbonyl
  • t Bu represents tert-butyl
  • ph represents phenyl
  • Ac represents acetate
  • I represents iodine
  • Cbz represents benzyloxycarbonyl.
  • Formula 2-2 represents a general formula of a nitrogen-containing heterocyclic ring, including quinoline, isoquinoline, nicotinic acid, or phenanthridine substituted or unsubstituted by various substituents, and the substituents are C1-C30 alkyl, C6-C30 Aryl, halogen (for example, fluorine, chlorine, bromine, iodine), methyl ether, or ester.
  • substituents are C1-C30 alkyl, C6-C30 Aryl, halogen (for example, fluorine, chlorine, bromine, iodine), methyl ether, or ester.
  • the above-mentioned C1-C30 alkyl group includes a linear or branched C1-C30 alkyl group, and specific examples thereof include, for example, methyl, ethyl, propyl, and tert-butyl , Octyl, decyl, dodecyl, eicosyl, octadecyl, behenyl, tridecyl, and the like.
  • C6-C30 aryl group examples include, for example, phenyl, methylphenyl, naphthyl, and the like.
  • nitrogen-containing heterocycles suitable for use in this embodiment of Formula 2-2 include: quinoline, isoquinoline, 4-methylquinoline, phenanthridine, and 4-ethoxyquinoline.
  • the compound represented by the formula 2-2 suitable for this embodiment is selected from at least one compound having the following structure:
  • the inventors have found that during the decarboxylation reaction of the active carboxylic acid ester, a reasonable molar ratio of Formula 2-2 to Formula 1, a molar ratio of Iodized salt to Formula 1, and a molar ratio of Phosphine ligand to Formula 1
  • the ratio, the type and amount of acid, and the type of light source are the most important process conditions for carrying out the reaction, specifically as follows:
  • the molar ratio of Formula 1 and Formula 2-2 is 1.0-3.0, and more preferably 1.1-2.0.
  • the iodide salt is selected from at least one of sodium iodide, potassium iodide, and lithium iodide, and more preferably sodium iodide; the molar amount of the iodide salt is the molar amount of the formula 2-2. 5% -50%, more preferably 5% -30%.
  • the phosphine ligand is selected from the group consisting of triphenylphosphine, tris (4-methoxyphenyl) phosphine, tris (4-fluorophenyl) phosphine, tricyclohexylphosphine, and 2-diphenyl Phosphine-biphenyl, 4,5-bisdiphenylphosphine-9,9-dimethylxanthene and bis (2-diphenylphosphophenyl) ether, more preferably triphenyl Phosphine.
  • the molar amount of the phosphine ligand is 5% -50%, more preferably 10-20%, of the molar amount of Formula 2.
  • the acid (also referred to as an additive) suitable for use in this embodiment is preferably one of trifluoroacetic acid and R-binaphthol phosphate, and when trifluoroacetic acid is used, its molar amount is the formula 2- The molar amount of 2 is 50% -150%, more preferably 100% -110%. When R-binaphthol phosphate is used, its molar amount is 5% -50%, more preferably 5% -20%, of the molar amount of Formula 2-2.
  • the wavelength range of the light source is preferably between 365 nm and 500 nm, and more preferably 427-456 nm.
  • the irradiation time is 4 hours to 24 hours, and more preferably 10-20 hours.
  • the organic solvent is selected from N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, tetrahydrofuran, trifluorotoluene, toluene, acetone, dichloromethane, and ethyl acetate. At least one of the esters is more preferably acetone.
  • a method for photo-induced non-metallic enantioselective catalysis of heterocyclic aromatic hydrocarbon minisci is provided as follows.
  • R ′ is a C 1-20 alkyl group having 1 to 20 carbon atoms, a C 6-30 aralkyl group having 6 to 30 carbon atoms, and a C 6- 30 aryl or heteroaryl
  • the C 1-20 alkyl, C 6-30 aralkyl, C 6-30 aryl or heteroaryl may be hydroxy, halogen, mercapto, amine, carbonyl, ester Group or ether group.
  • the C 1-20 alkyl group may be linear or branched.
  • the alkyl group in the C 6-30 aralkyl group may be linear or branched.
  • the active carboxylic acid ester represented by the formula 1 is preferably a compound represented by:
  • Ph represents a phenyl group
  • NHAc represents an acetamide
  • Boc represents a tert-butoxycarbonyl group
  • I represents an iodo group.
  • Formula 2-2 represents a nitrogen-containing heterocyclic compound, and preferably includes a quinoline-based compound and a pyridine-based compound.
  • the quinoline-based compound and the pyridine-based compound may have a substituent, and the substituent may be a C1-20 alkyl group, a phenyl group, an ether group, an ester group, and a combination of these groups.
  • Specific examples of the nitrogen-containing heterocyclic compound represented by Formula 2-2 include, for example, quinoline, methylquinoline, 4-methylquinoline, 4-phenylquinoline, pyridine, and the like.
  • the quinoline compounds and pyridine compounds represented by the formula 2-2 are preferably as follows:
  • Ph represents a phenyl group.
  • the inventors have found through a large number of experiments that during the decarboxylation reaction of the active carboxylic acid ester, a reasonable molar ratio of formula 1 to formula 2-2, a molar ratio of formula 2-2 to iodized salt and phosphine ligand, and chirality
  • the type of phosphonic acid and the type of light source are the most important process conditions for carrying out this reaction.
  • the molar ratio of Formula 1 and Formula 2-2 is 1.0-3.0, more preferably 1.5-2.5, and most preferably 1.5-2.
  • the chiral phosphonic acid is selected from at least one of PA1-PA14 shown in the figure below, and more preferably PA1, PA8, and PA13.
  • PA1-PA14 are the names of the chiral phosphonic acid compounds corresponding to the chemical structures shown below.
  • Ph represents a phenyl group
  • Naphthyl represents a naphthyl group
  • NHTf represents a trifluoromethanesulfonamide
  • the molar amount of the iodide salt is 5% -50%, more preferably 10% -30%, and most preferably 10-20% of the molar amount of the formula 2-2.
  • the molar amount of the phosphine ligand is 5% -50%, more preferably 10% -30%, and most preferably 10-20% of the molar amount of the formula 2-2.
  • the molar amount of the chiral phosphonic acid is 1% to 100%, and more preferably 5%, of the molar amount of the formula 2-2.
  • the wavelength range of the light source is between 365 nm and 500 nm, preferably 430-480 nm, and more preferably 450-460 nm.
  • the irradiation time is 4-24 hours, preferably 10-20 hours, and more preferably 15-18 hours.
  • the organic solvent is selected from 1,4-dioxane, N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, tetrahydrofuran, trifluorotoluene, toluene At least one of acetone, dichloromethane, and 1,4-dioxane is more preferable.
  • the yield of the target product can be as high as 96%, and the product ee value can also be as high as 96%.
  • a light-induced non-metal catalyzed method for preparing ⁇ -amino ketone is provided.
  • the schematic diagram of the chemical reaction is as follows:
  • the method of the present disclosure includes the following steps:
  • the decarboxylation of the active carboxylic acid ester compound represented by Formula 1 is achieved under the condition of room temperature in the presence of an iodized salt, a phosphine ligand, and an organic solvent, and the reaction is performed with the enol silyl ether compound represented by Formula 2-1.
  • a ⁇ -aminoketone compound represented by Formula 3 was obtained.
  • R 1 is tert-butoxycarbonyl Boc and benzyloxycarbonyl Cbz
  • R 2 is a hydrogen atom or a linear, branched or cyclic C 1-20 alkyl group
  • R 3 is a hydrogen atom
  • C 6- 20 aryl, linear, branched or cyclic C 1-20 alkyl, C 1-20 sulfanyl, C 1-4 alkylphenoxy C 1-4 alkyl, or R 3 and R 2 Forms a ring with the N atom to which they are attached.
  • examples of the linear, branched or cyclic C 1-20 alkyl group include methyl, ethyl, propyl, n-butyl, sec-butyl, tert-butyl, hexyl, heptyl , Octyl, cyclobutyl, cyclohexyl, dodecyl, octadecyl, behenyl, etc.
  • examples of the C 6-20 aryl group are phenyl, benzyl, phenethyl, and the like.
  • examples of the C 1-20 sulfanyl group include thiomethyl, thio-n-propyl, thio-n-butyl, thiohexyl, thiododecyl, and the like.
  • examples of the "C 1-4 alkylphenoxy C 4 alkyl” include methylphenoxy n-butyl, n-propylphenoxy t-butyl, and ethylpropoxy t- Butyl, etc.
  • examples of the "R 3 and R 2 forming a ring with the N atom to which they are attached” include cyclobutyl, cyclopropyl, cyclohexyl, and the like.
  • the aromatic ring is a benzene ring substituted with R 4 or a thiophene ring
  • TMS represents a trimethylsilyl group
  • R 4 is a straight chain or Branched C 1-20 alkyl, C 6-20 aryl or ester.
  • R 1 is as defined as defined in Formula 2
  • R 3 1 and R 1 and R 2 are the same as defined in the definition of R and R in Formula 4 4 2-1.
  • the inventors have found that during the decarboxylation reaction of the active carboxylic acid ester, a reasonable molar ratio of Formula 1 to Formula 2-1, a molar ratio of Formula 1 to an iodonium salt, a phosphine ligand, kind and so on are the most important process conditions for carrying out the reaction.
  • the molar ratio of Formula 2-1 and Formula 1 may be 1.0-4.0, and more preferably 1.5-2.0.
  • a suitable phosphine ligand is selected from the group consisting of triphenylphosphine, tris (4-fluorophenyl) phosphine, tris (4-methoxyphenyl) phosphine, tris (3-methoxyphenyl) phosphine At least one of diphenyl-2-pyridinephosphine, bis (2-diphenylphosphophenyl) ether, and more preferably triphenylphosphine.
  • the molar amount of the iodized salt suitable for use is 1.0-2.0 times, preferably 1.2-1.8 times, and more preferably 1.4-1.5 times the molar amount of Formula 1.
  • the molar amount of the phosphine ligand suitable for use is 5% -50%, preferably 10-30%, and more preferably 15-25% of the molar amount of Formula 1.
  • the molar amount of Formula 2-1 that is suitable for use is 1-4 times the molar amount of Formula 1, and more preferably 2-3 times.
  • a suitable light source has a wavelength range between 365 nm and 500 nm, preferably 430-480 nm, more preferably 450-460 nm; the irradiation time is 4-24 hours, 8-20 hours, and more preferably 12 -15 hours.
  • the organic solvent suitable for use is at least one selected from the group consisting of N, N-dimethylformamide, N, N-dimethylacetamide, acetonitrile, tetrahydrofuran, and toluene, and more preferably acetonitrile.
  • the yield of the ⁇ -aminoketone compound represented by Formula 3-1 can be as high as about 90%, and the minimum yield of the ⁇ -aminoketone compound can also be 62%.
  • the method provided by the present disclosure is to catalyze the photocatalyst to undergo an electronic transition by using light to catalyze the decarboxylation of an active carboxylic acid ester, and introduce a nitrogen heterocycle by a minisci reaction with a nitrogen-containing heterocyclic compound.
  • the hydrogen bonding between the carboxylic acid ester and the aromatic nitrogen heterocyclic ring realizes the conversion of the corresponding isomer.
  • this method uses metal iodide such as sodium iodide instead of organometallic catalyst, which greatly reduces the price of the catalyst, and there is no problem of residual precious metals in the post-treatment process, which is in line with the development of green environmentally friendly chemistry. Requirements, substrate range and functional group compatibility are good, and it has great prospects for synthetic value.
  • the present disclosure obtains ⁇ -amino ketone by using light to induce the decarboxylation of non-metal catalytically active carboxylic acid esters and react with the enol silyl ether compound.
  • the reaction conditions are mild, the operation is simple, and the use of a metal catalyst is avoided.
  • the synthesis of amino ketones provides a novel method that meets the requirements for the development of green environmentally friendly chemistry.
  • the method can be successfully applied to the synthesis of the precursors of the drug molecules duloxetine, fluoxetine hydrochloride and atomoxetine.
  • the conversion rate of the gram scale reaction is high, and it has the prospect of industrial synthesis value.
  • Acetonitrile (C 2 H 3 N, 99.9%), N, N-dimethylformamide (C 3 H 7 NO, 99.5%), N, N-dimethylacetamide (C 4 H 9 NO, 99.0% ), Acetone (C 3 H 6 O, 99.5%) were purchased from Blackwell, tetrahydrofuran (C 4 H 8 O, 99.5%), dichloromethane (CH 2 Cl 2 , 99.9%), ethyl acetate (C 4 H 8 O 2 , 99.8%), and trifluorotoluene (C 7 H 5 F 3 , 99%) were purchased from ANEG.
  • Sodium iodide (NaI, 99.5%) and potassium iodide were purchased from Aladdin Company, triphenylphosphine (PPh 3 , 99%) was purchased from Adamas Company, and tris (4-methoxyphenyl) phosphine (C 21 H 21 O 3 P, 95%), tris (4-fluorophenyl) phosphine (C 18 H 12 F 3 P, 98%), tricyclohexylphosphine (C 18 H 33 P, 96%), 2-diphenyl Phosphine-biphenyl (C 24 H 19 P, 98%), 4,5-bisdiphenylphosphine-9,9-dimethylxanthene (C 39 H 32 OP 2 , 98.0%), bis ( Both 2-diphenylphosphophenyl) ether (C 36 H 28 OP 2 , 98%) and (R) -binaphthol phosphate were purchased from Blackwell.
  • the concentrated residue was passed through a chromatographic column (Beijing Xinweier Glass Instrument Co., Ltd., C383040C, with sand plate storage ball chromatography column, 35/20, Effective length: 500ml) Chromatographic separation to obtain the product.
  • the product was a colorless liquid with a total of 42.8 mg and a yield of 95%.
  • Example 1-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 1-1.
  • the product was a viscous liquid with a total of 47.7 mg and a yield of 86%.
  • Example 1-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 1-1.
  • the product was a white solid with a total of 48.7 mg and a yield of 82%.
  • the preparation was performed in a manner similar to Example 1-1, except that NaI (10 mol%, 3 mg), PPh 3 (20 mol%, 10.5 mg), (R) -binaphthol phosphate were added to the reaction tube. Ester (10 mol%, 7.0 mg) and 1,3-dioxoisoindolin-2-yl-2-acetamino-3-phenylpropanoate (0.26 mmol, 91.5 mg); completely replaced with argon The air in the tube was three times, and then 2 mL of 1,4-dioxane and ethyl nicotinate (0.2 mmol, 30.3 mg) were added under an argon atmosphere; the reaction system was continuously stirred at room temperature for 20 hours under the illumination of a blue LED lamp.
  • Example 1-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 1-1.
  • the product was a white solid with a total of 50 mg and a yield of 80%.
  • the following implementation The molar percentages in the examples have the same meaning), 3 mg), PPh 3 (0.02 mmol (that is, 10 mol% of 4-methylquinoline), 5.3 mg), PA1 (0.01 mmol (that is, 4-methylquinoline 5 mol%) of phospholine), 7.5 mg), and 1,3-dioxoisoindololin-2-yl-2-acetamino-3-phenylpropanoate (0.3 mmol, 105.6 mg).
  • the air in the tube was completely replaced with argon for three times, and then 2 mL of 1,4-dioxane, 4-methylquinoline (0.2 mmol, 28.6 mg) was added under an argon atmosphere.
  • the reaction system was continuously stirred for 15 hours at room temperature under the irradiation of a 456 nm blue LED lamp (using an IKA magnetic stirrer, RCT basic type, with a stirring speed of 500 rpm). After the reaction was completed, the reaction was quenched with H 2 O, and the reaction solution was extracted with ethyl acetate (3 * 10 mL). The combined organic phases were then concentrated by rotary evaporation (Buchi Rotary Co., Ltd., Switzerland, R- 3).
  • the concentrated residue was passed through a chromatographic column (Beijing Xinweier Glass Instrument Co., Ltd., C383040C, with sand plate storage ball chromatography column, 35/20, Effective length: 500ml) Chromatographic separation to obtain the product.
  • a chromatographic column Beijing Xinweier Glass Instrument Co., Ltd., C383040C, with sand plate storage ball chromatography column, 35/20, Effective length: 500ml
  • the preparation was performed in a similar manner to Example 2-1, except that NaI (10 mol%, 3 mg), PPh 3 (10 mol%, 5.3 mg), PA13 (5 mol%, 7.2 mg) were added to the Schlenk reaction tube. ), And 1,3-dioxoisoindolin-2-yl-2-acetamino-3-phenylpropanoate (0.3 mmol, 105.6 mg); completely replace the air in the tube three times with argon, and then 2 mL of 1,4-dioxane, 4-methylquinoline (0.2 mmol, 28.6 mg) was added under an argon atmosphere; the reaction system was continuously stirred at room temperature for 20 hours under the irradiation of a 456 nm blue LED lamp.
  • Example 2-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 2-1.
  • the preparation was performed in a manner similar to Example 2-1, except that NaI (10 mol%, 3 mg), PPh 3 (10 mol%, 5.3 mg), PA8 (5 mol%, 7.2 mg) were added to the Schlenk reaction tube. ), And 1,3-dioxoisoindolin-2-yl-2-acetamino-3-phenylpropanoate (0.3 mmol, 105.6 mg); completely replace the air in the tube three times with argon, and then 2 mL of 1,4-dioxane, 4-methylquinoline (0.2 mmol, 28.6 mg) was added under an argon atmosphere; the reaction system was continuously stirred at room temperature for 20 hours under the irradiation of a 456 nm blue LED lamp.
  • Example 2-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 2-1.
  • the product was a white solid with a total of 56.5 mg and a yield of 93%.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-13 Preparation of (S) -6- (1-acetylamino-2-methylpropyl) nicotinic acid ethyl ester
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 The method is the same as in Example 2-1, and the yield is shown in Table 1.
  • Example 2-1 Prepared in a manner similar to Example 2-1, except that NaI (20mol%, 6mg), PPh 3 (20mol%, 10.5mg), PA1 (0.02mmol 15.0mg) were added to the Schlenk reaction tube, 2- Methyl 1,2-bis (pyridin-3-yl) propan-1-one (0.2 mmol, 45.2 mg) and 1,3-dioxoisoindolin-2-yl-2-acetamino-3- Methyl butyrate (0.3 mmol, 91.2 mg); completely replace the air in the tube three times with argon, then add 2 mL of 1,4-dioxane, 4-methylquinoline (0.2 mmol, 28.6) under argon atmosphere mg); The reaction system was continuously stirred for 20 hours at room temperature under the irradiation of a 456 nm blue LED lamp.
  • Example 2-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 2-1.
  • the product was a white solid with a total of 56.5 mg and a yield of 93%.
  • the concentrated residue was passed through a chromatographic column (Beijing Xinweier Glass Instrument Co., Ltd., C383040C, with sand plate storage ball chromatography column, 35/20, Effective length: 500m1)
  • the product is obtained by chromatography.
  • Example 3-2 Preparation of (1- (4- (tert-butoxy) phenyl) -4-oxo-4-phenylbutane-2-yl) carbamic acid tert-butyl ester
  • Example 3-1 After the reaction was completed, the product was obtained after treatment in the same manner as in Example 3-1.
  • Example 3-4 Preparation of (4-oxo-1,4-diphenylbut-2-yl) carbamic acid tert-butyl ester
  • Example 3-1 The method is the same as in Example 3-1.
  • the yield is shown in Table 1 and is 78%.
  • Porphyrin-2-yl 1-((tert-butoxycarbonyl) amino) cyclobutane carboxylate (0.2 mmol, 72.0 mg); completely replace the air in the tube three times with argon, then add 2 mL of N under argon atmosphere, N-dimethylacetamide, trimethyl ((1-phenylvinyl) oxy) silane (0.4 mmol, 76.8 mg); the reaction system was continuously stirred for 20 hours at room temperature under a light condition of a wavelength of 456 nm. After the reaction was completed, the product was obtained after treatment in the same manner as in Example 3-1. The product was a white solid, a total of 45.1 mg, with a yield of 78%.
  • Example 3-7 (3-([1,1'-Biphenyl] -4-yl) -3-oxopropyl) carbamic acid tert-butyl ester
  • Example 3-1 The method is the same as in Example 3-1.
  • the yield is shown in Table 1 and is 84%.
  • Example 3-8 Preparation of (3-oxo-3-phenylpropyl) carbamic acid tert-butyl ester
  • the air in the tube was completely replaced with argon for three times, and then 40 mL of acetonitrile and trimethyl ((1-phenylvinyl) oxy) silane (12 mmol, 2.31 g) were added under an argon atmosphere.
  • the reaction system was continuously stirred for 20 hours at room temperature under the illumination of a wavelength of 456 nm (using an IKA magnetic stirrer, RCT basic type, with a stirring speed of 500 rpm). After the reaction was completed, the reaction was quenched with H 2 0, and the reaction solution was extracted with ethyl acetate (3 * 30 mL), and then treated in the same manner as in Example 3-1 to obtain the product.
  • the method provided by the present disclosure utilizes photocatalysis to achieve efficient catalytic conversion at room temperature, with mild reaction conditions and simple operation. Compared with the traditional methods previously reported, this method avoids the use of precious metal catalysts, meets the requirements for the development of green environmentally friendly chemistry, has a wide range of substrates and good functional group compatibility, and the method can be successfully applied to scale-up scale experiments The reaction conversion rate is high, and it has a good industrial synthetic value prospect.

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Abstract

本公开提供的一种光诱导非金属催化活性羧酸酯脱羧偶联的方法,所述方法包括如下步骤:在碘盐、膦配体、溶剂以及任选的添加剂存在下,通过光照使式(1)所示的活性羧酸酯化合物发生反应,以使其脱羧引入氮杂环或产生β-氨基酮,其中R为:不含官能团的C1-C30烷基,含官能团的C1-C30烷基,C6-C30芳基或杂芳基、C6-C30芳烷基,所述官能团为选自卤素、酯基、醚基、酰基、羰基、磺酰基、巯基和氨基中的至少一种,所述C6-C30芳基或杂芳基和C6-C30芳烷基中的至少一个氢原子任选被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代,并且所述C6-C30杂芳基中的杂原子选自氮、氧和硫中的至少一种。

Description

一种光诱导非金属催化活性羧酸酯脱羧偶联的方法
本申请要求申请人在2018年9月26日提交的中国专利申请201811145401.0(发明名称:一种光诱导非金属催化制备β-氨基酮的方法)、201811146021.9(发明名称:一种光诱导非金属对映选择性催化杂环芳烃minisci反应的方法)和201811145402.5(发明名称:一种光诱导非金属催化活性羧酸酯脱羧引入氮杂环的方法)的优先权权益,并且这三个中国专利申请的全部内容都通过引用的方式并入本专利申请中。
技术领域
本公开涉及化合物合成领域,具体涉及一种光诱导非金属催化活性羧酸酯并使其脱羧引入氮杂环或产生β-氨基酮的方法。
背景技术
芳香杂环化合物是药物化学领域中及其重要的结构单元,通过选择性催化芳香杂环官能团化是发现新药的重要手段之一。实现芳香杂环的官能团化的主要方法是已知的Minisci反应,然而这些已经报道的方法中往往需要加入贵金属铱催化剂,在后期分离的过程中很难避免贵金属的残留。
β-氨基酮作为中间体广泛应用于精细化工和医药领域,它的一般的合成方法包括以醛、酮和胺为原料的Mannich反应、环丙醇和磺酰叠氮化合物的开环加成等。在这些现有的反应方法中,均需要使用贵金属,同意造成后期分离的过程中很难避免贵金属的残留的问题。
发明内容
为解决现有技术中贵金属催化剂比如铱的使用,不仅由于铱价格昂贵而导致生产成本增加而且容易残留在所得产品中的问题,本公开提供了一种光引发非金属催化活性羧酸酯脱羧引入氮杂环或产生β-氨基酮的方法。本公开的方法不需要加 入金属催化剂,且反应条件温和,对官能团兼容性好。而且,还可以使得产物具有较高的ee值,且反应转化率高,具有很好的合成价值前景。
为此,本公开提供了如下方面的发明:
<1>.一种光诱导非金属催化活性羧酸酯脱羧偶联的方法,所述方法包括如下步骤:
在碘盐、膦配体、溶剂以及任选的添加剂存在下,通过光照使下面的式1所示的活性羧酸酯化合物发生反应,以使其脱羧引入氮杂环或产生β-氨基酮,
Figure PCTCN2019106182-appb-000001
其中R为:不含官能团的C1-C30烷基,含官能团的C1-C30烷基,C6-C30芳基或杂芳基、C6-C30芳烷基,所述官能团为选自卤素、酯基、醚基、酰基、羰基、磺酰基、巯基和氨基中的至少一种,所述C6-C30芳基或杂芳基和C6-C30芳烷基中的至少一个氢原子任选被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代,并且所述C6-C30杂芳基中的杂原子选自氮、氧和硫中的至少一种。
<2>.根据<1>所述的方法,其中所述式1的化合物具有如下通式所示的结构:
Figure PCTCN2019106182-appb-000002
其中,R 1为叔丁氧羰基以及苄氧羰基,R 2为氢原子或直链、支链或环状的C 1-20烷基,R 3为氢原子,C 6-20芳基,直链、支链或环状的C 1-20烷基,C 1-20硫烷基,C 1-4烷基苯氧基C 1-4烷基,或者R 3和R 2与它们所连接N原子一起形成环。
<3>.根据在前任一项所述的方法,其中所述式1的化合物具有如下通式所示的结构:
Figure PCTCN2019106182-appb-000003
在上述式中,R’为C 1-20烷基、C 6-30芳烷基、C 6-30芳基或杂芳基,或者其中的一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 1-20烷基,其中的一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳烷基,或者其中的一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳基或杂芳基。
<4>.根据在前任一项所述的方法,其中所述反应包括:通过光照使式1所示的活性羧酸酯化合物与式2-1或式2-2所示的化合物反应而得到式3-1所示的氮杂环化合物或式3-2所示的β-氨基酮:
Figure PCTCN2019106182-appb-000004
其中,式2-1表示芳环化合物,并且所述芳环化合物是任选具有取代基团R 1的苯环或者噻吩环化合物,其中TMS表示三甲基硅烷基团,而式2-2表示含氮杂环化合物,R 4是在所述芳环的不同取代位置上的直链或支链的C 1-20烷基、C 6-20芳基或酯基。
<5>.根据在前任一项所述的方法,其中,所述碘盐选自碘化钠、碘化钾以及碘化锂中的至少一种。
<6>.根据在前任一项所述的方法,其中,所述的膦配体选自三苯基膦、三(4-甲氧基苯基)膦、三(4-氟苯基)膦、三环己基膦、2-二苯基膦-联苯、4,5-双二苯基膦-9,9-二甲基氧杂蒽以及双(2-二苯基磷苯基)醚中的至少一种。
<7>.根据在前任一项所述的方法,其中,所述添加剂选自三氟乙酸、(R)-联萘酚磷酸酯或手性膦酸。
<8>.根据在前任一项所述的方法,其中,所述光照使用波长范围在365nm到500nm之间的光源。
<9>.根据在前任一项所述的方法,其中,所述有机溶剂选自N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃、三氟甲苯、甲苯、丙酮、二氯甲烷和乙酸乙酯中的至少一种。
<10>.根据在前任一项所述的方法,其中,所述式1化合物选自如下结构的化合物:
Figure PCTCN2019106182-appb-000005
Figure PCTCN2019106182-appb-000006
Figure PCTCN2019106182-appb-000007
其中,BOC表示叔丁氧羰基, tBu表示叔丁基,ph表示苯基,Ac表示乙酸基,I表示碘、而Cbz表示苄氧羰基。
<11>.根据在前任一项所述的方法,其中,所述式2-1化合物选自如下结构的化合物:
Figure PCTCN2019106182-appb-000008
<12>.根据在前任一项所述的方法,其中,所述式2-2化合物选自以下结构的至少一种化合物:
Figure PCTCN2019106182-appb-000009
其中Ph表示苯基,Br表示溴,而OEt表示乙氧基。
<13>.根据在前任一项所述的方法,其中,所述手性膦酸选自由下面结构式所示PA1-PA14中的至少一种:
Figure PCTCN2019106182-appb-000010
上述式中,Ph表示苯基,NHAc表示乙酰胺,Boc表示叔丁氧羰基,I表示碘基,并且Naphthyl表示萘基。
<14>.根据在前任一项所述的方法,其中所述式2-1所示化合物与所述式1所示的摩尔比为1.0-4.0。
<15>.根据在前任一项所述的方法,其中所述式1所示的化合物与所述式2-2所示的化合物的摩尔比为1.0-3.0。
具体实施方式
在本公开中,除非另行定义,文中所使用的所有专业与科学用语与本领域熟练人员所熟悉的意义相同。此外,任何与所记载内容相似或均等的方法及材料皆可应用于本公开方法中。本公开所述的较佳实施方法与材料仅作示范之用。
本公开提供了一种光诱导非金属催化活性羧酸酯使其脱羧引入氮杂环或得到β-氨基酮的方法(其总反应的示意图如下),所述方法包括以下步骤:
Figure PCTCN2019106182-appb-000011
在碘盐、膦配体、溶剂以及任选的添加剂存在下,通过光照将式1所述的活性羧酸酯化合物与式2-1或式2-2表示的化合物反应,分别得到具有式3-1或式3-2所示结构的化合物。上述式2-1和式2-2可以统称为式2,并且上述式3-1和式3-2可以统称 为式3。
术语“活性羧酸酯”是指带有邻苯二甲酸酰胺酯结构的羧酸酯,其化学结构式满足上述式1所示,其中R为不含官能团的C1-C30烷基、含官能团的C1-C30烷基、C6-C30芳基或杂芳基、C6-C30芳烷基,所述官能团为选自卤素、酯基、醚基、酰基、羰基、磺酰基、巯基和氨基中的至少一种,所述C6-C30芳基或杂芳基和C6-C30芳烷基中的至少一个氢原子任选被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代,并且所述C6-C30杂芳基中的杂原子选自氮、氧和硫中的至少一种。
例如,在上述式1中的R的实例可以包括:例如,甲基、乙基、丙基、叔丁基、辛基、癸基、十二烷基、二十烷基、十八烷基、二十二烷基、三十烷基;氯甲基、氯乙基、溴代十二烷基;苯基、甲基苯基、萘基;噻吩基、吡啶基、吡咯基、甲基吡啶基;
-CHR 3NR 1R 2,其中R 1为叔丁氧羰基以及苄氧羰基,R 2为氢原子或直链、支链或环状的C 1-20烷基,R 3为氢原子,C 6-20芳基,直链、支链或环状的C 1-20烷基,C 1-20硫烷基,C 1-4烷基苯氧基C 1-4烷基,或者R 3和R 2与它们所连接N原子一起形成环;
-CR’NHAc,其中R’为C 1-20烷基、C 6-30芳烷基、C 6-30芳基或杂芳基,或者其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 1-20烷基,其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳烷基,其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳基或杂芳基。
在本公开中,活性羧酸酯的具体实例包括:
1,3-二氧代异吲哚啉-2-基环己烷羧酸酯、1,3-二氧代异吲哚啉-2-基-2,3-二氢苯并[b][1,4]二恶英-2-羧酸酯、1,3-二氧代异吲哚啉-2-基-2-(3-氯苯氧基)丙酸酯、1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯、5-(叔丁基)-1-(1,3-二氧代异吲哚啉-2-基)((苄氧基)羰基)谷氨酸;
以及如下化学结构式表示的活性羧酸酯:
Figure PCTCN2019106182-appb-000012
Figure PCTCN2019106182-appb-000013
在上述总的反应示意图的式2-1中,芳环是被R 1取代的苯环,或者是噻吩环,TMS表示三甲基硅烷基团,并且R 1是在所述芳环的不同取代位置上的直链或支链的C 1-20烷基、C 6-20芳基或酯基。
式2-2表示含氮杂环化合物,其中虚线表示不同的取代基。式2-2所表示的含氮杂环化合物的实例包括被各种取代基取代或不被取代的喹啉、异喹啉、烟酸或菲啶,并且所述各种取代基可以为C1-C30烷基、C6-C30芳基、卤素、甲基醚或酯基。本公开的含氮杂环化合物中,上述C1-C30烷基包括直链或支链的C1-C30烷基,其具体实例包括,例如,甲基、乙基、丙基、叔丁基、辛基、癸基、十二烷基、二十烷基、十八烷基、二十二烷基、三十烷基、等等。本公开的含氮杂环化合物中,上述C6-C30芳基的具体实例包括,例如,苯基、甲基苯基、萘基、等等。
在本公开中,所述含氮杂环的更具体实例包括:
Figure PCTCN2019106182-appb-000014
在本公开中,术语“光引发非金属催化”中的“非金属”是指催化体系中不使用金属比如金属铱,因而“光引发非金属催化”是指在催化体系中不使用金属比如金属铱的情况下发生的光引发催化作用。
在本公开中,所述碘盐可以选自碘化钠、碘化钾以及碘化锂中的至少一种,优选为碘化钠。
在本公开中,术语“膦配体”是指本领域中通常使用的膦配体。然而,从反应活性和产物的收率考虑,膦配体可以优选选自三苯基膦、三(4-甲氧基苯基)膦、三(4-氟苯基)膦、三环己基膦、2-二苯基膦-联苯、4,5-双二苯基膦-9,9-二甲基氧杂蒽以及双(2-二苯基磷苯基)醚中的至少一种,最优选为三苯基膦。
在本公开中,术语“有机溶剂”是指可以起到溶解式1和式2所示的化合物的溶剂。所述有机溶剂可以选自N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃、三氟甲苯、甲苯、丙酮、二氯甲烷和乙酸乙酯中的至少一种。
在本公开中,适合使用的光源的波长范围为365nm到500nm之间,优选为400-480nm,更优选为427-460nm。
下面,为了更好地说明本公开的光诱导非金属催化活性羧酸酯的方法,根据所得产物的不同而分成三个实施方案进行描述。
1).实施方案1
首先,在本公开的一个具体实施方案中,提供一种光催化活性羧酸酯脱羧引入氮杂环的方法,反应过程如上述示意图显示。
Figure PCTCN2019106182-appb-000015
式1表示活性羧酸酯,并且式1和式3中的R为可以被取代基取代或不被取代的直链或支链烷基,或者是可以被取代基取代或不被取代的芳基基团,且R的碳原子数为1-30,优选1-20,更优选1-10,并且R的取代基的实例包括卤素原子(例如,氟、氯、溴、碘)、氨基、酯基、酰基、等等。
具体地,R为C1-C30的不含官能团的烷基(例如,甲基、乙基、丙基、叔丁基、辛基、癸基、十二烷基、二十烷基、十八烷基、二十二烷基、三十烷基、等等)、C1-C30的含官能团的烷基(例如,氯甲基、氯乙基、溴代十二烷基、等等)、C6-C30芳基(例如,苯基、甲基苯基、萘基、等等)或C5-C30杂芳基(例如,噻吩基、吡啶基、吡咯基、甲基吡啶基、等等)。
式1所表示的活性羧酸酯的具体实例包括在下面实施例部分的表1中式1所示化学结构的化合物。例如,包括1,3-二氧代异吲哚啉-2-基环己烷羧酸酯、1,3-二氧代异吲哚啉-2-基-2,3-二氢苯并[b][1,4]二恶英-2-羧酸酯、1,3-二氧代异吲哚啉-2-基-2-(3-氯苯氧基)丙酸酯、1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯、5-(叔丁基)-1-(1,3-二氧代异吲哚啉-2-基)((苄氧基)羰基)谷氨酸、等等。
特别优选地,适用于本公开的所述式1化合物选自如下结构的化合物中的至少一种:
Figure PCTCN2019106182-appb-000016
其中,BOC表示叔丁氧羰基, tBu表示叔丁基,ph表示苯基,Ac表示乙酸基,I表示碘、而Cbz表示苄氧羰基。
式2-2表示含氮杂环通式,包括被各种取代基取代或不被取代的喹啉、异喹啉、烟酸或菲啶,其取代基为C1-C30烷基、C6-C30芳基、卤素(例如,氟、氯、溴、碘)、甲基醚或酯基。
在本实施方案的含氮杂环化合物中,上述C1-C30烷基包括直链或支链的C1-C30烷基,其具体实例包括,例如,甲基、乙基、丙基、叔丁基、辛基、癸基、十二烷基、二十烷基、十八烷基、二十二烷基、三十烷基、等等。
在本实施方案的含氮杂环化合物中,上述C6-C30芳基的具体实例包括,例如,苯基、甲基苯基、萘基、等等。
适用于本实施方案中的式2-2所示含氮杂环的具体实例包括:喹啉、异喹啉、4-甲基喹啉、菲啶、4-乙氧基喹啉。
特别优选地,适用于本实施方案的所述式2-2所示化合物选自如下结构的化合物中的至少一种:
Figure PCTCN2019106182-appb-000017
Figure PCTCN2019106182-appb-000018
其中ph表示苯基,Br表示溴,而OEt表示乙氧基。
本发明人发现,所述的活性羧酸酯脱羧反应转化当中,合理的式2-2与式1的摩尔用量比,碘盐与式1的摩尔用量比、膦配体与式1的摩尔用量比,酸的种类及用量,以及光源的种类等是进行该反应最为重要的工艺条件,具体地如下:
在本实施方案中,所述的式1和式2-2的摩尔比为1.0-3.0,更优选为1.1-2.0。
在本实施方案中,所述碘盐选自碘化钠、碘化钾以及碘化锂中的至少一种,更优选为碘化钠;碘盐的摩尔用量为所述式2-2的摩尔用量的5%-50%,更优选为5%-30%。
在本实施方案中,所述的膦配体选自三苯基膦、三(4-甲氧基苯基)膦、三(4-氟苯基)膦、三环己基膦、2-二苯基膦-联苯、4,5-双二苯基膦-9,9-二甲基氧杂蒽以及双(2-二苯基磷苯基)醚中的至少一种,更优选为三苯基膦。
膦配体的摩尔用量为所述式2的摩尔用量的5%-50%,更优选为10-20%。
适合本实施方案使用的酸(也可以称作添加剂)优选为三氟乙酸和R-联萘酚磷酸酯的一种,其中,且当采用三氟乙酸时,其摩尔用量为所述式2-2的摩尔用量的50%-150%,更优选为100%-110%。当采用R-联萘酚磷酸酯时,其摩尔用量为所述式2-2的摩尔用量的5%-50%,更优选为5%-20%。
在本实施方案中,所述光源的波长范围优选为365nm到500nm之间,更优选为427-456nm。照射时间为4小时至24小时,更优选为10-20小时。
在本实施方案中,所述有机溶剂选自N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃、三氟甲苯、甲苯、丙酮、二氯甲烷以及乙酸乙酯中的至少一种,更优选为丙酮。
2).实施方案2
在本公开的另一个具体实施方案中,提供如下一种光诱导非金属对映选择性催化杂环芳烃minisci反应的方法。
Figure PCTCN2019106182-appb-000019
在上述式中,R’为碳原子数为1-20的C 1-20烷基、碳原子数为6-30的C 6-30芳烷基、碳原子数为5-30的C 6-30芳基或杂芳基,并且所述C 1-20烷基、C 6-30芳烷基、C 6-30芳基或杂芳基可以被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代。所述C 1-20烷基可以是直链或支链。所述C 6-30芳烷基中的烷基可以是直链或支链。
所述式1表示的活性羧酸酯优选如下各项所示的化合物:
Figure PCTCN2019106182-appb-000020
上述式中,Ph表示苯基,NHAc表示乙酰胺,Boc表示叔丁氧羰基,I表示碘基。
式2-2表示含氮杂环化合物,优选包括喹啉类化合物和吡啶类化合物。所述喹啉类化合物和吡啶类化合物可以具有取代基,并且所述取代基可以为C1-20烷基、苯基、醚基、酯基以及上述这些基团的组合。式2-2所示含氮杂环化合物的具体实例包括例如,喹啉、甲基喹啉、4-甲基喹啉、4-苯基喹啉、吡啶、等等。所述式2-2表示的喹啉类化合物和吡啶类化合物优选为如下:
Figure PCTCN2019106182-appb-000021
上述式中,Ph表示苯基。
发明人经过大量的实验发现,所述的活性羧酸酯脱羧反应转化当中,合理的式1与式2-2的摩尔比,式2-2与碘盐、膦配体的摩尔比,手性膦酸的种类以及光源的种类等是进行该反应最为重要的工艺条件。
在本实施方案中,所述的式1和式2-2的摩尔比为1.0-3.0,更优选为1.5-2.5,最优选1.5-2。
在本实施方案中,所述手性膦酸选自下图所示的PA1-PA14中的至少一种,更优选为PA1、PA8和PA13。PA1-PA14分别是下面所示化学结构所对应的手性膦酸化合物的命名。
Figure PCTCN2019106182-appb-000022
上述式中,Ph表示苯基,Naphthyl表示萘基,NHTf表示三氟甲磺酰胺。
在本实施方案中,所述碘盐的摩尔用量为所述式2-2的摩尔用量的5%-50%,更优选为10%-30%,最优选10-20%。
在本实施方案中,所述膦配体的摩尔用量为所述式2-2的摩尔用量的5%-50%,更优选为10%-30%,最优选10-20%。
在本实施方案中,所述手性膦酸的摩尔用量为所述式2-2的摩尔用量的1%-100%,更优选为5%。
在本实施方案中,所述的光源的波长范围为365nm到500nm之间,优选为430-480nm,更优选为450-460nm。照射时间为4-24小时,优选为10-20小时,更优选为15-18小时。
在本实施方案中,所述有机溶剂选自1,4-二氧六环、N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃、三氟甲苯、甲苯、丙酮和二氯甲烷中的至少一种,更优选为1,4-二氧六环。
在本实施方案的制备方法中,目标产物的产率可以高达96%,产物 ee值也可以高达96%。
3)实施方案3
在本公开的再另一个具体实施方案中,提供一种光诱导非金属催化制备β-氨基酮的方法,其化学反应示意图如下:
Figure PCTCN2019106182-appb-000023
从上述示意图可以看出,本公开方法包括如下步骤:
在室温条件下,在碘盐、膦配体和有机溶剂存在的条件下,通过光照实现式1所示活性羧酸酯化合物的脱羧,并与式2-1所示的烯醇硅醚化合物反应得到式3所示的β-氨基酮类化合物。
并且,在上述示意图中,基团R 1、R 2、R 3和R 4具有如下含义。
在式1中,R 1为叔丁氧羰基Boc以及苄氧羰基Cbz,R 2为氢原子或直链、支链或环状的C 1-20烷基,R 3为氢原子,C 6-20芳基,直链、支链或环状的C 1-20烷基,C 1-20硫烷基,C 1-4烷基苯氧基C 1-4烷基,或者R 3和R 2与它们所连接N原子一起形成环。
在式1中,所述直链、支链或环状的C 1-20烷基的实例包括甲基、乙基、丙基、正丁基、仲丁基、叔丁基、己基、庚基、辛基、环丁基、环己基、十二烷基、十八烷基、二十二烷基、等等。
在式1中,所述C 6-20芳基的实例为苯基、苯甲基、苯乙基、等等。
在式1中,所述C 1-20硫烷基的实例包括硫基甲基、硫基正丙基、硫基正丁基、硫基己基、硫基十二烷基、等等。
在式1中,所述“C 1-4烷基苯氧基C 4烷基”的实例包括甲基苯氧基正丁基、正丙基苯氧基叔丁基、乙基丙氧基叔丁基、等等。
在式1中,所述“R 3和R 2与它们所连接N原子形成环”的实例包括环丁基、环丙基、环己基、等等。
在式2-1中,芳环是被R 4取代的苯环,或者是噻吩环,TMS表示三甲基硅烷基团,并且R 4是在所述芳环的不同取代位置上的直链或支链的C 1-20烷基、C 6-20芳基或酯基。
在式3-1中,R 1、R 2和R 3的定义与式1中R 1和R 2的定义相同,R 4的定义与式2-1中R 4的定义相同。
发明人发现,所述活性羧酸酯脱羧反应转化当中,合理的式1与式2-1的摩尔比,式1与碘盐、膦配体的摩尔比,碘盐和膦配体以及光源的种类等是进行该反应最为重要的工艺条件。
在本实施方案中,式2-1和式1的摩尔比可以为1.0-4.0,更优选为1.5-2.0。
在本实施方案中,适合使用的膦配体选自三苯基膦、三(4-氟苯基)膦、三(4-甲氧苯基)膦、三(3-甲氧苯基)膦、二苯基-2-吡啶膦、双(2-二苯基磷苯基)醚中的至少一种,更优选为三苯基膦。
在本实施方案中,适合使用的碘盐的摩尔用量为所述式1的摩尔用量的1.0-2.0倍,优选为1.2-1.8倍,更优选为1.4-1.5倍。
在本实施方案中,适合使用的膦配体的摩尔用量为所述式1的摩尔用量的5%-50%,优选为10-30%,更优选为15-25%。
在本实施方案中,适合使用的式2-1的摩尔用量为所述式1的摩尔用量的1-4倍,更优选为2-3倍。
在本实施方案中,适合使用的光源的波长范围为365nm到500nm之间,优选为430-480nm,更优选为450-460nm;照射时间为4-24小时,8-20小时,更优选为12-15小时。
在本实施方案中,适合使用的有机溶剂选自N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃和甲苯中的至少一种,更优选为乙腈。
在本实施方案的制备方法中,式3-1所示的β-氨基酮类化合物的产率可以高达约90%,并且β-氨基酮类化合物的最低产率也可以达到62%。
本公开提供的方法,是通过利用光照激发光催化剂发生电子跃迁,从而催化活性羧酸酯脱羧,并与含氮杂环化合物发生minisci反应引入氮杂环,而且进一步地,通过手性磷酸与活性羧酸酯和芳香氮杂环间的氢键作用,实现合成对应异构体的转化。与之前报道的方法相比,本方法使用金属碘化物比如碘化钠代替有机金属催化剂,大大降低了催化剂的价格,且后处理的过程中不存在贵金属的残留问题,符合发展绿色环境友好化学的要求,底物范围以及官能团兼容性良好,具有很大的合成价值前景。
另外,本公开通过利用光诱导非金属催化活性羧酸酯脱羧,并与烯醇硅醚化合 物发生反应得到β-氨基酮,反应条件温和、操作简单,且避免了金属催化剂的使用,为β-氨基酮的合成提供了一种新颖的方法,符合发展绿色环境友好化学的要求。而且,该方法可以成功应用于合成药物分子度洛西汀、盐酸氟西汀和阿托西汀的前体。克级规模反应的转化率高,具有工业合成价值前景。
实施例
为了进一步阐明本公开,下面结合实施例对本公开优选实施方案进行描述,但是应当理解,这些描述只是为了进一步说明本公开的特征和优点,而不是对本公开权利要求的限制,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本公开下述实施例中用于光催化活性羧酸酯脱羧引入氮杂环所使用到的药品分别在以下试剂公司购买:
乙腈(C 2H 3N,99.9%),N,N-二甲基甲酰胺(C 3H 7NO,99.5%),N,N-二甲基乙酰胺(C 4H 9NO,99.0%),丙酮(C 3H 6O,99.5%)均从百灵威公司购买,四氢呋喃(C 4H 8O,99.5%),二氯甲烷(CH 2Cl 2,99.9%),乙酸乙酯(C 4H 8O 2,99.8%),三氟甲苯(C 7H 5F 3,99%)从安耐吉公司购买。
碘化钠(NaI,99.5%)和碘化钾从阿拉丁公司购买,三苯基膦(PPh 3,99%)从阿达马斯公司购买,三(4-甲氧基苯基)膦(C 21H 21O 3P,95%),三(4-氟苯基)膦(C 18H 12F 3P,98%),三环己基膦(C 18H 33P,96%),2-二苯基膦-联苯(C 24H 19P,98%),4,5-双二苯基膦-9,9-二甲基氧杂蒽(C 39H 32OP 2,98.0%),双(2-二苯基磷苯基)醚(C 36H 28OP 2,98%)和(R)-联萘酚磷酸酯均从百灵威公司购买。
实施例1-1、制备2-环己基-4-甲基喹啉
反应式:
Figure PCTCN2019106182-appb-000024
(其中Cy表示环己基)
具体方法如下:
在10mL的Schlenk反应管(北京欣维尔玻璃仪器有限公司,F891410反应管,容量10mL,磨口14/20)中加入NaI(0.02mmol(即,为含氮杂环化合物1a 的10mol%。以下相同),3mg)、PPh 3(0.04mmol(即,为含氮杂环化合物1a的20mol%。以下相同),10.5mg)和1,3-二氧代异吲哚啉-2-基环己烷羧酸酯(2a,0.3mmol,81.9mg)。用氩气完全置换管内空气三次,然后在氩气氛围下加2mL丙酮、三氟乙酸(0.2mmol,22.8mg)、4-甲基喹啉(1a,0.2mmol,28.6mg)。该反应体系在蓝光LED灯照射下室温下连续搅拌15小时(使用IKA磁力搅拌器,RCT基本型,搅拌速度500转/分钟)。反应完毕后,用H 2O淬灭反应,并用乙酸乙酯(3*10mL)萃取反应液,再将合并的有机相用旋转蒸发的方式浓缩(瑞士步琦有限公司,BUCHI旋转蒸发仪R-3)。浓缩残渣通过色谱柱(北京欣维尔玻璃仪器有限公司,C383040C具砂板存储球层析柱,35/20,
Figure PCTCN2019106182-appb-000025
有效长:500ml)层析分离得到产物。产物为无色液体,共42.8毫克,产率95%,洗脱剂为乙酸乙酯:石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.4Hz,1H),7.94(d,J=8.3Hz,1H),7.66(ddd,J=8.3,6.9,1.3Hz,1H),7.53-7.46(m,1H),7.17(s,1H),2.88(tt,J=12.1,3.3Hz,1H),2.68(s,3H),2.01(dd,J=13.2,1.7Hz,2H),1.94-1.85(m,2H),1.83-1.76(m,1H),1.62(qd,J=12.4,2.9Hz,2H),1.54-1.41(m,2H),1.39-1.30(m,1H)。
13C NMR(101MHz,CDCl 3)δ166.5,147.5,144.4,129.4,129.0,127.0,125.4,123.6,120.2,47.6,32.8,26.56,26.1,18.9。
实施例1-2、制备4-甲基-2-(戊-2-基)喹啉
Figure PCTCN2019106182-appb-000026
以类似于实施例1-1的方式进行制备,不同的是:向所述反应管中加入NaI(10mol%,3mg)、PPh 3(20mol%,10.5mg)和1,3-二氧代异吲哚啉-2-基2-甲基戊酸酯(0.3mmol,78.3mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL乙腈、三氟乙酸(0.2mmol,22.8mg)、4-甲基喹啉(0.2mmol,28.6mg);该反应体系在蓝光LED灯照射下室温下连续搅拌17小时;反应完毕后,以实施例1-1的相同方式处理后得到产物,产物为无色液体,共37.5毫克,产率88%,洗脱剂为乙酸乙酯:石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.4Hz,1H),7.98-7.89(m,1H),7.70- 7.60(m,1H),7.53-7.43(m,1H),7.13(s,1H),3.19-2.97(m,1H),2.67(s,3H),1.91-1.74(m,1H),1.71-1.58(m,1H),1.44-1.31(m,4H),1.29-1.15(m,1H),0.89(t,J=7.3Hz,3H)。
13C NMR(101MHz,CDCl 3)δ166.9,147.6,144.2,129.5,128.9,127.0,125.4,123.6,120.2,42.7,39.3,20.9,20.7,18.8,14.2。
HRMS(ESI),C 15H 20N +[M+H] +的计算值:214.1590,测定值:214.1587。
实施例1-3、制备2-(2,3-二氢苯并[b][1,4]二氧杂环己烯-2-基)-4-甲基喹啉
Figure PCTCN2019106182-appb-000027
以类似于实施例1-1的方式进行制备,不同的是:向所述反应管中加入NaI(20mol%,6mg)、PPh 3(20mol%,10.5mg)和1,3-二氧代异吲哚啉-2-基2,3-二氢苯并[b][1,4]二恶英-2-羧酸酯(0.3mmol,97.5mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL N,N-二甲基乙酰胺、三氟乙酸(0.2mmol,22.8mg)、4-甲基喹啉(0.2mmol,28.6mg);该反应体系在蓝光LED灯照射下室温下连续搅拌17小时。反应完毕后,以实施例1-1的相同方式处理后得到产物。产物为粘稠液体,共47.7毫克,产率86%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.08(d,J=8.4Hz,1H),7.99(d,J=8.4Hz,1H),7.76-7.67(m,1H),7.60-7.54(m,1H),7.52(s,1H),7.11-7.04(m,1H),6.98-6.87(m,3H),5.42(dd,J=8.0,2.6Hz,1H),4.71(dd,J=11.4,2.6Hz,1H),4.48-4.06(m,1H),2.72(d,J=0.9Hz,3H)。
13C NMR(101MHz,CDCl 3)δ156.4,147.3,145.8,143.5,143.3,129.7,129.6,127.8,126.6,123.8,121.7,121.7,119.1,117.5,117.4,76.0,68.0,19.1。
HRMS(ESI),C 18H 16NO 2 +[M+H] +的计算值:278.1176,测定值:278.1176。
实施例1-4、制备2-(1-(3-氯苯氧基)乙基)-4-甲基喹啉
Figure PCTCN2019106182-appb-000028
以类似于实施例1-1的方式进行制备,不同的是:向所述反应管中加入KI(20mol%,6.7mg)、PPh 3(10mol%,5.3mg)和1,3-二氧代异吲哚啉-2-基-2-(3-氯苯氧基)丙酸酯(0.3mmol,104.5mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL三氟甲苯、三氟乙酸(0.2mmol,22.8mg)、4-甲基喹啉(0.2mmol,28.6mg);该反应体系在蓝光LED灯照射下室温下连续搅拌21小时。反应完毕后,以实施例1-1的相同方式处理后得到产物。产物为白色固体,共48.7毫克,产率82%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.11(d,J=8.4Hz,1H),7.95(d,J=8.3Hz,1H),7.78-7.63(m,1H),7.61-7.48(m,1H),7.39(s,1H),7.11-7.03(m,1H),6.98(t,J=2.1Hz,1H),6.89-6.76(m,2H),5.53(q,J=6.6Hz,1H),2.66(s,3H),1.73(d,J=6.6Hz,3H)。
13C NMR(101MHz,CDCl 3)δ162.0,158.6,146.9,146.2,134.8,130.2,129.6,129.2,127.7,126.4,123.8,121.1,118.0,116.5,113.6,77.8,22.7,19.1。
HRMS(ESI),C 18H 17ONCl +[M+H] +的计算值:298.0993,测定值:298.0987。
实施例1-5、制备2-(环己-3-烯-1-基)-4-甲基喹啉
Figure PCTCN2019106182-appb-000029
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.4Hz,1H),8.00-7.91(m,1H),7.72-7.62(m,1H),7.55-7.45(m,1H),7.17(s,1H),5.98-5.69(m,2H),3.21-3.09(m,1H),2.68(d,J=0.6Hz,3H),2.46-2.19(m,4H),2.11-2.03(m,1H),2.00-1.86(m,1H)。
13C NMR(101MHz,CDCl 3)δ165.9,147.5,144.5,129.5,129.1,127.0,126.9,126.4,125.5,123.6,120.4,43.1,31.4,28.6,25.7,18.9。
HRMS(ESI),C 16H 18N +[M+H] +的计算值:224.1434,测定值:224.1428。
实施例1-6、制备2-(叔丁基)-4-甲基喹啉
Figure PCTCN2019106182-appb-000030
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.4Hz,1H),7.92(dd,J=8.3,1.0Hz,1H),7.71-7.60(m,1H),7.55-7.42(m,1H),7.34(s,1H),2.67(s,3H),1.46(s,9H)。
13C NMR(101MHz,CDCl 3)δ168.9,147.2,143.7,129.9,128.8,126.6,125.5,123.4,118.9,37.9,30.2,19.0。
实施例1-7、制备2-(5-(2,5-二甲基苯氧基)-2-甲基戊-2-基)-4-甲基喹啉
Figure PCTCN2019106182-appb-000031
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.11(d,J=7.4Hz,1H),8.02-7.92(m,1H),7.76-7.64(m,1H),7.60-7.49(m,1H),7.37(s,1H),7.02(d,J=7.5Hz,1H),6.66(d,J=7.5Hz,1H),6.55(s,1H),3.88(t,J=6.4Hz,2H),2.70(d,J=0.7Hz,3H),2.29(s,3H),2.21(s,3H),2.10-2.00(m,2H),1.73-1.63(m,2H),1.53(s,6H)。
13C NMR(101MHz,CDCl 3)δ167.6,157.0,147.2,143.6,136.4,130.2,129.9,128.7,126.5,125.5,123.4,120.4,119.2,111.8,68.1,40.8,39.4,28.0,25.1,21.4,19.0,15.8。
HRMS(ESI),C 24H 30NO +[M+H] +的计算值:348.2322,测定值:348.2316。
实施例1-8、制备4-甲基-4-(4-甲基喹啉-2-基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019106182-appb-000032
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.03(d,J=8.3Hz,1H),7.94(d,J=8.3Hz,1H),7.73-7.61(m,1H),7.56-7.47(m,1H),7.27(s,1H),3.88-3.60(m,2H),3.37-3.09(m,2H),2.68(s,3H),2.60-2.38(m,2H),1.89-1.64(m,2H),1.45(s,9H),1.33(s,3H)。
13C NMR(101MHz,CDCl 3)δ165.9,155.1,147.4,144.2,129.9,128.9,126.6,125.8,123.5,119.1,79.1,39.8,36.2,29.0,28.5,19.1。
HRMS(ESI),C 21H 29N 2O 2 +[M+H] +的计算值:341.2224,测定值:341.2218。
实施例1-9、制备2-金刚烷基-4-甲基喹啉
Figure PCTCN2019106182-appb-000033
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.3Hz,1H),7.92(dd,J=8.3,0.9Hz,1H),7.71-7.58(m,1H),7.53-7.43(m,1H),7.32(s,1H),2.67(s,3H),2.21-2.07(m,9H),1.90-1.74(m,6H)。
13C NMR(101MHz,CDCl 3)δ168.7,147.6,143.6,123.0,128.7,126.7,125.4,123.4,118.5,41.8,39.6,36.9,28.9,19.0。
实施例1-10、制备(1-(5-甲基喹啉-2-基)-3-(甲硫基)丙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000034
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.05(d,J=8.3Hz,1H),7.95(dd,J=8.4,0.9Hz,1H),7.75-7.63(m,1H),7.60-7.46(m,1H),7.19(s,1H),6.20(d,J=7.3Hz,1H),5.01(dd,J=13.4,6.7Hz,1H),2.68(s,3H),2.60-2.50(m,1H),2.45-2.35(m,1H),2.33-2.19(m,1H),2.17-2.07(m,1H),2.07(s,3H),1.46(s,9H)。
13C NMR(101MHz,CDCl 3)δ159.6,155.6,147.2,145.1,129.6,129.3,127.4,126.1,123.7,120.7,79.3,54.7,36.1,30.1,28.4,18.8,15.5。
HRMS(ESI),C 19H 27N 2O 2S +[M+H] +的计算值:347.1788,测定值:347.1782。
实施例1-11、制备(2-(4-(叔丁氧基)苯基)-1-(4-甲基喹啉-2-基)乙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000035
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.05(d,J=7.5Hz,1H),7.93(d,J=8.1Hz,1H),7.69(t,J=7.6Hz,1H),7.53(t,J=7.5Hz,1H),6.92-6.77(m,4H),6.73(s,1H),6.20(br,1H),5.05(dd,J=13.5,7.4Hz,1H),3.40-2.96(m,2H),2.55(s,3H),1.45(s,9H),1.29(s,9H)。
13C NMR(101MHz,CDCl 3)δ159.4,155.3,153.7,147.2,144.0,132.5,130.0,129.6,129.1,127.3,126.0,124.0,123.7,121.4,79.2,78.2,57.1,42.3,28.8,28.5,18.7。
HRMS(ESI),C 27H 35N 2O 3 +[M+H] +的计算值:435.2642,测定值:435.2632。
实施例1-12、制备(1-(4-甲基喹啉-2-基)环丁基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000036
方法同实施例1-1,产率见表1。
1H NMR(400Mz,CDCl 3)δ8.09(d,J=8.4Hz,1H),8.02-7.90(m,1H),7.74-7.62(m,1H),7.57-7.45(m,2H),6.40(br,1H),3.14-2.54(m,7H),2.31-1.92(m,2H),1.47(s,9H)。
13C NMR(101MHz,CDCl 3)δ163.4,154.9,146.6,145.1,129.8,129.1,127.1,125.9,123.5,118.4,79.1,59.7,33.5,28.5,19.1,14.6。
HRMS(ESI),C 19H 25N 2O 2 +[M+H] +的计算值:313.1911,测定值:313.1905。
实施例1-13、制备2-(1-(4-甲基喹啉-2-基)-2-苯基乙基)异吲哚-1,3-二酮
Figure PCTCN2019106182-appb-000037
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.08(d,J=8.3Hz,1H),7.97-7.89(m,1H),7.78-7.73(m,2H),7.70-7.62(m,3H),7.55-7.48(m,1H),7.38-7.29(m,3H),7.23-7.16(m,2H),7.15-7.08(m,1H),5.96(dd,J=10.8,5.9Hz,1H),4.18-3.84(m,2H),2.65(d,J=0.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ168.4,157.7,147.3,145.2,138.1,133.9,131.8,130.1,129.3,129.1,128.5,127.4,126.6,126.4,123.6,123.3,119.8,57.6,36.2,19.0。
HRMS(ESI),C 26H 21N 2O 2 +[M+H] +的计算值:393.1598,测定值:393.1590。
实施例1-14、制备N-(1-(4-甲基喹啉-2-基)乙基)苯甲酰胺
Figure PCTCN2019106182-appb-000038
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.43(d,J=6.2Hz,1H),8.10(d,J=8.1Hz,1H),8.02-7.91(m,3H),7.75-7.68(m,1H),7.60-7.44(m,4H),7.23(s,1H),5.41(p,J=6.7Hz,1H),2.71(s,3H),1.67(d,J=6.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ166.6,160.5,146.8,145.5,134.9,131.4,129.5,128.5,127.5,127.1,126.2,123.8,120.3,50.3,22.7,18.9。
HRMS(ESI),C 19H 19N 2O +[M+H] +的计算值:291.1492,测定值:291.1485。
实施例1-15、制备(2-(4-碘苯基)-1-(4-甲基喹啉-2-基)乙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000039
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.05(d,J=8.3Hz,1H),7.95(dd,J=8.3,0.9Hz,1H),7.76-7.64(m,1H),7.54(ddd,J=8.2,6.9,1.2Hz,1H),7.48(d,J=8.0Hz,2H),6.87(s,1H),6.74(d,J=7.9Hz,2H),6.14(s,1H),5.06(dd,J=13.6,7.1Hz,1H),3.35-3.06(m,2H),2.61(s,3H),1.44(s,9H)。
13C NMR(101MHz,CDCl 3)δ158.9,155.3,147.2,144.7,137.2,137.1,131.8,129.6,129.4,127.4,126.2,123.8,121.2,91.8,79.4,56.6,42.0,28.4,18.7。
HRMS(ESI),C 23H 26N 2O 2I +[M+H] +的计算值:489.1033,测定值:489.1024。
实施例1-16、制备4-甲基-2-(1-苯基环丙基)喹啉酮
Figure PCTCN2019106182-appb-000040
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.02(d,J=7.9Hz,1H),7.87(dd,J=8.3,1.0Hz,1H),7.64(ddd,J=8.4,6.9,1.4Hz,1H),7.48-7.39(m,3H),7.37-7.32(m,2H),7.30-7.24(m,1H),6.94(d,J=0.9Hz,1H),2.52(s,3H),1.82(q,J=3.8Hz,2H),1.35(q,J=3.8Hz,2H)。
13C NMR(101MHz,CDCl 3)δ163.7,147.5,143.7,143.5,130.1,129.5,129.0,128.5,126.6,126.5,125.3,123.5,121.9,32.1,18.7,17.2。
HRMS(ESI),C 19H 18N +[M+H] +的计算值:260.1434,测定值:260.1429。
实施例1-17、制备(2-(叔丁氧基)-1-(4-甲基喹啉-2-基)乙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000041
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.3Hz,1H),7.96(d,J=8.3Hz,1H),7.67(t,J=7.2Hz,1H),7.52(t,J=7.3Hz,1H),7.31(s,1H),6.13(d,J=5.4Hz,1H),5.08-4.81(m,1H),3.92-3.79(m,1H),3.72-3.53(m,1H),2.69(s,3H),1.48(s,9H),1.07(s,9H)。
13C NMR(101MHz,CDCl 3)δ159.3,155.6,147.2,144.0,129.5,129.0,127.4,125.9,123.7,121.3,79.3,73.3,64.7,56.1,28.4,27.4,18.8。
HRMS(ESI),C 21H 31N 2O 3 +[M+H] +的计算值:359.2329,测定值:359.2322。
实施例1-18、制备4-(((苄氧基)羰基)氨基)-4-(4-甲基喹啉-2-基)丁酸叔丁酯
Figure PCTCN2019106182-appb-000042
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.03(d,J=8.3Hz,1H),7.99-7.90(m,1H),7.72-7.63(m,1H),7.60-7.49(m,1H),7.42-7.30(m,5H),7.19(s,1H),6.60(d,J=7.4Hz,1H),5.24-4.95(m,3H),2.61(d,J=54.4Hz,3H),2.45-2.26(m,2H),2.26-2.00(m,2H),1.39(s,9H)。
13C NMR(101MHz,CDCl 3)δ172.6,159.1,156.1,147.0,145.2,136.6,129.5,129.3,128.5,128.1,128.1,127.4,126.2,123.7,120.4,80.3,66.7,55.1,31.4,31.3,28.0,18.8。
HRMS(ESI),C 26H 31N 2O 4 +[M+H] +的计算值:435.2278,测定值:435.2271。
实施例1-19、制备(3-(甲硫基)-1-(4-苯基喹啉-2-基)丙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000043
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.14(d,J=8.0Hz,1H),7.90(d,J=8.3Hz,1H),7.72(t,J=7.5Hz,1H),7.56-7.45(m,6H),7.31(s,1H),6.21(d,J=5.0Hz,1H),5.24-4.92(m,1H),2.65-2.44(m,2H),2.37-2.12(m,2H),2.08(s,3H),1.47(s,9H)。
13C NMR(101MHz,CDCl 3)δ159.5,155.6,149.3,147.9,137.9,129.5,129.4,128.6,128.6,126.5,125.9,125.8,120.2,79.4,54.8,36.3,30.2,28.4,15.5。
HRMS(ESI),C 24H 29N 20 2S +[M+H] +的计算值:409.1944,测定值:409.1937。
实施例1-20、制备4-环己基-2-甲基喹啉
Figure PCTCN2019106182-appb-000044
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.14-7.92(m,2H),7.82-7.59(m,1H),7.56-7.45(m,1H),7.17(s,1H),3.41-3.16(m,1H),2.72(s,3H),2.10-1.80(m,5H),1.64-1.46(m,4H),1.45-1.27(m,1H)。
13C NMR(101MHz,CDCl 3)δ158.7,153.5,148.0,129.4,128.9,125.3,125.2,122.8, 118.3,38.8,33.6,26.9,26.3,25.4。
实施例1-21、制备1-环己基异喹啉
Figure PCTCN2019106182-appb-000045
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.48(d,J=5.7Hz,1H),8.23(d,J=8.4Hz,1H),7.81(d,J=8.0Hz,1H),7.65(ddd,J=8.1,6.9,1.2Hz,1H),7.58(ddd,J=8.2,6.9,1.3Hz,1H),7.48(d,J=5.7Hz,1H),3.57(tt,J=11.7,3.3Hz,1H),2.04-1.76(m,7H),1.62-1.47(m,2H),1.46-1.37(m,1H)。
13C NMR(101MHz,CDCl 3)δ165.7,141.8,136.4,129.6,127.6,126.8,126.3,124.8,118.9,41.5,32.6,26.9,26.2。
实施例1-22、制备7-溴-1-环己基异喹啉
Figure PCTCN2019106182-appb-000046
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.48(d,J=5.7Hz,1H),8.07(d,J=9.1Hz,1H),7.96(d,J=2.0Hz,1H),7.63(dd,J=9.0,2.0Hz,1H),7.37(d,J=5.7Hz,1H),3.59-3.42(m,1H),2.07-1.89(m,4H),1.89-1.71(m,3H),1.61-1.46(m,2H),1.44-1.33(m,1H)。
13C NMR(101MHz,CDCl 3)δ166.0,143.0,137.6,130.3,129.6,126.6,124.7,124.3,117.9,41.6,32.6,26.8,26.2。
HRMS(ESI),C 15H 17NBr +[M+H] +的计算值:290.0539,测定值:290.0534。
实施例1-23、制备5-溴-1-环己基异喹啉
Figure PCTCN2019106182-appb-000047
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.58(d,J=6.0Hz,1H),8.20(d,J=8.7Hz,1H),8.00-7.90(m,1H),7.91-7.81(m,1H),7.46-7.38(m,1H),3.68-3.39(m,1H),2.05-1.90(m,4H),1.89-1.74(m,3H),1.61-1.45(m,2H),1.45-1.35(m,1H)。
13C NMR(101MHz,CDCl 3)δ165.0,142.2,134.5,132.3,126.4,126.0,123.4,121.6,116.7,40.7,31.7,25.8,25.1。
HRMS(ESI)计算值for C 15H 17NBr +[M+H] +:290.0539。测定值:290.0534。
实施例1-24、制备6-环己基菲啶
Figure PCTCN2019106182-appb-000048
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.59(d,J=8.3Hz,1H),8.54-8.42(m,1H),8.28(d,J=8.3Hz,1H),8.14(d,J=8.0Hz,1H),7.84-7.72(m,1H),7.70-7.60(m,2H),7.60-7.51(m,1H),3.68-3.32(m,1H),2.18-1.71(m,7H),1.65-1.38(m,3H)。
13C NMR(101MHz,CDCl 3)δ164.2,142.8,132.0,128.9,127.3,126.0,125.1,124.6,123.7,122.3,121.5,120.8,40.9,31.2,25.8,25.3。
实施例1-25、制备2-(叔丁基)-4-乙氧基喹啉
Figure PCTCN2019106182-appb-000049
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.16(d,J=8.2Hz,1H),7.98(d,J=5.7Hz,1H),7.64(t,J=7.4Hz,1H),7.42(t,J=7.4Hz,1H),6.82(s,1H),4.27(q,J=6.9Hz,2H),1.57(t,J=6.9Hz,3H),1.46(s,9H)。
13C NMR(101MHz,CDCl 3)δ170.5,161.5,148.4,129.4,128.8,124.7,121.5,119.9,97.2,63.7,38.41,30.2,14.6。
HRMS(ESI),C 15H 20NO +[M+H] +的计算值:230.1539,测定值:230.1535。
实施例1-26、制备3-(6-甲氧基-2-甲基喹啉-4-基)吗啉-4-羧酸叔丁酯
Figure PCTCN2019106182-appb-000050
方法同实施例1-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ7.97(d,J=9.2Hz,1H),7.44(s,1H),7.35(dd,J=9.2,2.5Hz,1H),7.23(s,1H),5.02(dd,J=10.2,2.1Hz,1H),4.61-3.99(m,3H),3.96(s,3H),3.83(td,J=11.7,2.3Hz,1H),3.25-2.78(m,2H),2.71(s,3H),1.50(s,9H)。
13C NMR(101MHz,CDCl 3)δ157.3,156.3,154.5,143.8,142.9,134.1,130.9,124.3,123.4,121.2,119.0,101.3,80.4,74.5,67.1,55.6,28.4,25.1。
HRMS(ESI),C 20H 27N 2O 4 +[M+H] +的计算值:359.1965,测定值:359.1959。
实施例1-27、制备6-(1-乙酰氨基-2-苯乙基)乙酸乙酯
Figure PCTCN2019106182-appb-000051
以类似于实施例1-1的方式进行制备,不同的是:向所述反应管中加入NaI(10mol%,3mg)、PPh 3(20mol%,10.5mg)、(R)-联萘酚磷酸酯(10mol%,7.0mg)和1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯(0.26mmol,91.5mg);用氩气完全置换管内空气三次,然后在氩气氛围下加1,4-二氧六环2mL、烟酸乙酯(0.2mmol,30.3mg);该反应体系在蓝光LED灯照射下室温下连续搅拌20小时。反应完毕后,以实施例1-1的相同方式处理后得到产物。产物为白色固体,共50毫克,产率80%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ9.14(d,J=1.6Hz,1H),8.11(dd,J=8.1,2.1Hz,1H),7.23-7.15(m,3H),6.97-6.87(m,4H),5.35(td,J=8.2,5.6Hz,1H),4.40(q,J=7.1Hz,2H),3.27(dd,J=13.2,5.6Hz,1H),3.04(dd,J=13.2,8.4Hz,1H),2.03(s,3H),1.40(t,J=7.1Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.5,165.0,163.0,150.3,137.4,136.7,129.4,128.3,126.7,125.2,122.4,61.5,55.4,42.3,23.4,14.3。
HRMS(ESI),C 18H 21N 2O 3 +[M+H] +的计算值:313.1547,测定值:313.1555。
实施例1-28、克级反应:制备4-(((苄氧基)羰基)氨基)-4-(4-甲基喹啉-2-基)丁酸叔丁酯
Figure PCTCN2019106182-appb-000052
以类似于实施例1-1的方式进行制备,不同的是:向所述反应管中加入NaI(5mol%,60mg)、PPh 3(5mol%,105mg)和5-(叔丁基)-1-(1,3-二氧代异吲哚啉-2-基)(苄氧羰基)谷氨酸(8.8mmol,4.3g);用氩气完全置换管内空气三次,然后在氩气氛围下加40mL丙酮,三氟乙酸(8mmol,91.2mg),4-甲基喹啉(8mmol,1.15g);该反应体系在36W蓝光LED灯照射下室温下连续搅拌15小时。反应完毕后,用H 2O淬灭反应,并用乙酸乙酯(3*20mL)萃取反应液,再将合并的有机相用旋转蒸发的方式浓缩(瑞士步琦有限公司,BUCHI旋转蒸发仪R-3)。浓缩残渣通过色谱柱(北京欣维尔玻璃仪器有限公司,C383040C具砂板存储球层析柱,35/20,
Figure PCTCN2019106182-appb-000053
有效长:500ml)层析分离得到产物。产物为无色液体,共2.785克,产率80%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.03(d,J=8.3Hz,1H),7.99-7.90(m,1H),7.72-7.63(m,1H),7.60-7.49(m,1H),7.42-7.30(m,5H),7.19(s,1H),6.60(d,J=7.4Hz,1H),5.24-4.95(m,3H),2.61(d,J=54.4Hz,3H),2.45-2.26(m,2H),2.26-2.00(m,2H),1.39(s,9H)。
13C NMR(101MHz,CDCl 3)δ172.6,159.1,156.1,147.0,145.2,136.6,129.5,129.3,128.5,128.1,128.1,127.4,126.2,123.7,120.4,80.3,66.7,55.1,31.4,31.3,28.0,18.8。
HRMS(ESI),C 26H 31N 2O 4 +[M+H] +的计算值:435.2278,测定值:435.2271。
表1氮杂环芳烃(式1)和活性羧酸酯(式2)反应得到式3化合物
Figure PCTCN2019106182-appb-000054
Figure PCTCN2019106182-appb-000055
Figure PCTCN2019106182-appb-000056
以下实施例对应于实施方案2
实施例2-1:制备(S)-N-(1-(4-甲基喹啉-2-基)-2-苯乙基)乙酰胺
Figure PCTCN2019106182-appb-000057
在10mL的Schlenk反应管(北京欣维尔玻璃仪器有限公司,F891410反应管,容量10mL,磨口14/20)中加入NaI(0.02mmol(即,为4-甲基喹啉的10mol%。以下实施例中的摩尔百分比具有相同含义),3mg)、PPh 3(0.02mmol(即,为4-甲基喹啉的10mol%),5.3mg)、PA1(0.01mmol(即,为4-甲基喹啉的5mol%),7.5mg),和1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯(0.3mmol,105.6mg)。用氩气完全置换管内空气三次,然后在氩气氛围下加2mL 1,4-二氧六环,4-甲基喹啉(0.2mmol,28.6mg)。该反应体系在456nm的蓝光LED灯照射下室温下连续搅拌15小时(使用IKA磁力搅拌器,RCT基本型,搅拌速度500转/分钟)。反应完毕后,用H 2O淬灭反应,并用乙酸乙酯(3*10mL)萃取反应液,再将合并的有机相用旋转蒸发的方式浓缩(瑞士步琦有限公司,BUCHI旋转蒸发仪R-3)。浓缩残渣通过色谱柱(北京欣维尔玻璃仪器有限公司,C383040C具砂板存储球层析柱,35/20,
Figure PCTCN2019106182-appb-000058
有效长:500ml)层析分离得到产物。(产物为白色固体,共56.5毫克,产率93%,洗脱剂乙酸乙酯∶石油醚=1∶10~1∶5)
1H NMR(400MHz,CDCl 3)δ8.04(d,J=8.2Hz,1H),7.96(dd,J=8.3,0.6Hz,1H),7.73-7.67(m,1H),7.58-7.52(m,1H),7.28(br,1H),7.19-7.12(m,3H),6.98-6.92(m,2H),6.81(s,1H),5.39(td,J=7.7,5.4Hz,1H),3.34(dd,J=13.3,5.3Hz,1H),3.17(dd,J=13.3,7.9Hz,1H),2.58(s,3H),2.07(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.5,158.8,147.0,144.7,137.2,129.7,129.3,128.1,127.4,126.4,126.2,123.8,121.6,55.5,42.2,23.6,18.7。
高效液相色谱(HPLC)条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得95%ee,保留时间t r(minor)=8.24分钟,保留时间t r(major)=9.05分钟。
实施例2-2:制备(S)-N-(1-(4-甲基喹啉-2-基)-2-苯乙基)乙酰胺
Figure PCTCN2019106182-appb-000059
以类似于实施例2-1的方式进行制备,不同的是:向所述Schlenk反应管中加入NaI(10mol%,3mg)、PPh 3(10mol%,5.3mg)、PA13(5mol%,7.2mg),和1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯(0.3mmol,105.6mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL 1,4-二氧六环,4-甲基喹啉(0.2mmol,28.6mg);该反应体系在456nm的蓝光LED灯照射下室温下连续搅拌20小时。反应完毕后,以实施例2-1的相同方式处理后得到产物。产物为白色固体,共57.1毫克,产率94%,94%ee,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
实施例2-3:制备(R)-N-(1-(4-甲基喹啉-2-基)-2-苯乙基)乙酰胺
Figure PCTCN2019106182-appb-000060
以类似于实施例2-1的方式进行制备,不同的是:向所述Schlenk反应管中加入NaI(10mol%,3mg)、PPh 3(10mol%,5.3mg)、PA8(5mol%,7.2mg),和1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-苯基丙酸酯(0.3mmol,105.6mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL 1,4-二氧六环,4-甲基喹啉(0.2mmol,28.6mg);将该反应体系在456nm的蓝光LED灯照射下室温下连续搅拌20小时。反应完毕后,以实施例2-1的相同方式处理后得到产物。产物为白色固体,共56.5毫克,产率93%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得94%ee,保留时间t r(major)=8.24分钟,保留时间t r(minor)=9.05分钟。
实施例2-4:制备(S)-N-(1-(4-甲基喹啉-2-基)乙基)乙酰胺
Figure PCTCN2019106182-appb-000061
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.07(d,J=8.4Hz,1H),7.97(d,J=8.3Hz,1H),7.71(t,J=7.6Hz,1H),7.61-7.48(m,2H),7.16(s,1H),5.22(p,J=6.8Hz,1H),2.70(s,3H),2.10(s,3H),1.55(d,J=6.7Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.5,160.5,146.9,145.4,129.4,129.3,127.4,126.2, 123.8,120.3,50.0,23.6,22.7,18.8。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得91%ee,t r(minor)=6.59分钟,t r(major)=7.43分钟。
实施例2-5:制备(S)-N-(1-(4-甲基喹啉-2-基)戊基)乙酰胺
Figure PCTCN2019106182-appb-000062
方法同实施例2-4,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.07-8.04(m,1H),7.97(d,J=8.4Hz,1H),7.72-7.67(m,1H),7.57-7.51(m,1H),7.27(br,1H),7.16(s,1H),5.19(dd,J=14.1,6.4Hz,1H),2.69(s,3H),2.08(s,3H),2.02-1.95(m,1H),1.89-1.80(m,1H),1.31-1.20(m,4H),0.83(t,J=7.0Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.6,160.1,147.2,145.0,129.4,129.3,127.4,126.1,123.8,121.1,54.1,36.1,27.5,23.6,22.7,18.8,14.0。
高分辨质谱(电喷雾电离(HRMS(ESI))),C 17H 23N 20 +[M+H] +的计算值:271.1805,实测值:271.1810。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得87%ee,t r(minor)=5.92分钟,t r(major)=6.70分钟。
实施例2-6、制备(S)-N-(2-甲基-1-(4-甲基喹啉-2-基)丙基)乙酰胺
Figure PCTCN2019106182-appb-000063
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.09(d,J=8.4Hz,1H),7.99(d,J=8.3Hz,1H),7.71(t,J=7.6Hz,1H),7.56(t,J=7.6Hz,1H),7.24-7.10(m,2H),5.05(dd,J=8.5,6.6Hz,1H),2.71(s,3H),2.26(td,J=13.4,6.7Hz,1H),2.09(s,3H),0.95(d,J=6.8Hz,3H),0.88(d,J=6.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.8,159.5,146.8,145.1,129.5,129.1,127.4,126.2,123.8,122.1,59.0,34.2,23.6,19.5,18.9,18.5。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得94%ee,t r(minor)=13.02分钟,t r(major)=15.60分钟。
实施例2-7:制备(S)-N-(1-(4-甲基喹啉-2-基)-3-(甲硫基)丙基)乙酰胺
Figure PCTCN2019106182-appb-000064
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.12(d,J=8.4Hz,1H),8.00(dd,J=8.4,1.0Hz,1H),7.78-7.71(m,1H),7.61-7.56(m,1H),7.40(d,J=6.7Hz,1H),7.25(s,1H),5.38-5.32(m,1H),2.73(s,3H),2.57-2.49(m,1H),2.42-2.35(m,1H),2.34-2.27(m,1H),2.22-2.14(m,1H),2.10(s,3H),2.08(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.8,159.0,146.8,145.9,129.7,129.1,127.5,126.4,123.9,121.0,53.2,35.7,30.0,23.6,18.9,15.4。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得90%ee,t r(minor)=9.12分钟,t r(major)=10.39分钟。
实施例2-8:制备(S)-N-(2-(4-碘苯基)-1-(4-甲基喹啉-2-基)乙基)乙酰胺
Figure PCTCN2019106182-appb-000065
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.02(d,J=8.2Hz,1H),7.99-7.95(m,1H),7.74-7.68(m,1H),7.59-7.53(m,1H),7.46(d,J=8.4Hz,2H),7.23(d,J=7.1Hz,1H),3.29-3.13(m,2H),2.62(s,3H),2.07(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.6,158.3,146.5,145.7,137.2,136.8,131.7,129.8,129.0,127.4,126.5,123.9,121.4,91.9,55.1,41.4,23.5,18.8。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得96%ee,t r(major)=10.97分钟,t r(minor)=11.91分钟。
实施例2-9:制备(S)-(5-乙酰氨基-5-(4-甲基喹啉-2-基)戊基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000066
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.06(d,J=8.4Hz,1H),7.98(dd,J=8.4,1.0Hz,1H),7.71(ddd,J=8.4,6.9,1.4Hz,1H),7.55(ddd,J=8.2,6.9,1.3Hz,1H),7.24(d,J=7.0Hz,1H),7.16(s,1H),5.19(dd,J=13.5,6.7Hz,1H),4.54(s,1H),3.05(dd,J=12.7,6.4Hz,2H),2.09(s,3H),2.09(s,3H),2.05-1.95(m,1H),1.89-1.79(m,1H),1.53-1.42(m,2H),1.40(s,9H),1.37-1.24(m,2H)。
13C NMR(101MHz,CDCl 3)δ169.7,159.7,156.0,147.1,145.2,129.4,127.4,126.2,123.8,120.9,79.0,53.8,40.3,36.0,29.9,28.4,23.6,22.5,18.8。(一个碳信号出现重叠)。
HPLC条件:(AD-H,15%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得77%ee,t r(minor)=12.23分钟,t r(major)=14.40分钟。
实施例2-10:制备(S)-N-(2-苯基-1-(4-苯基喹啉-2-基)乙基)乙酰胺
Figure PCTCN2019106182-appb-000067
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.20(d,J=8.4Hz,1H),7.89(d,J=8.4Hz,1H),7.78-7.72(m,1H),7.55-7.45(m,5H),7.32-7.28(m,2H),7.21-7.16(m,3H),7.03-6.97(m,2H),6.84(s,1H),3.45(dd,J=13.1,5.5Hz,1H),3.14(dd,J=13.1,8.5Hz,1H),2.11(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.7,158.6,149.3,147.2,137.5,137.2,129.9,129.7,129.5,128.6,128.6,128.3,126.7,126.6,126.0,121.3,55.7,42.5,23.6.(两个碳原子信号重叠)。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得92%ee,t r(major)=8.54分钟,t r(minor)=9.62分钟。
实施例2-11:制备(S)-N-(2-苯基-1-(喹啉-2-基)乙基)乙酰胺
Figure PCTCN2019106182-appb-000068
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.04(d,J=8.5Hz,1H),7.98(d,J=8.4Hz,1H),7.78(d,J=8.1Hz,1H),7.74-7.68(m,1H),7.56-7.50(m,1H),7.28(s,1H),7.17-7.12(m,3H),6.97-6.92(m,3H),5.45(td,J=7.9,5.1Hz,1H),3.37(dd,J=13.2,5.1Hz,1H),3.15(dd,J=13.2,8.2Hz,1H),2.09(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.5,159.2,147.1,137.1,136.5,129.8,129.7,128.7,128.2,127.7,127.4,126.5,126.5,120.9,55.7,42.4,23.6。
HPLC条件:(AD-H,10%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得93%ee,t r(minor)=10.28分钟,t r(major)=14.70分钟。
实施例2-12:制备(S)-N-(1-(6-甲氧基吡啶-2-基)-2-苯乙基)乙酰胺
Figure PCTCN2019106182-appb-000069
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ7.93(d,J=9.2Hz,1H),7.86(d,J=8.4Hz,1H),7.36(dd,J=9.2,2.8Hz,1H),7.26-7.21(m,1H),7.16-7.12(m,3H),7.04(d,J=2.8Hz,1H),6.97-6.87(m,3H),5.41(td,J=7.9,5.1Hz,1H),3.92(s,3H),3.35(dd,J=13.2,5.1Hz,1H),3.13(dd,J=13.2,8.2Hz,1H),2.07(s,3H)。
13C NMR(101MHz,CDCl 3)δ169.5,157.7,156.6,143.4,137.2,135.1,130.2,129.7,128.4,128.1,126.4,122.4,121.1,105.2,55.6,55.5,42.4,23.6。
HPLC条件:(AD-H,15%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得87%ee,t r(minor)=8.89分钟,t r(major)=12.00分钟。
实施例2-13:制备(S)-6-(1-乙酰氨基-2-甲基丙基)烟酸乙酯
Figure PCTCN2019106182-appb-000070
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ9.17(d,J=1.9Hz,1H),8.31(dd,J=8.1,2.1Hz,1H),7.35(d,J=8.1Hz,1H),6.88(d,J=8.8Hz,1H),4.96(dd,J=8.7,7.3Hz,1H),4.42(q,J=7.1Hz,2H),2.17(dd,J=13.8,6.9Hz,1H),2.05(s,3H),1.41(t,J=7.1Hz,3H),0.96(d,J=6.8Hz,3H),0.80(d,J=6.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.8,165.0,163.6,150.2,137.5,125.1,122.8,61.5,59.0,33.8,23.4,19.2,18.6,14.3。
HRMS(ESI),C 14H 20N 2NaO 3 +[M+Na] +的计算值:287.1366,实测值:214.1380。
HPLC条件:(IC,30%异丙醇的己烷溶液。1mL/min,25℃,254nm)测得92%ee,t r(minor)=9.01分钟,t r(major)=11.60分钟。
实施例2-14:制备(S)-6-(1-乙酰氨基-2-甲基丙基)-2-甲基烟酸乙酯
Figure PCTCN2019106182-appb-000071
方法同实施例2-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.15(d,J=8.0Hz,1H),7.10(d,J=8.0Hz,1H),6.84(d,J=7.4Hz,1H),4.89(dd,J=8.8,7.1Hz,1H),4.38(q,J=7.1Hz,2H),2.83(s,3H),2.12(dd,J=13.6,6.8Hz,1H),1.40(t,J=7.1Hz,3H),0.93(d,J=6.8Hz,3H),0.79(d,J=6.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ169.6,166.4,161.5,159.5,138.8,124.3,120.3,61.3,58.8,33.9,24.8,23.6,19.1,18.6,14.3。
HRMS(ESI),C 15H 22N 2NaO 3 +[M+Na] +的计算值:301.1523,实测值:301.1533。
HPLC条件:(IC,30%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得96%ee,t r(minor)=10.24分钟,t r(major)=14.29分钟。
实施例2-15:制备(S)-N-(2-甲基-1-(5-(2-甲基-2-(吡啶-3-基)丙酰基)吡啶-2-基)丙基)乙酰胺
Figure PCTCN2019106182-appb-000072
以类似于实施例2-1的方式进行制备,不同的是:Schlenk反应管中加入NaI(20mol%,6mg)、PPh 3(20mol%,10.5mg)、PA1(0.02mmol 15.0mg),2-甲基1,2-二(吡啶-3-基)丙-1-酮(0.2mmol,45.2mg)和1,3-二氧代异吲哚啉-2-基-2-乙酰氨基-3-甲基丁酸酯(0.3mmol,91.2mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL 1,4-二氧六环,4-甲基喹啉(0.2mmol,28.6mg);将该反应体系在456nm的蓝光LED灯照射下室温下连续搅拌20小时。反应完毕后,以实施例2-1的相同方式处理后得到产物。产物为白色固体,共56.5毫克,产率93%,洗脱剂乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ8.65-8.55(m,3H),7.74(dd,J=8.2,2.3Hz,1H),7.65-7.61(m,1H),7.37-7.32(m,1H),7.12(d,J=8.1Hz,1H),6.58(d,J=8.8Hz,1H),4.85(dd,J=8.8,7.0Hz,1H),2.07-2.02(m,1H),2.00(s,3H),1.67(s,6H),0.88(d,J=6.8Hz,3H),0.75(d,J=6.8Hz,3H)。
13C NMR(101MHz,CDCl 3)δ200.7,169.6,162.7,150.4,148.4,147.2,140.1,137.4,133.8,129.7,124.1,122.6,58.9,50.3,33.7,27.4,27.3,23.5,19.2,18.5。
HPLC条件:(IC,40%异丙醇的己烷溶液,1mL/min,25℃,254nm)测得84%ee,t r(major)=13.98分钟,t r(minor)=18.74分钟。
表2光诱导非金属对映选择性催化杂环芳烃minisci反应
Figure PCTCN2019106182-appb-000073
Figure PCTCN2019106182-appb-000074
Figure PCTCN2019106182-appb-000075
以下实施例对应于实施方案3
实施例3-1、制备(4-氧代-4-苯基丁-2-基)氨基甲酸苄酯
Figure PCTCN2019106182-appb-000076
在10mL的Schlenk反应管(北京欣维尔玻璃仪器有限公司,F891410反应管,容量10mL,磨口14/20)中加入碘化钠(0.3mmol,45.0mg)、三苯基膦(0.04mmol(即,为活性羧酸酯化合物的20mol%。以下相同含义),10.5mg)和苄氧羰基Cbz-保护的丙氨酸活性羧酸酯(0.2mmol,73.6mg)。用氩气完全置换管内空气三次,然后在氩气氛围下加2mL乙腈,三甲基((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg)。该反应体系在456nm波长的光照条件下室温下连续搅拌15小时(使用IKA磁力搅拌器,RCT基本型,搅拌速度500转/分钟)。反应完毕后,用H 2O淬灭反应,并用乙酸乙酯(3*10mL)萃取反应液,再将合并的有机相用旋转蒸发的方式浓缩(瑞士步琦有限公司,BUCHI旋转蒸发仪R-3)。浓缩残渣通过色谱柱(北京欣维尔玻璃仪器有限公司,C383040C具砂板存储球层析柱,35/20,
Figure PCTCN2019106182-appb-000077
有效长:500m1)层析分离得到产物。(产物为白色固体,共60.3毫克,产率76%,洗脱剂乙酸乙酯∶石油醚=1∶10~1∶5)。
1H NMR(400MHz,CDCl 3)δ7.95(d,J=7.1Hz,2H),7.64-7.54(m,1H),7.51-7.41(m,2H),7.40-7.27(m,5H),5.34(s,1H),5.18-5.00(m,2H),4.31-4.20(m,1H),3.47-2.96(m,2H),1.30(d,J=6.7Hz,3H)。
13C NMR(101MHz,CDCl 3)δ198.7,155.6,136.9,136.5,133.3,128.7,128.5,128.1,128.1,128.0,66.6,44.3,44.1,20.4。
实施例3-2:制备(1-(4-(叔丁氧基)苯基)-4-氧代-4-苯基丁烷-2-基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000078
以类似于实施例3-1的方式进行制备,不同的是:向所述Schlenk反应管中加入碘化钠(0.4mmol,60.0mg)、三苯基膦(0.04mmol,10.5mg)和1,3-二氧代异吲哚啉-2-基3-(4-(叔丁氧基)苯基)-2-((叔丁氧基羰基)氨基)丙酸酯(0.2mmol,96.4mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL乙腈,三甲基 ((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg);将该反应体系在456nm波长的光照条件下室温下连续搅拌18小时。反应完毕后,以实施例3-1的相同方式处理后得到产物。产物为白色固体,共61.8毫克,产率75%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.85(d,J=7.8Hz,2H),7.59-7.50(m,1H),7.48-7.38(m,2H),7.06(d,J=8.0Hz,2H),6.88(d,J=8.0Hz,2H),5.26(br,1H),4.35-4.14(m,1H),3.24-2.80(m,4H),1.38(s,9H),1.31(s,9H)。
13C NMR(101MHz,CDCl 3)δ199.4,155.3,153.9,136.9,133.3,129.7,128.6,128.1,124.2,79.2,78.3,49.3,40.9,39.4,28.8,28.4。
HRMS(ESI),对C 25H 34O 4N+[M+H]+的计算值∶412.2482,测定值:412.2486。
实施例3-3:制备2-(2-氧代-2-苯乙基)吡咯烷-1-羧酸叔丁酯
Figure PCTCN2019106182-appb-000079
以类似于实施例3-1的方式进行制备,不同的是:向所述Schlenk反应管中加入碘化钾(0.3mmol,49.8mg)、三苯基膦(0.04mmol,10.5mg)和2-(1,3-二氧代异吲哚啉-2-基)吡咯烷-1,2-二羧酸1-叔丁酯(0.2mmol,72.0mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL乙腈,三甲基((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg);将该反应体系在456nm波长的光照条件下室温下连续搅拌20小时。反应完毕后,以实施例3-1的相同方式处理后得到产物。产物为白色固体,共44.5毫克,产率77%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.99(d,J=7.4Hz,2H),7.59-7.50(m,1H),7.49-7.40(m,2H),4.31(t,J=8.6Hz,1H),3.85-3.21(m,3H),2.92-2.74(m,1H),2.13-1.98(m,1H),1.92-1.69(m,3H),1.44(s,9H)。
13C NMR(101MHz,CDCl 3)δ199.0,154.4,136.9,133.1,128.6,128.3,79.5,54.3,46.5,43.4,29.7,28.6,23.3。
实施例3-4:制备(4-氧代-1,4-二苯基丁-2-基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000080
以类似于实施例3-1的方式进行制备,不同的是:向所述Schlenk反应管中加入碘化钠(0.3mmol,45.0mg)、三(4-氟苯基)膦(0.04mmol,12.6mg)和1,3-二氧代异吲哚啉-2-基2-((叔丁氧基羰基)氨基)-3-苯基丙酸酯(0.2mmol,82.0mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL乙腈,三甲基((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg);将该反应体系在456nm波长的光照条件下室温下连续搅拌20小时。反应完毕后,以实施例3-1的相同方式处理后得到产物。产物为油状液体,共47.5毫克,产率70%,洗脱为剂乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.94-7.81(m,2H),7.64-7.52(m,1H),7.50-7.38(m,2H),7.34-7.12(m,5H),5.26(br,1H),4.55-4.07(m,1H),3.35-2.81(m,4H),1.39(s,9H)。
13C NMR(101MHz,CDCl 3)δ199.3,155.3,138.3,137.0,133.3,129.4,128.7,128.5,128.1,126.5,79.3,49.3,40.94,4.12,28.4。
HRMS(ESI),C 21H 260 3N+[M+H]+的计算值:340.1907,测定值:340.1912。
实施例3-5:制备(5-(甲硫基)-1-氧代-1-苯基戊烷-3-基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000081
以类似于实施例3-1的方式进行制备,不同的是:向所述Schlenk反应管中加入碘化钠(0.3mmol,45.0mg)、三(4-氟苯基)膦(0.04mmol,12.6mg)和1,3-二氧代异吲哚啉-2-基2-((叔丁氧基羰基)氨基)-4-(甲硫基)丁酸酯(0.2mmol,78.9mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL N,N-二甲基甲酰胺,三甲基((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg);将该反应体系在456nm波长的光照条件下室温下连续搅拌20小时。反应完毕后,以实施例3-1的相同方式处理后得到产物。产物为油状液体,共50.4毫克,产率78%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.98-7.90(m,2H),7.62-7.53(m,1H),7.50-7.43(m,2H),5.18(br,1H),4.20-4.11(m,1H),3.43-2.98(m,2H),2.81-2.39(m,2H),2.08 (s,3H),2.01-1.80(m,2H),1.41(s,9H).
13C NMR(101MHz,CDCl 3)δ198.9,155.4,136.8,133.4,128.7,128.1,79.3,47.2,42.47,33.6,31.0,28.4,15.5。
HRMS(ESI),C 17H 26O 3NS+[M+H]+的计算值∶324.1628,测定值:324.1632。
实施例3-6:制备(1-(2-氧代-2-苯基乙基)环丁基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000082
方法同实施例3-1,产率见表1,为78%。
不同的是:向所述Schlenk反应管中加入碘化钠(0.3mmol,45.0mg)、三(4-氟苯基)膦(0.04mmol,12.6mg)和1,3-二氧代异吲哚啉-2-基1-((叔丁氧基羰基)氨基)环丁烷羧酸酯(0.2mmol,72.0mg);用氩气完全置换管内空气三次,然后在氩气氛围下加2mL N,N-二甲基乙酰胺,三甲基((1-苯基乙烯基)氧基)硅烷(0.4mmol,76.8mg);将该反应体系在456nm波长的光照条件下室温下连续搅拌20小时。反应完毕后,以实施例3-1的相同方式处理后得到产物。产物为白色固体,共45.1毫克,产率78%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.97(d,J=7.7Hz,2H),7.56(t,J=7.3Hz,1H),7.46(t,J=7.6Hz,2H),5.22(br,1H),3.56(s,2H),2.42-2.18(m,4H),2.09-1.92(m,1H),1.92-1.78(m,1H),1.38(s,9H).
13C NMR(101MHz,CDCl 3)δ199.23,154.47,137.46,133.14,128.58,128.07,79.04,54.72,44.46,33.43,28.38,15.48。
HRMS(ESI),C 17H 24O 3N+[M+H]+的计算值:290.1751,测定值:290.1755。
实施例3-7:(3-([1,1′-联苯]-4-基)-3-氧代丙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000083
方法同实施例3-1,产率见表1,为84%。
1H NMR(400MHz,CDCl 3)δ8.03(d,J=8.5Hz,2H),7.69(d,J=8.5Hz,2H),7.66-7.60(m,2H),7.52-7.45(m,2H),7.44-7.37(m,1H),5.19(br,1H),3.57(dd,J=11.4, 5.7Hz,2H),3.24(t,J=5.6Hz,2H),1.44(s,9H).
13C NMR(101MHz,CDCl 3)δ199.0,156.0,146.1,139.7,135.3,129.0,128.6,128.3,127.3,127.3,79.3,38.7,35.5,28.4。
HRMS(ESI),C 20H 24O 3N +[M+H] +的计算值:326.1751,测定值:326.1754。
实施例3-8:制备(3-氧代-3-苯基丙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000084
方法同实施例3-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ7.82(d,J=7.2Hz,2H),7.43(t,J=7.3Hz,1H),7.32(t,J=7.6Hz,2H),3.49(br,2H),3.07(s,2H),2.76(s,3H),1.29(s,9H)。
13C NMR(101MHz,CDCl 3)δ199.0,155.6,136.8,133.3,128.7,128.1,79.6,45.1,37.2,35.3,34.8,28.4。
实施例3-9:制备(3-氧代-3-(噻吩-2-基)丙基)氨基甲酸叔丁酯
Figure PCTCN2019106182-appb-000085
方法同实施例3-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ7.75(br,1H),7.66(d,J=4.8Hz,1H),7.22-7.06(m,1H),3.63(t,J=6.9Hz,2H),3.15(br,3H),2.89(s,9H).
13C NMR(101MHz,CDCl 3)δ192.1,155.7,144.4,134.1,132.5,128.3,79.8,45.4,38.3,35.7和34.9(CH2旋转异构体),28.5。
HRMS(ESI),C 13H 20O 3NS+[M+H] +的计算值:270.1158,测定值:270.1163。
实施例3-10:制备2-(2-(4-异丁基苯基)-2-氧代乙基)吡咯烷-1-羧酸叔丁酯
Figure PCTCN2019106182-appb-000086
方法同实施例3-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ7.92(d,J=7.8Hz,2H),7.22(d,J=7.9Hz,2H),4.32(t,J=8.6Hz,1H),3.59(br,1H),3.36(t,J=6.2Hz,2H),2.92-2.70(m,1H),2.51(d,J= 7.2Hz,2H),2.10-1.99(m,1H),1.93-1.71(m,4H),1.45(s,9H),0.89(d,J=6.6Hz,6H)。
13C NMR(101MHz,CDCl 3)δ198.7,154.4,147.7,134.7,129.3,128.3,79.4,54.4,46.5,45.4,43.4,30.1,28.6,22.3。(两个碳信号重叠)
HRMS(ESI),C 21H 32O 3N +[M+H] +的计算值:346.2377,测定值:346.2379。
实施例3-11:制备(2-(4-(甲氧基羰基)苯基)-2-氧代乙基)吡咯烷-1-羧酸叔丁酯
Figure PCTCN2019106182-appb-000087
方法同实施例3-1,产率见表1。
1H NMR(400MHz,CDCl 3)δ8.24-7.96(m,4H),4.39-4.26(m,1H),3.95(s,3H),3.82-3.54(m,1H),3.48-3.28(m,2H),2.96-2.76(m,1H),2.19-2.02(m,1H),1.98-1.81(m,9H),1.80-1.70(m,1H),1.46(s,9H)。
13C NMR(101MHz,CDCl 3)δ198.5,166.2,154.4,139.9,134.2,129.9,128.2,79.6,63.6,54.2,52.5,46.5,29.7,28.5,28.3。
HRMS(ESI),C 19H 26O 5N +[M+H] +的计算值:348.1805,测定值:348.1809。
实施例3-12【克级反应】:制备4-(((苄氧基)羰基)氨基)-6-氧代-6-苯基己酸叔丁酯
Figure PCTCN2019106182-appb-000088
在100mL的Schlenk反应管(北京欣维尔玻璃仪器有限公司,F891410反应管,容量10mL,磨口14/20)中加入碘化钠(12mmol,1.8g)、三苯基膦(0.8mmol,209.8mg)和1-(1,3-二氧代异吲哚啉-2-基)2-(((苄氧基)羰基)氨基)戊二酸5-叔丁酯(12mmol,3.86g)。用氩气完全置换管内空气三次,然后在氩气氛围下加40mL乙腈,三甲基((1-苯基乙烯基)氧基)硅烷(12mmol,2.31g)。该反应体系 在456nm波长的光照条件下室温下连续搅拌20小时(使用IKA磁力搅拌器,RCT基本型,搅拌速度500转/分钟)。反应完毕后,用H 20淬灭反应,并用乙酸乙酯(3*30mL)萃取反应液,再以实施例3-1的相同方式处理后得到产物。产物为白色固体,共2.91克,产率88%,洗脱剂为乙酸乙酯∶石油醚=1∶10~1∶5。
1H NMR(400MHz,CDCl 3)δ7.94(d,J=7.5Hz,2H),7.60-7.53(m,1H),7.45(t,J=7.6Hz,2H),7.37-7.27(m,5H),5.51(d,J=8.7Hz,1H),5.07(s,2H),4.13(tt,J=14.5,7.3Hz,1H),3.38(dd,J=17.0,4.3Hz,1H),3.14(dd,J=17.0,6.1Hz,1H),2.33(t,J=7.3Hz,2H),2.09-1.80(m,2H),1.42(s,9H)。
13C NMR(101MHz,CDCl 3)δ198.6,172.8,156.0,136.8,136.5,133.4,128.7,128.5,128.1,128.1,128.0,80.6,66.6,48.3,42.8,32.6,29.1,28.1。
HRMS(ESI),C 24H 30NO 5 +[M+H] +的计算值:412.2118,测定值:412.2130。
表1 光诱导非金属催化的β-氨基酮的制备
Figure PCTCN2019106182-appb-000089
Figure PCTCN2019106182-appb-000090
工业可适用性
本公开提供的方法利用光催化,在室温下实现高效催化转化,反应条件温和,操作简单。与之前报道的传统方法相比,该方法避免了贵金属催化剂的使用,符合发展绿色环境友好化学的要求,底物范围广、官能团兼容性好,且该方法可以成功应用于克级规模的放大实验,反应的转化率高,具有良好的工业合成价值前景。

Claims (15)

  1. 一种光诱导非金属催化活性羧酸酯脱羧偶联的方法,所述方法包括如下步骤:
    在碘盐、膦配体、溶剂以及任选的添加剂存在下,通过光照使下面的式1所示的活性羧酸酯化合物发生反应,以使其脱羧引入氮杂环或产生β-氨基酮,
    Figure PCTCN2019106182-appb-100001
    其中R为:不含官能团的C1-C30烷基,含官能团的C1-C30烷基,C6-C30芳基或杂芳基、C6-C30芳烷基,所述官能团为选自卤素、酯基、醚基、酰基、羰基、磺酰基、巯基和氨基中的至少一种,所述C6-C30芳基或杂芳基和C6-C30芳烷基中的至少一个氢原子任选被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代,并且所述C6-C30杂芳基中的杂原子选自氮、氧和硫中的至少一种。
  2. 根据权利要求1所述的方法,其中所述式1的化合物具有如下通式所示的结构:
    Figure PCTCN2019106182-appb-100002
    其中,R 1为叔丁氧羰基以及苄氧羰基,R 2为氢原子或直链、支链或环状的C 1-20烷基,R 3为氢原子,C 6-20芳基,直链、支链或环状的C 1-20烷基,C 1-20硫烷基,C 1-4烷基苯氧基C 1-4烷基,或者R 3和R 2与它们所连接N原子一起形成环。
  3. 根据权利要求1所述的方法,其中所述式1的化合物具有如下通式所示的结构:
    Figure PCTCN2019106182-appb-100003
    在上述式中,R’为C 1-20烷基、C 6-30芳烷基、C 6-30芳基或杂芳基,或者其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 1-20烷基,其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳烷基,或者其中至少一个氢原子被羟基、卤素、巯基、胺基、羰基、酯基或醚基取代的C 6-30芳基或杂芳基。
  4. 根据权利要求1所述的方法,其中所述反应包括:通过光照使式1所示的活性羧酸酯化合物与式2-1或式2-2所示的化合物反应而相应得到式3-1所示的氮杂环化合物或式3-2所示的β-氨基酮:
    Figure PCTCN2019106182-appb-100004
    其中,式2-1表示芳环化合物,并且所述芳环化合物是任选具有取代基团R 1的苯环或者噻吩环化合物,其中TMS表示三甲基硅烷基团,而式2-2表示含氮杂环化合物,R 4是在所述芳环的不同取代位置上的直链或支链的C 1-20烷基、C 6-20芳基或酯基。
  5. 根据权利要求1所述的方法,其中,所述碘盐选自碘化钠、碘化钾以及碘化锂中的至少一种。
  6. 根据权利要求1所述的方法,其中,所述膦配体选自三苯基膦、三(4-甲氧基苯基)膦、三(4-氟苯基)膦、三环己基膦、2-二苯基膦-联苯、4,5-双二苯基膦-9,9-二甲基氧杂蒽以及双(2-二苯基磷苯基)醚中的至少一种。
  7. 根据权利要求1所述的方法,其中,所述添加剂选自三氟乙酸、(R)-联萘酚磷酸酯或手性膦酸。
  8. 根据权利要求1所述的方法,其中,所述光照使用波长范围在365nm到 500nm之间的光源。
  9. 根据权利要求1所述的方法,其中,所述有机溶剂选自N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙腈、四氢呋喃、三氟甲苯、甲苯、丙酮、二氯甲烷和乙酸乙酯中的至少一种。
  10. 根据权利要求1所述的方法,其中,所述式1化合物选自如下结构的化合物:
    Figure PCTCN2019106182-appb-100005
    Figure PCTCN2019106182-appb-100006
    其中,Boc表示叔丁氧羰基, tBu表示叔丁基,Ph表示苯基,Ac表示乙酸基,I表示碘,而Cbz表示苄氧羰基。
  11. 根据权利要求4所述的方法,其中,所述式2-1化合物选自如下结构的化合物:
    Figure PCTCN2019106182-appb-100007
  12. 根据权利要求4所述的方法,其中,所述式2-2化合物选自以下结构的化合物中的至少一种化合物:
    Figure PCTCN2019106182-appb-100008
    其中Ph表示苯基,Br表示溴,而OEt表示乙氧基。
  13. 根据权利要求7所述的方法,其中,所述手性膦酸选自由下面结构式所示PA1-PA14中的至少一种:
    Figure PCTCN2019106182-appb-100009
    上述式中,Ph表示苯基,NHAc表示乙酰胺,Boc表示叔丁氧羰基,I表示碘基,并且Naphthyl表示萘基。
  14. 根据权利要求4所述的方法,其中所述式2-1所示化合物与所述式1所示的摩尔比为1.0-4.0。
  15. 根据权利要求4所述的方法,其中所述式1所示的化合物与所述式2-2所示的化合物的摩尔比为1.0-3.0。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114989089A (zh) * 2022-07-18 2022-09-02 河南师范大学 一种3-烷基-2-苯基吲唑类化合物的光催化制备方法
CN115725225A (zh) * 2022-10-31 2023-03-03 广东希贵光固化材料有限公司 一种uvled哑光涂料及其应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106496114A (zh) * 2016-10-18 2017-03-15 中国科学技术大学 一种芳香氮杂环化合物的制备方法
WO2017046355A1 (en) * 2015-09-18 2017-03-23 Boehringer Ingelheim International Gmbh Stereoselective process
CN106699662A (zh) * 2015-11-18 2017-05-24 安阳师范学院 二甲亚砜参与的高效制备β-氨基酮的新方法
CN109096150A (zh) * 2018-09-26 2018-12-28 中国科学技术大学 一种光诱导非金属催化制备β-氨基酮的方法
CN109134362A (zh) * 2018-09-26 2019-01-04 中国科学技术大学 一种光诱导非金属催化活性羧酸酯脱羧引入氮杂环的方法
CN109180576A (zh) * 2018-09-26 2019-01-11 中国科学技术大学 一种光诱导非金属对映选择性催化杂环芳烃minisci反应的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017046355A1 (en) * 2015-09-18 2017-03-23 Boehringer Ingelheim International Gmbh Stereoselective process
CN106699662A (zh) * 2015-11-18 2017-05-24 安阳师范学院 二甲亚砜参与的高效制备β-氨基酮的新方法
CN106496114A (zh) * 2016-10-18 2017-03-15 中国科学技术大学 一种芳香氮杂环化合物的制备方法
CN109096150A (zh) * 2018-09-26 2018-12-28 中国科学技术大学 一种光诱导非金属催化制备β-氨基酮的方法
CN109134362A (zh) * 2018-09-26 2019-01-04 中国科学技术大学 一种光诱导非金属催化活性羧酸酯脱羧引入氮杂环的方法
CN109180576A (zh) * 2018-09-26 2019-01-11 中国科学技术大学 一种光诱导非金属对映选择性催化杂环芳烃minisci反应的方法

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CN114989089A (zh) * 2022-07-18 2022-09-02 河南师范大学 一种3-烷基-2-苯基吲唑类化合物的光催化制备方法
CN115725225A (zh) * 2022-10-31 2023-03-03 广东希贵光固化材料有限公司 一种uvled哑光涂料及其应用
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