WO2004096753A1 - キラルなブレンステッド酸による不斉合成用触媒および当該触媒を用いた不斉合成方法 - Google Patents
キラルなブレンステッド酸による不斉合成用触媒および当該触媒を用いた不斉合成方法 Download PDFInfo
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0257—Phosphorus acids or phosphorus acid esters
- B01J31/0258—Phosphoric acid mono-, di- or triesters ((RO)(R'O)2P=O), i.e. R= C, R'= C, H
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
- C07C227/10—Formation of amino groups in compounds containing carboxyl groups with simultaneously increasing the number of carbon atoms in the carbon skeleton
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
- C07F9/6574—Esters of oxyacids of phosphorus
- C07F9/65744—Esters of oxyacids of phosphorus condensed with carbocyclic or heterocyclic rings or ring systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/32—Addition reactions to C=C or C-C triple bonds
- B01J2231/323—Hydrometalation, e.g. bor-, alumin-, silyl-, zirconation or analoguous reactions like carbometalation, hydrocarbation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/32—Addition reactions to C=C or C-C triple bonds
- B01J2231/324—Cyclisations via conversion of C-C multiple to single or less multiple bonds, e.g. cycloadditions
- B01J2231/326—Diels-Alder or other [4+2] cycloadditions, e.g. hetero-analogues
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/34—Other additions, e.g. Monsanto-type carbonylations, addition to 1,2-C=X or 1,2-C-X triplebonds, additions to 1,4-C=C-C=X or 1,4-C=-C-X triple bonds with X, e.g. O, S, NH/N
- B01J2231/341—1,2-additions, e.g. aldol or Knoevenagel condensations
- B01J2231/346—Mannich type reactions, i.e. nucleophilic addition of C-H acidic compounds, their R3Si- or metal complex analogues to aldimines or ketimines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
- B01J2231/44—Allylic alkylation, amination, alkoxylation or analogues
Definitions
- the present invention relates to a catalyst used for asymmetric synthesis, and a method for asymmetric synthesis using the catalyst. Further, the chiral compound obtained by the method of the present invention is useful as a compound used for a medicament, a pesticide and the like, and a synthetic intermediate thereof.
- a Diels-Alder ring reaction is known with a metal salt of a chiral binaphthol-phosphoric acid derivative (see, for example, JP-A-2000-336097).
- the asymmetric synthesis method using chiral brenstead acid was not known.
- chiral compounds have been synthesized by performing asymmetric Mannich-type reactions using chiral urea derivatives (see, for example, Ann a G. Wenze 1, et al., “Asymmetric Catalytic Mannich”).
- asymmetric synthesis methods such as the asymmetric Mannich type reaction and the asymmetric aza-Diels-Alder reaction, give high optical purity to the products. It is indispensable to use the metal. Therefore, it can be used as an asymmetric synthesis catalyst that can be easily synthesized without using metals such as lanthanide series elements. It is an object of the present invention to provide a compound, provide an asymmetric synthesis method using the compound, and provide a chiral compound obtained by the asymmetric synthesis method.
- asymmetric synthesis catalyst which can be used under practical reaction conditions and gives high optical purity.
- a compound having high optical purity can be synthesized by using a chiral Prensted acid as a catalyst, and have completed the present invention.
- This chiral Br ⁇ nsted acid is a chiral pinaphthol monophosphate derivative, for example, a chiral pinaphthol monophosphate derivative represented by the following formula (1) or (3).
- it is an asymmetric synthesis method using a chiral Bronsted acid as a catalyst.
- R 2 , R 3 , and R 4 are each independently a hydrogen atom; a halogen atom; a nitro group; a monohalogenomethyl group; a dihalogenomethyl group; a trihalogenomethyl group; Tolyl group; formyl group; -COA x ( ⁇ represents an alkyl group which may have 1 to 6 carbon atoms);-COOA 2 (A 2 may have 1 to 6 carbon atoms) An alkyl group); an alkyl group having 1 to 20 carbon atoms and optionally branched; an alkenyl group having 3 to 20 carbon atoms and optionally branched; alkoxy having 1 to 20 carbon atoms and optionally branched.
- a 2 represents an alkyl group which may if there is a branch of one to 6 carbon atoms), an alkyl group even if the branch of one to 10 carbon atoms, branched having 1 to 10 carbon atoms
- An aryl group substituted by 1 to 4 at least one selected from an alkenyl group which may have an alkyl group and an alkoxy group having 1 to 20 carbon atoms which may have a branch; a nitro group, a halogen atom, a monohalogeno A methyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, a formyl group, one COAi (also an alkyl group having 1 to 6 carbon atoms which may have a branch), one CO ⁇ A 2 (A 2 Branches with 1 to 6 carbon atoms An alkyl group which may be present) and at least one selected from an alkyl group having 1 to 20 carbon atoms which may have a branch,
- a 3 , A 4 , and A 5 in the formula (2) each may be independently an alkyl group, a phenyl group, or a C 1 to C 6 branched chain which may have 1 to 6 carbon atoms. Represents a phenyl group substituted by 1 to 4 alkyl groups which may be present.
- R 2 may be each independently a hydrogen atom; a halogen atom; a nitro group; a monohalogenomethyl group; a dihalogenomethyl group; a trihalogenomethyl group; a nitrile group; a formyl group; At represents an alkyl group having 1 to 6 carbon atoms which may have a branch); — COOA 2 (A 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch); An optionally branched alkyl group; an alkenyl group having 3 to 20 carbon atoms which may be branched; an alkoxy group having 1 to 20 carbon atoms which may be branched; aryl group; ⁇ 2-substituted aryl group; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, one COAi (Ai has 1 to 6 carbon atoms also shows an alkyl group having
- the present invention is an asymmetric synthesis method using the formula (1) or the formula (3) as a catalyst.
- the present invention relates to a chiral brenstead acid, a chiral pinaphthol monophosphate derivative, or a chiral compound obtained by an asymmetric synthesis method using formula (1) or (3) as a catalyst.
- the present invention relates to a method for producing a chiral amino compound from an imine derivative and an enol derivative using a chiral Brönsted acid, a chiral binaphthol monophosphate derivative, or a compound of the formula (1) or (3) as a catalyst. It is.
- the present invention is a chiral amino compound obtained by the above production method.
- the present invention is an asymmetric Mannich reaction using a compound of the formula (1) or (3) as a catalyst.
- the present invention is an asymmetric hydrophosphorylation reaction using a compound of the formula (1) or (3) as a catalyst.
- the present invention is an asymmetric aza Diels-Alder reaction using a compound of the formula (1) or (3) as a catalyst.
- the present invention is an asymmetric aryl reaction using a compound of the formula (1) or (3) as a catalyst.
- the present invention is an asymmetric Strecker type reaction using a compound of the formula (1) or (3) as a catalyst.
- the present invention is an asymmetric aminoalkylidation reaction using a compound of the formula (1) or (3) as a catalyst.
- the chiral brenstead acid derivative which can be applied to the asymmetric synthesis method of the present invention includes a chiral binaphtho-monophosphate derivative represented by the above formula (1), that is, an R-form binaphtho-monophosphate derivative or an S-form Can be exemplified. Therefore, equation (1) represents an R-form or an S-form.
- This derivative can be synthesized from R-form or S-form 1,1,1-pinaphthyl-2,2′-diol.
- the formula (1) can be synthesized with reference to the synthesis methods described in JP-A-47-30617, JP-A-2000-336097, and US Pat. No. 3,848,030.
- the formula (3) can be synthesized with reference to these.
- the synthesis of the formula is carried out, for example, by protecting the 1,1,1-pinaphthyl-2,2,1-diol hydroxyl group of the R-form or the S-form, followed by halogenation at the 3-, 3'-, 6- and / or 6'-positions.
- a substituent is introduced by a cross-coupling reaction or the like, and the derivative is phosphorylated by reacting with a derivative of phosphorus or the like.
- the halogen of the halogen derivative is preferably a chlorine atom, a bromine atom or an iodine atom, and more preferably a bromine atom or an iodine atom.
- the positions at which the halogen atoms are bonded in this halogen derivative are at positions 3, 3, 3 ', 6, 3, 6, 6, 6, 6', 3, 3, 6, 6, 3, 6, 6 'position or 3, 3', 6, 6, position, etc., and preferably 3, 3, position, 3, 6, position, 6, 6, position, 3, 3 ', 6 position, or 3 position , 3 ', 6, 6, position, etc., and more preferably 3, 3, position, 3, 3', 6 position or 3, 3 ', 6, 6' position.
- the bonding position of the halogen atom can be applied to the bonding position of the substituent in the formula (1). Further, this bonding position is basically applicable to the bonding position of the substituent in the formula (3).
- R 2 , R 3 , and R 4 in the formula (1) are each independently a hydrogen atom, and R 2 , R 3 , and R 4 are not all hydrogen atoms. And it is not preferred that Z or R 2 be a hydrogen atom. From this, R 1, R 2 , R 3 and R 4 in the formula (1) may be each independently a hydrogen atom (RR 2 , R 3 > and R 4 are all hydrogen atoms.
- Halogen nitro group; monohalogenomethyl group; dihalogenomethyl group; trihalogenomethyl group; nitrile group; formyl group; one COAi; —CO—A 2 ;
- aryl groups substituted aryl groups; nitro group, halogen atom, monohalogenomethyl group, dino, logenomethyl group, trihalogenomethyl group, nitrile group, phor ', mill group, — COA —COOA 2 , and carbon number 1
- An aryl group optionally substituted by at least one or more of the alkyl groups which may have up to 20 branches and substituted by an aryl group which may be substituted by 1 to 4 carbon atoms; Or a cycloalkyl group of 8 to 8; or a group represented by the following formula (2):
- Examples of the halogen atom bonded to R 2 , R 3 , and Z or R 4 in the formula (1) include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom. Of these, a fluorine atom, a chlorine atom, or a bromine atom is preferable, and a chlorine atom or a bromine atom is more preferable.
- the halogen atom of the monohalogenomethyl group, dihalogenomethyl group or trihalogenomethyl group bonded to R 2 , R 3 , and Z or R 4 in the formula (1) is a fluorine atom, a chlorine atom, a bromine atom, or Examples thereof include an iodine atom, preferably a fluorine atom, a chlorine atom, or a bromine atom, and more preferably a fluorine atom or a chlorine atom. Further, those having many halogen atoms bonded thereto are preferable. That is, it is a trifluoromethyl group or a trichloromethyl group.
- R 1, R 2 , R 3 , and Z or R 4 bonded to R—COAi represents an alkyl group which may have a branching of carbon number:! To 6, and is preferably methyl. Or an ethyl group, and more preferably a methyl group.
- R have R 2, R 3, and Roh or eight 2 10 008 2 that bind to R 4 of formula (1) shows an alkyl group which may a branched having 1 to 6 carbon atoms Yes, a methyl group, an ethyl group, or a propyl group is preferred, and an ethyl group is more preferred.
- R 1 R 2 , R 3 , and / or RJ have a branch having 1 to 20 carbon atoms.
- the alkyl group which may be substituted preferably has 2 to 18 carbon atoms, and more preferably has 4 to 16 carbon atoms.
- examples thereof include an octyl group, an i-octyl group, a nonyl group, a decyl group, a dodecyl group, a tetradecyl group, and a hexadecyl group.
- it is a t-butyl group, a pentyl group, a hexyl group, or an octyl group.
- the optionally branched alkenyl group having 3 to 20 carbon atoms bonded to R 2 , R 3 , and Z or R 4 is preferably 3 to 18 carbon atoms, and more preferably. Has 4 to 16 carbon atoms.
- Specific examples include a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, a dodecenyl group, a tetradecenyl group, and a hexadecenyl group.
- it is a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, or an octenyl group.
- it is a butoxy group, a pentyloxy group, a hexyloxy group, or an octyloxy group.
- Examples of the aryl group bonded to R, R 2 , R 3 , Z or R 4 in the formula (1) include a phenyl group, a 1-naphthyl group, a 2-naphthyl group, a phenanthryl group, and an anthryl group. Preferably, it is a phenyl group, a 1-naphthyl group, or a 2-naphthyl group.
- Examples of R 2 , R 3 , and R or R 4 in the formula (1) include an aryl group substituted by 1 to 2 with an aryl group.
- the aryl group examples include a phenyl group, a naphthyl group, a phenanthryl group, and an anthryl group.
- the aryl group is a phenyl group or a naphthyl group
- the aryl group bonded to the aryl group is a phenyl group, a naphthyl group.
- Specific examples thereof include a biphenyl group, a naphthylphenyl group, a phenylnaphthyl group, and a naphthylnaphthyl group.
- R 2 , R 3 , and / or R 4 are a nitro group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, a formyl group.
- An aryl group substituted by 1 to 4 with at least one or more selected from alkoxy groups can be exemplified.
- the alkyl group bonded to the aryl group preferably has 1 to 10 carbon atoms, and more preferably has 1 to 6 carbon atoms. Specific examples include a methyl group, an ethyl group, a propyl group, and a butyl group.
- the aryl group include a tolyl group, a xylyl group, a mesityl group, a methylnaphthyl group, a dimethylnaphthyl group, and a methylanthryl group. And preferably, it is a tolyl group, a xylyl group, a mesityl group or a methylnaphthyl group.
- the alkenyl group bonded to the aryl group preferably has 3 to 18 carbon atoms, and more preferably has 4 to 16 carbon atoms.
- Specific examples include a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, a dodecenyl group, a tetradecenyl group, and a hexadecenyl group.
- it is a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, or an octenyl group.
- the alkoxy group bonded to the aryl group preferably has 1 to 12 carbon atoms, and more preferably has 1 to 6 carbon atoms.
- methoxy, ethoxy, propoxy, i-propoxy, butoxy, i-butoxy, t-butoxy, pentyloxy, i-pentyloxy, hexyloxy, i-hexyloxy, etc. Can be exemplified.
- it is a methoxy group, an ethoxy group, or a propoxy group.
- Substituents bonded to this aryl group include nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, -COA 1 ( represents an alkyl group even if the branch), and - C_ ⁇ _ ⁇ _A 2 (a 2 is more than at least one selected from the show) an alkyl group which may a branched having 1 to 6 carbon atoms 1 to 4 substituted with nitro group, halogen atom, monohalogeno 4005602 It is preferable that one to four substituted by at least one or more selected from a methyl group, a dihalogenomethyl group, a trihalogenomethyl group, and a nitrile group.
- this aryl group include:-ditrophenyl group, m-nitrophenyl group, o-ditrophenyl group, 2,4-dinitrophenyl group, p-fluorophenyl group, m-fluorophenyl group, o-fluoro mouth Phenyl, 3,5-difluorophenyl, 3,4,5-trifluorophenyl, 2,4,6-trifluorophenyl, p-chlorophenyl, m-chlorophenyl , O-chlorophenyl, 3,5-dichlorophenyl, 3,4,5-trichlorophenyl, 2,4,6-trichlorophenyl, p-bromophenyl, m-bromophenyl o— Promophenyl, 3,5-dibromophenyl, p-trifluoromethylphenyl, m-trifluoromethylphenyl, o-trifluoromethylphenyl,
- R 2 , R 3 , and / or R 4 represent a nitro group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, a formyl group, -COAi (where A is One C ⁇ OA 2 (where A 2 represents an alkyl group which may have 1 to 6 carbon atoms), and 1 to 20 carbon atoms. And an aryl group which is substituted with one to four substituents, which may be substituted with one to four substituents, with at least one selected from alkyl groups which may have a branch.
- aryl group which may be substituted by 1 to 4 groups an aryl group having a substituent described above can be used, and preferred ones are also the same.
- the aryl group substituted with an aryl group having a substituent is preferably one substituted with one or two.
- a cycloalkyl group having 3 to 8 carbon atoms in R 2 , R 3 and / or R 4 is preferably a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cyclooctyl group, or the like. Preferably, it is a cyclopentyl group or a cyclohexyl group.
- R 2 , R 3 , and Z or RJ can be expressed as Equation (2) as Triffee ⁇ ⁇
- Examples thereof include a nilsilyl group, a trimethylsilyl group, a dimethylethylsilyl group, a triethylsilyl group, a trisopropylsilyl group, a t-butyldimethylsilyl group, a t-butyldiphenylsilyl group, and a diphenylmethylsilyl group.
- it is a triphenylsilyl group, a trimethylsilyl group, or a diphenylmethylsilyl group.
- an electron-withdrawing group such as a nitro group or trifluoromethyl group is bonded to a chiral Brnsted acid.
- an electron-withdrawing group such as a nitro group or trifluoromethyl group is bonded to a chiral Brnsted acid.
- electron-withdrawing groups include a nitro group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trioctane genomethyl group, a nitrile group, a formyl group, and —C OA i (where A is the number of carbon atoms).
- OA 1 represents an alkyl group even if branch 6
- single CO OA 2 (a 2 is an alkyl group but it may also be a branched having 1 to 6 carbon atoms) and the like can be exemplified, further nitro Preferred examples thereof include a group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, and a formyl group.
- halogen atom of the monoperogenomethyl group dioctogenomethyl group, or trihalogenomethyl group
- a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom can be exemplified, and a fluorine atom, a chlorine atom, or a bromine atom is preferable.
- —COAi represents an alkyl group having 1 to 6 carbon atoms which may have a branch, and is preferably a methyl group or an ethyl group, and more preferably a methyl group.
- —CO OA 2 may be an ester group having an alkyl group having 1 to 6 carbon atoms bonded thereto, and is preferably an ethyl ester group.
- R 2 , R 3 and R 4 in the formula (1) are preferably aryl groups to which an electron-withdrawing group is bonded, and furthermore, an electron-withdrawing group to which R 2 , R 3 and R 4 are bonded.
- a phenyl group is preferable, and a phenyl group to which a nitro group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, or a formyl group is bonded is particularly preferable.
- a plurality of these electron withdrawing groups may be bonded.
- an aryl group having an electron withdrawing property such as a nitro group or a trifluoromethyl group, is bonded to R 2 and R 2 .
- the electron-withdrawing group bonded to the aryl group is preferably bonded to a position exhibiting electron-withdrawing property.
- R 2 , R 3 and R 4 are bonded to the substituents, but R i and R 2 are preferred.
- R i and R 2 are preferred.
- R 2 in the formula (3) in the present invention those exemplified in the formula (1) can be used.
- the compound represented by the formula (1) it is preferable to use the compound represented by the formula (1) as the asymmetric synthesis catalyst.
- the chiral Bronsted acid represented by the formula (1) or (3) used in the asymmetric synthesis may be in the form of a salt as long as it can be used as an acid catalyst.
- the chiral pinaphthol monophosphate derivative used in the present invention is exemplified below.
- the compounds exemplified below are R-forms or S-forms, but are not shown. That is, (R) -1,3'-bis (4-1-2trophenyl) -1,1,1,1-pinaphthyl-2,2, diyl phosphoric acid, and (S) —3,3'-bis (4-1-2trophenyl)
- the 1,1,1'-binaphthyl-2,2'-monodiphosphoric acid is shown as 3,3, -bis (4-nitrophenyl) 1,1,1,1-pinaphthyl 2,2'-di-diphosphoric acid.
- Chiral binaphthol-phosphoric acid derivatives include 3,3'-dimethyl-1,1'-pinafluoro 2,2, -diylphosphoric acid, 3,3, -getyl-1,1,1 pinaphthyl-2,2 ' Diylphosphoric acid, 3,3,1-Jeep mouth pill-1-1,1,1-Pinaphthyl-2,2 'diylphosphoric acid, 3,3'-Diisopropyl-1-1,1, -Binaphthyl-2,2'-diylphosphoric acid, 3,3 '—Deeptyl-1, —Binaphthyl— 2,2 ′ Monodiylphosphoric acid, 3,3, —Di-t-butyl—1,1, —Pinaphthyl-2,2, Monodiylphosphoric acid, 3,3, —Di-pentylyl 1 , 1'-Pinaphthyl-2,2,1-diy
- the present invention can be applied to a synthesis reaction using a Bronsted acid as a catalyst. That is, a reaction product of a chiral compound can be obtained by using a chiral Brensted acid as a catalyst.
- the reaction to which the present invention can be applied include an asymmetric Mannich type reaction, an asymmetric aza Diels-Alder reaction, an asymmetric aryl reaction, an asymmetric hydrophosphorylation reaction, an asymmetric Strecker reaction, and an aromatic compound reaction.
- Asymmetric aminoalkylation reaction and the like the reaction is not limited to these reaction examples as long as a chiral compound can be obtained using the chiral pinaphthol monophosphate derivative of formula (1) or formula (3) as a catalyst.
- the absolute configuration of the product obtained by the reaction of the present invention depends on the absolute configuration of the chiral brenstead acid.
- a product having a corresponding asymmetric carbon is obtained, and when an S-form of a Bronsted acid is used, a product having a corresponding asymmetric carbon is obtained.
- the product having a corresponding asymmetric carbon is provided, and when the S-formula (1) is used, a product having a corresponding asymmetric carbon is provided.
- the absolute configuration of the product the absolute configuration of the product differs depending on the raw material for synthesis, which does not mean that the R-form of the Bronsted acid gives the R-form. Note that the same applies to equation (3).
- A-type zeolites represented by molecular sieves 3 A, 4 A, and 5 A are used as needed to dehydrate the reaction system.
- Various zeolites such as X, Y and L types may be used.
- the asymmetric Mannich type reaction performed by applying the present invention includes a reaction represented by the following formula (6) from an enol derivative represented by the following formula (4) and an imine derivative represented by the following formula (5).
- a reaction represented by the following formula (6) from an enol derivative represented by the following formula (4) and an imine derivative represented by the following formula (5) One that can obtain an amino compound is exemplified. (Four)
- R 5 in the formula (4) represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a branch, or an aryl which may have an alkyl group having 1 to 6 carbon atoms.
- R 6 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may have a branch
- R 7 represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- a group or an alkoxy group which may have 1 to 6 carbon atoms, and R 8 may be an alkyl group, a phenyl group, Or a phenyl group substituted by 1 to 4 with an alkyl group having 1 to 6 carbon atoms which may have a branch.
- R 9 in the formula (5) is a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group having 1 to 6 carbon atoms which may have a branch, or an alkoxy group having 1 to 6 carbon atoms which may have a branch.
- R 10 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms which may have a branch, or an alkoxy group having 1 to 6 carbon atoms which may have a branch.
- R 5 to R 7 in the formula (6) are the same as in the formula (4), and R 9 and R 10 are the same as in the formula (5).
- the amount of formula (1) or (3) can be used in any ratio, but the use of a too large amount is economical. Not too much 4005602
- the use ratio of the chiral Brönsted acid of the formula (1) or the formula (3) is limited to the imine derivative represented by the formula (5). On the other hand, it is 0.01 mol% or more and 90 mol% or less. From this, the use ratio of the formula (1) or the formula (3) is preferably 0.01 to 90 mol%, more preferably 0.1 to 60 mol%, and particularly:! Is preferably from 50 to 50 mol%, more preferably from 3 to 30 mol%.
- the ratio of the chiral Brensted acid can be the ratio applied to the asymmetric Mannich reaction.
- any imines can be applied, and specific examples include the formula (5).
- R 9 in the formula (5) is a hydroxyl group, and 1 ⁇ . Is a hydrogen atom.
- R 5 in the formula (4) is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a branch, or an aryl group which may have an alkyl group having 1 to 6 carbon atoms. And is preferably an alkyl group or an aryl group having 1 to 6 carbon atoms, and more preferably a methyl group or an ethyl group.
- R 6 in the formula (4) is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may have a branch, preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group or ethyl. Group.
- R 7 in the formula (4) is an alkoxy group which may have 1 to 6 carbon atoms or an alkyl group which may have 1 to 6 carbon atoms, preferably 1 carbon atom. It is an alkoxy group which may have up to 6 branches, more preferably a methyl group, an ethyl group, or a propyl group.
- R 8 in the formula (4) is an alkyl group or a phenyl group which may have 1 to 4 carbon atoms which may be different, and preferably has 1 to 4 carbon atoms which may be different. And more preferably an alkyl group having 1 to 3 carbon atoms which may have a branch.
- R 8 with R 7 is methoxyethanol radicals
- R 5 and R 6 is a methyl group of the formula (4) is a methyl group
- R 5 and R 6 is R 7 is methyl group methoxy
- R 8 is t-butyl and methyl
- R 5 and R 6 are methyl
- R 7 is i-propoxy
- R 8 is methyl
- R 5 and R 6 are hydrogen
- R 7 is a methoxy group and R 8 is a methyl group.
- Formula (4) can be obtained from carboxylic acid esters, ketones, or aldehydes and silyl chloride exemplified by the following formula (7).
- R 8 in the formula (7) are those similar to R 8 of formula (4).
- the silyl enol of cyclohexanone 1-ter-form 1-cyclohexenyloxy [((1-naphthyl) phenyl) methyl] dimethylsilane can be used to convert cyclohexanone to lithium diisopropyl at low temperatures (eg, -78 ° C).
- Treatment with an amide generates a lithium enolate, which can be captured with [((1-naphthyl) phenyl) methyl] dimethylsilyl chloride.
- the corresponding silyl enol ether can be derived from ketones having active hydrogen such as acetone and benzophenone.
- silyl ketene acetal form of benzyl acetate is obtained by treating benzyl acetate with lithium diisopropylamine at a low temperature (for example, at ⁇ 78 ° C.) to generate lithium enolate, which is then converted to [((1-naphthyl) phenyl ) Methyl] dimethylsilyl chloride.
- the corresponding silyl ketene acetal can be derived from a carboxylic acid ester having active hydrogen.
- ketones that can be used to obtain the formula (4) of the present invention, most ketones can be used, and acetophenones, (4-methylphenyl) acetophenone, (3-methylphenyl) acetophenone, and (2-methylphenyl) Acetophenone, (4-ethylphenyl) acetophenone, (3-ethylphenyl) acetophenone, (2-ethylphenyl) acetophenone, (4-i-propylphenyl) acetophenone, (3-i-propylphenyl) acetophenone ; ( 2- i-propylphenyl) acetophenone, 1-phenylpropane 1-1-one, 1- (4-methylphenyl) propane 1-1-one, 1- (3-methylphenyl) propane 1-1-one, 1-1 (2 —Methylphenyl) 1-one propane, 1-one butane 1-one, 1- (4-methyl Phenyl) Single butane one 1 one one
- Aldehydes that can be used to obtain the formula (4) of the present invention include most aldehydes, such as ethyl formate, methoxycarbonylaldehyde, acetaldehyde, propionaldehyde, butanal, isobutanal, pentanal, and acrolein.
- Examples include trobenzaldehyde, naphthyl 2-aldehyde, 2-furfural, cinnamaldehyde, 3-phenylpropanal, 2-benzyloxyacetaldehyde, and the like.
- Examples include phenylthioamide.
- an imine represented by the formula (5) and a ketone or an enol represented by the formula (4) are equimolar.
- the ketones or enols may be used in an amount of 0.1 to 10 mol, preferably 1 to 5 mol, more preferably 1 to 5 mol, per mol of the imine. ⁇ 4 mol.
- any solvent can be used as long as it is a reaction inert solvent.
- halogenated solvents such as carbon tetrachloride, chloroform, dichloromethane, 1,2-dichloroethane, 1,1,1-trichloroethane, and 1,1,2-trichloroethane, and getyl Ether and And ethereal solvents such as tetrahydrofuran, and aromatic solvents such as toluene, xylene, ethylbenzene, isopropylbenzene, and mesitylene.
- aromatic solvents Preferred are aromatic solvents.
- the reaction temperature varies depending on the compound used in the reaction, but it can be generally carried out in the range of 100 to 50 ⁇ . Yes, it is preferably 180 to 180, and more preferably 180 to -40 ° C.
- the concentrations of the formulas (4) and (5) used in the reaction are not particularly limited as long as they can be dissolved in a solvent. Even if the concentration is so high that it cannot be dissolved, the asymmetric synthesis method can be applied as long as the reaction is not hindered. Usually, it is in the range of 0.1% by mass to 50% by mass based on the solvent.
- reaction time for applying the asymmetric synthesis method of the present invention to the asymmetric Mannich reaction varies depending on the type of the compound used for the reaction and the type of the chiral Brensted acid catalyst, but usually 1 to 96. Can be done in time.
- a general purification method can be used.
- a specific example is a method in which an appropriate amount of an aqueous solution of sodium hydrogencarbonate is added to the reaction solution, followed by extraction with ethyl acetate, drying over anhydrous sodium sulfate, filtration, and concentration of the filtrate to obtain a product.
- a general method such as preparative silica gel thin-layer chromatography, column chromatography, distillation, or recrystallization can be used.
- the application of the present invention to the asymmetric Mannich type reaction has been described.
- the asymmetric aza Diels-Alder reaction, the asymmetric arylation reaction, the asymmetric hydrophosphorylation reaction, and the asymmetric can also be applied to a trekker type reaction, an aminoalkylation reaction of an asymmetric aromatic compound, and the like.
- reaction conditions described in the asymmetric Mannich reaction can be applied mutatis mutandis. That is, the conditions described in the asymmetric Mannich reaction may be applied in consideration of the amount of the acid catalyst in various asymmetric reactions.
- the asymmetric aza Diels-Alder reaction performed by applying the present invention includes the following formula (5) and the following: (2) An example in which the following equation (9) is obtained from equation (8) can be given.
- R 8 in the formula (8) can be similar to those in R 8 of formula (4), R "represents an optionally branched alkyl group having 1 to 6 carbon atoms Preferably, it is a methyl group or an ethyl group.
- Examples of the asymmetric aryl reaction performed by applying the present invention include those in which the following formula (12) is obtained from the following formulas (10) and (11).
- R 12 represents an alkyl group having 1 to 6 carbon atoms which may have a branch or an aryl group having a substituent
- R 13 has a substituent such as a hydroxyl group. Indicates an aryl group that may be used.
- B1 in the formula (11) represents a trialkylstannyl group or a trialkylsilyl group, and the alkyl group may have a branch having 1 to 6 carbon atoms.
- R 12 and R 13 in equation (12) are the same as in equation (10).
- R 12 in the formula (10) represents an alkyl group having 1 carbon atom which may have a branch or an aryl group having a substituent, preferably a methyl group, an ethyl group, or a phenyl group.
- R 13 represents an aryl group which may have a substituent such as a hydroxyl group, preferably a phenyl group ⁇ a phenyl group having a hydroxyl group, and particularly preferably a 2-hydroxyphenyl group. .
- B 1 in the formula (11) represents a trialkylstannyl group or a trialkylsilyl group.
- the alkyl group may have a branch having 1 to 6 carbon atoms, and is preferably methyl. Or an ethyl group.
- R 12 and R 13 in equation (12) are the same as in equation (10).
- Examples of the asymmetric hydrophosphorylation reaction performed by applying the present invention include those in which the formula (14) is obtained from the formula (10) and the following formula (13).
- R 14 in the formula (13) represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- R 12 and R 13 in the equation (14) are the same as in the equation (10), and R 14 is the same as the equation (13).
- R 14 in the formula (13) represents an alkyl group having 1 to 6 carbon atoms which may have a branch; JP2004 / 005602
- R 12 and R 13 in the equation (14) are the same as in the equation (10), and R 14 is the same as the equation (13).
- Examples of the asymmetric Stretz force-type reaction performed by applying the present invention include those in which the formula (16) is obtained from the formula (10) and the following formula (15).
- B 2 in the formula (15) represents a hydrogen atom, a trialkylstannyl group, or a trialkylsilyl group, and the alkyl group may have 1 to 6 carbon atoms. is there.
- R 12 and R 13 in equation (16) are the same as in equation (10).
- B2 in the formula (15) represents a hydrogen atom, a trialkylstannyl group, or a trialkylsilyl group, and the alkyl group may have 1 to 6 carbon atoms. And preferably a methyl group or an ethyl group.
- R 12 and R 13 in equation (16) are the same as in equation (10).
- Examples of the asymmetric aminoalkylation reaction of an aromatic compound performed by applying the present invention include those in which the formula (18) is obtained from the formula (10) and the following formula (17).
- R 15 in the formula (17) may have a plurality of bonds, and when it has a plurality of bonds, each may be different and has an acid group, a halogen atom, and a branch having 1 to 6 carbon atoms. And represents an alkyl group which may be branched or an alkoxy group which may have 1 to 6 carbon atoms and may have a branch.
- R 12 and R 13 in equation (18) are the same as in equation (10), and R 15 is the same as in equation (17).
- R 15 in the formula (17) may have a plurality of bonds, and when it has a plurality of bonds, they may be different from each other, having a hydroxyl group, a halogen atom, and a branch having 1 to 6 carbon atoms.
- the alkyl group having 1 to 6 carbon atoms which may have a branch is preferably a methyl group, an ethyl group, or a propyl group, and an alkoxy group having 1 to 6 carbon atoms which may have a branch. Preferred are a methoxy group and an ethoxy group.
- R 12 and R 13 in equation (18) are the same as in equation (10), and R 15 is the same as in equation (17).
- the present invention can be applied to a synthesis reaction using a Bronsted acid as a catalyst to obtain a chiral compound. At this time, since no metal salt or metal complex is used, the burden on the environment is small. Further, as for the conditions of the asymmetric synthesis to which the present invention is applied, the conditions of the synthesis reaction using brenstead acid as a catalyst can be used almost as it is.
- the chiral compound obtained by applying the present invention is useful as a compound used for a fragrance, a medicine, a pesticide, or the like, and a synthetic intermediate thereof.
- R 2 , R 3 , and R 4 may be each independently hydrogen Atom (R 1, R 2 , R 3 , and R 4 are not hydrogen atoms at the same time); Aryl group; Aryl group 4005602
- 1 to 2 substituted aryl groups 1 to 2 substituted aryl groups; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, one COA or one CO ⁇ A 2 , one carbon atom At least one or more selected from an alkyl group having 10 branched groups, an alkenyl group having 1 to 10 carbon atoms and optionally branched, and an alkoxy group having 1 to 20 carbon atoms and optionally branched.
- Three It represents a or formula (2) 0; cycloalkyl group 8.
- a 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch. Additionally, or Rukoto to a hydrogen atom bonded to R 2 is not preferable.
- Ri and R 2 each represent a hydrogen atom (Ri and R 2 is not hydrogen at the same time 5); aryl group; aryl group substituted by 1 to 2 with 7-aryl group; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group , Trihalogenomethyl group, nitrile group, formyl group, —C ⁇ A —COOA 2 , alkyl group which may have 1 to 10 carbon atoms, alkenyl group which may have 1 to 10 carbon atoms And at least one selected from alkoxy groups having 1 to 20 carbon atoms which may be branched, and substituted with 1 to 4 aryl groups; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl Group, trihalogenometi Group, nitrile group, a formyl group, one COA "
- a 2 represents an alkyl group having 1 to 6 carbon atoms, which may be branched, or a hydrogen atom is not preferably bonded to R 2 .
- R 3 and R 4 are each independently a hydrogen atom, a halogen atom, a nitro group, a mono group. Halogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, 2004/005602
- An alkoxy group or an aryl group which may be present; Ri and R 2 may be each independently; an aryl group; an aryl group substituted by 1 to 2 with an aryl group; a nitro group, a halogen atom , Mono-octalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, — COA ⁇ — COOA 2 , carbon number:!
- a 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- R i and R 2 may be each independently; aryl group; 1-2 substituted by aryl group Aryl group; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, — COA —COOA 2 ,-may have 1 to 10 carbon atoms It is substituted by 1 to 4 at least one selected from an alkyl group, an alkenyl group having 1 to 10 carbon atoms which may have a branch, and an alkoxy group having 1 to 20 carbon atoms which may have a branch.
- A represents an alkyl group which may if there is a branch of one to 6 carbon
- a 2 represents a branched there connection also alkyl group having 1-6 carbon atoms.
- R 3 and R 4 each independently represent a hydrogen atom, Logen atom, Nito A mouth group, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group, a formyl group, —COA—COOA 2 , an alkoxy group having 1 to 20 carbon atoms which may have branching;
- ⁇ And R 2 may be each independently; an aryl group substituted by 1 to 2 with an aryl group; a nitro group, a halogen atom, a monohalogenomethyl group, a dihalogenomethyl group, a trihalogenomethyl group, a nitrile group , A formyl group, — an aryl group substituted by 1-4 with at least one selected from COA or C COOA 2 and an alkoxy group having 1 to 20 carbon atoms which may have
- R ⁇ and R 2 may be each independently; an aryl group substituted by 1 to 2 with an aryl group; Nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, one COA — CO ⁇ A 2 , and C1-C20 optionally branched alkoxy
- At least one kind of good Ariru group being 1-4 substituted with one branch is selected from an alkyl group, even having 1 to 20 carbon atoms Ri 1-2 substituted Ariru group;.
- R 3 and R 4 may be each independently a hydrogen atom or a halogen.
- An atom, a nitro group, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms or an aryl group, and R 2 are each independently Aryl group substituted with an aryl group; nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, phoryl group JP2004 / 005602
- Mill group one COA — C ⁇ A 2 , C 1-10 optionally branched alkyl group, C 1-10 optionally branched alkenyl group, and C 1-20 branched group Or an aryl group substituted with 1 to 4 at least one selected from an alkoxy group which may have; or a formula (2).
- A represents an alkyl group having 1 to 6 carbon atoms which may have a branch
- a 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- R i and R 2 may be each independently; an aryl group; an aryl substituted by 1 to 2 with an aryl group.
- R 3 and R 4 are each independently a hydrogen atom or a halogen atom.
- the 1 ⁇ Oyobi 1 2 each may be independent; Ariru group; Ariru 1-2 substituted Ariru group by group; or a nitro group, a halogen atom, mono-halogeno-methyl group, dihalo Genomechiru group , trihalogenomethyl group, nitrile group, a formyl group, a 1-4 substituted one COA -COO a 2, and at least one or more of branched having 1 to 20 carbon atoms is selected from alkoxy groups even Represents an aryl group.
- 1 represents an alkyl group having 1 to 6 carbon atoms which may have a branch
- a 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- the scale and R 2 may be each independently; an aryl group; An aryl group substituted by 1 to 2 with a aryl group; or a nitro group, halogen atom, monohalogenomethyl group, dihalogenomethyl group, trihalogenomethyl group, nitrile group, formyl group, —COA-C ⁇ 2 represents an aryl group substituted by 1 to 4 with at least one selected from OA 2 and an alkoxy group having 1 to 20 carbon atoms which may have a branch. Note that has 1 to 6 carbon atoms And A 2 represents an alkyl group having 1 to 6 carbon atoms which may have a branch.
- M indicates the molar concentration (mo 1 / liter).
- the inside of the reaction system was replaced with nitrogen gas, and reagents and solvents were used after dehydration.
- the G AO 8 (1.89 mmo 1.) and DMF obtained in Synthesis Example 6 were placed in a two-necked eggplant flask, and I midazo 1 e (5.29 mmo 1.) and Tripheny 1 si 1 y 1 Ch 1 oride (5.79mmo 1.) was added, and the mixture was stirred at room temperature for 5 hours. Five hours later, the disappearance of GA08 was confirmed at T. Then, the solution was cooled to 0 ° C., and a saturated aqueous sodium hydrogen carbonate solution was added dropwise to stop the reaction.
- reaction solution was extracted three times with ethyl acetate, and the combined extracts were washed with 1M hydrochloric acid and brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered and the filtrate was concentrated. The solid obtained here was separated and purified by column chromatography to obtain GA09 (1.87 mmo 1, yield 99%).
- reaction solution was cooled to room temperature, the solvent was distilled off under reduced pressure, 6M hydrochloric acid (12 ml) was added, and the mixture was heated under reflux for 5 hours.
- the reaction solution was cooled to 0 and filtered, and the filtrate was washed with water and dried.
- reaction solution was extracted three times with getyl ether, and the combined extracts were washed twice with 1 M hydrochloric acid, once with brine, and dried over anhydrous sodium sulfate. After drying, filtration was performed, and the solid obtained by concentrating the filtrate was recrystallized twice with toluene to obtain GA16 (12. Ommo 1., 63% yield).
- the solid content was obtained by operating GA 28 obtained in Synthesis Example 16 in the same manner as in Synthesis Example 12. The obtained solid was recrystallized from ethanol to obtain GA 29 (1.75 mmo 1., yield 72%).
- the extract was washed with a saturated aqueous solution of sodium bicarbonate and a saturated aqueous solution of sodium chloride, and then dried over anhydrous sodium sulfate. After dewatering, the mixture is filtered, the solvent in the filtrate is distilled off under reduced pressure, and the residue is crystallized from water. GB 08 (7.57 mmo 1, yield 28%) was obtained.
- 1,4-dioxane was distilled off under reduced pressure, dichloromethane was added, and the mixture was washed with 1 M hydrochloric acid and a saturated aqueous solution of sodium chloride, and dried over anhydrous sodium sulfate.
- BB r 3 was added dropwise (18mmo l., Jikurorome Tan solution of 1 molar). After the dropwise addition, the mixture was stirred at room temperature for 8.5 hours, cooled to 0 again, and the reaction was stopped by adding 120 ml of water.
- tetrahydrofuran (20 ml) and diisopropylamine (3 Ommo 1.) were added and stirred at 0. Thereafter, n-BuLi (3 Ommo 1.) was added dropwise over 5 minutes, and the mixture was stirred for 30 minutes. This was cooled to ⁇ 78 ° C., and Hexamethyl phos phoramide (HMPA; 5.0 ml) and isobutyric acid methyl ester (30. lmmo 1.) were added dropwise over 5 minutes.
- HMPA Hexamethyl phos phoramide
- TMS C1, 35.4 mmo 1. Trimethy1si1y1ch1 choride
- the reaction solution was extracted three times with a jet filter, and the combined extracts were washed with brine and dried over anhydrous sodium sulfate. After drying, filtration and removal of the solvent from the filtrate, distillation under reduced pressure (1600 Pa, 69-71 ° C) gave silyl enolate MK01 represented by the following formula (20).
- MK02 was obtained in the same manner as in Synthesis Example 40 except that t-Butyldimetlhylsylcyloride (TBSC 1) was used instead of TMS C1.
- TBSC 1 t-Butyldimetlhylsylcyloride
- the imine Ml 01 represented by the following formula (21) was synthesized with Benz a 1 dehyde and 2-Aminopeno1.
- the combined dichloromethane extract was washed successively with 1N hydrochloric acid and brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered, and the filtrate was concentrated to remove the methoxy group from the concentrate.
- the deprotected product was purified by column chromatography to obtain GC07 (the following formula (22), 1.4 g, 2.01 mM, 79%).
- GAl5 was synthesized from GAl4 by the same procedure as that for obtaining GAl5.
- the obtained crude product was recrystallized from dichloromethane-hexane, but contained impurities. From this, this was dissolved in ethanol and reprecipitated with 6N hydrochloric acid to obtain GC08 (the following formula (23), 0.9 g, 1.14 mM, 73%).
- one B is (2, 4, 6-triis op r opy l pheny l)-2, 2, one hyd r oxy — 1, 1, -din aph t hy 1 (GC 10 Synthesis of
- IR CHC 1 3) 2964, 2932, 2870, 1626, 1607, 1568, 1491, 1462, 1412, 1383, 1362, 1317, 1246, 1196, 1151, 1055, 959, 858, 847 cm- 1.
- GDO 2 was synthesized from GDO 1 in the same manner as in the synthesis of GCO 2. After the synthesis, it was reprecipitated from methanol and water to obtain GD02 (Formula (26), 1.35 mM, yield 57%).
- GD01 (3.48 mM) and dichloromethane (20 ml) were added in this order to a dried three-necked (100 ml) eggplant-shaped flask and stirred.
- bromine (8.53 mM) was added dropwise at room temperature over 16 minutes.
- the mixture was cooled to 0 ° C, and a saturated aqueous sodium sulfite solution was added to stop the reaction.
- the reaction solution was extracted three times with dichloromethane, and the dichloromethane extracts were combined, washed with brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered and the filtrate was concentrated to obtain GD03 (3.64 mM, quan t.).
- the reaction solution was extracted three times with dichloromethane, and the dichloromethane extracts were combined, washed with 1N hydrochloric acid and brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered, and the filtrate was concentrated. Ethanol (50 ml) and concentrated hydrochloric acid (12 ml) were added to the solid, and the mixture was refluxed for 10 hours. After refluxing, ethanol was distilled off from the reaction solution under reduced pressure, followed by extraction with dichloromethane three times. The dichloromethane extracts were combined, washed with brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered, and the filtrate was concentrated. The obtained solid was separated and purified by column chromatography to obtain GD05 (2.23 mM, 55%).
- GDO 6 was synthesized from GDO 5 by the same operation as the synthesis method of GC 02.
- the obtained crude product was subjected to column chromatography to remove the raw material (solvent: dichloromethane) and then separated and purified using methanol to obtain GD06 (Formula (27), 1.18 mM, 75%). .
- ⁇ (R) —3, 3 '-B is (4-nitro pheny l)-5, 5, 6, 6, 6, 7, 7, 7', 8, 8 '— oct ahyd ro— 1, 1' — din ap ht hy l
- GD10 was synthesized from GDO9 in the same manner as in the synthesis of GCO2, and the raw material was removed using column chromatography. The obtained solid was dissolved in methanol and purified by reprecipitation in 6N hydrochloric acid to obtain GD10 (the following formula (29), 0.4 g, 0.71 mM, 53%).
- —B is (4- trif 1 uor ome t hy 1 phe ny 1) -2, 2 '-di hyd roxy-5, 5 ,, 6, 6, 6', 7, 7 ', 8, 8'-oc t ahyd ro —Synthesis of 1,1'-di nap t hy 1 (GD11)
- IR CHC 1 3 3522, 2937, 2862, 1618, 1464, 1439, 1396, 1325, 1292, 1236, 1169, 1132, 1111, 1069, 1020, 845 cm - 1.
- ⁇ (R)-3, 3 '-B is (4- trifl uorome t hy l pheny l)-5, 5, 6, 6, 6, 7, 7, 8, 8, 8' oc ta hyd ro — 1, 1, 1
- GD12 was synthesized from GD11 in the same manner as in the method for synthesizing GCO2, and the raw materials were removed using column chromatography. The obtained solid was dissolved in methanol and purified by reprecipitation in 6N hydrochloric acid to obtain GD12 (the following formula (30), 0.5 g, 0.8 OmM, 66%).
- the entry 4 in Table 1 uses GAO 4 of 0.015 mmol.
- the entry 5 uses GAO 4 of 0.09 mmol.
- Fowowate 0.5ml / in.
- Example 2 The same operation as in Example 1 was performed except that GA11 was used instead of GA04. As a result are shown in Table 2.
- Example 4 shows the results of:.
- Entry Solvent dish is C time hr Yield %% ee
- reaction was stopped by adding a saturated aqueous solution of sodium hydrogen carbonate, and the temperature was raised to room temperature.
- the reaction mixture was filtered using celite, and extracted three times with ethyl acetate.
- the ethyl acetate layer was washed with 1M hydrochloric acid and a saturated sodium chloride aqueous solution, and dehydrated with anhydrous sodium sulfate.
- Example 9 The same operation as in Example 9 was performed except that the ratio between MI 01 and GC 02 was changed (Entry 1 is the same condition as Entry 1 in Example 9). The results are shown in Table 9.
- Example 10 The same operation as in Example 9 was performed except that GC06 was used instead of GC02. Table 10 shows the solvent used, the reaction temperature and the reaction time, and the results (% e e).
- the reaction solution was filtered through celite, and extracted three times with ethyl acetate.
- the ethyl acetate extract was combined, washed sequentially with 1 N hydrochloric acid and brine, and dried over anhydrous sodium sulfate. After drying, the mixture was filtered and the filtrate was concentrated. Then, it was separated and purified by p-TLC to obtain a Mannich adduct (P 01).
- the determination of the optical purity was determined using a high performance liquid chromatograph.
- Asymmetric synthesis was performed in the same manner as in Example 12, except that GD02 was used instead of GC Q8. In addition, asymmetric synthesis was similarly performed using GD06, GD10 and GD12. Table 12 shows these results.
- an imine compound represented by the following formula (40) (Ar group is described in Table 17; for example, N-2-nitrobenzene 0.118 mM, GC 11 (0.035 mM) as a chiral Bronsted acid catalyst, and toluene (1 ml) were stirred at room temperature for 10 minutes. Thereafter, diisopropyl phosphite (0.173 mM) was added dropwise, and the mixture was stirred for 24 hours. Thereafter, the reaction was stopped by adding a saturated aqueous solution of sodium hydrogen carbonate.
- the asymmetric synthesis method using the catalyst for asymmetric synthesis of the present invention can be used as a synthesis method giving high optical purity.
- the asymmetric synthesis method of the present invention to an asymmetric Mannich reaction or the like, compounds used as pharmaceuticals and agricultural chemicals and compounds useful as intermediates for their synthesis can be obtained.
Description
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JP2005505846A JP4556869B2 (ja) | 2003-04-25 | 2004-04-20 | キラルなブレンステッド酸を触媒として用いる不斉合成方法 |
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---|---|---|---|---|
DE102005047341A1 (de) * | 2005-09-30 | 2007-04-12 | Studiengesellschaft Kohle Mbh | Verfahren zur organokatalytischen Transferhydrierung von Iminen |
JP2009191026A (ja) * | 2008-02-15 | 2009-08-27 | Japan Science & Technology Agency | 光学活性ピペリジン誘導体の製造方法 |
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Cited By (10)
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DE102005047341A1 (de) * | 2005-09-30 | 2007-04-12 | Studiengesellschaft Kohle Mbh | Verfahren zur organokatalytischen Transferhydrierung von Iminen |
US7847124B2 (en) | 2007-07-20 | 2010-12-07 | Green Formula Co., Ltd. | Alanine racemase chiral binaphthol derivative with powerful hydrogen bond donor, and optical resolution and optical transformation methods using the same |
US8193370B2 (en) | 2007-07-20 | 2012-06-05 | Aminolux Co., Ltd. | Alanine racemase chiral binaphthol derivative with powerful hydrogen bond donor, and optical resolution and optical transformation methods using the same |
JP2009191026A (ja) * | 2008-02-15 | 2009-08-27 | Japan Science & Technology Agency | 光学活性ピペリジン誘導体の製造方法 |
WO2010098193A1 (ja) * | 2009-02-24 | 2010-09-02 | 国立大学法人名古屋大学 | β-アミノカルボニル化合物の製法及びリチウムビナフトラート錯体 |
JP2014514273A (ja) * | 2011-03-07 | 2014-06-19 | ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | 2,2−置換1,1−ビ−2−ナフトール触媒の存在下での不斉メチルアリル化方法 |
WO2014014035A1 (ja) * | 2012-07-19 | 2014-01-23 | 国立大学法人名古屋大学 | ピロリン酸エステル化合物、ビスリン酸エステル化合物及び触媒 |
JPWO2014014035A1 (ja) * | 2012-07-19 | 2016-07-07 | 国立大学法人名古屋大学 | ピロリン酸エステル化合物、ビスリン酸エステル化合物及び触媒 |
JP2021042154A (ja) * | 2019-09-10 | 2021-03-18 | 帝人株式会社 | ビナフタレン骨格を有する化合物の製造方法 |
JP7303076B2 (ja) | 2019-09-10 | 2023-07-04 | 帝人株式会社 | ビナフタレン骨格を有する化合物の製造方法 |
Also Published As
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US20060276329A1 (en) | 2006-12-07 |
CN100410234C (zh) | 2008-08-13 |
JPWO2004096753A1 (ja) | 2006-07-13 |
EP1623971A1 (en) | 2006-02-08 |
JP4556869B2 (ja) | 2010-10-06 |
US7517828B2 (en) | 2009-04-14 |
CN1780810A (zh) | 2006-05-31 |
EP1623971A4 (en) | 2006-11-08 |
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