CN109293569A - A method of the amine reaction that turns that no catalyst participates in prepares carboxamides derivatives - Google Patents

A method of the amine reaction that turns that no catalyst participates in prepares carboxamides derivatives Download PDF

Info

Publication number
CN109293569A
CN109293569A CN201811327786.2A CN201811327786A CN109293569A CN 109293569 A CN109293569 A CN 109293569A CN 201811327786 A CN201811327786 A CN 201811327786A CN 109293569 A CN109293569 A CN 109293569A
Authority
CN
China
Prior art keywords
rotamer
reaction
major rotamer
minor
major
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811327786.2A
Other languages
Chinese (zh)
Other versions
CN109293569B (en
Inventor
龚行
尹嘉雯
蔡昌群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiangtan University
Original Assignee
Xiangtan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiangtan University filed Critical Xiangtan University
Priority to CN201811327786.2A priority Critical patent/CN109293569B/en
Publication of CN109293569A publication Critical patent/CN109293569A/en
Application granted granted Critical
Publication of CN109293569B publication Critical patent/CN109293569B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D217/00Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
    • C07D217/02Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines
    • C07D217/04Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines with hydrocarbon or substituted hydrocarbon radicals attached to the ring nitrogen atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/02Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
    • C07C233/03Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to hydrogen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/16Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • C07C233/17Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
    • C07C233/18Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44Iso-indoles; Hydrogenated iso-indoles
    • C07D209/46Iso-indoles; Hydrogenated iso-indoles with an oxygen atom in position 1
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/06Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D211/08Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms
    • C07D211/10Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms
    • C07D211/16Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms with acylated ring nitrogen atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/18Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof
    • C07D295/182Radicals derived from carboxylic acids
    • C07D295/185Radicals derived from carboxylic acids from aliphatic carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D495/00Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
    • C07D495/02Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D495/04Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Turn amine reaction the invention discloses a kind of teritary amide of the low reaction activity of no catalyst or solvent and aliphatic amine come the method that synthesizes carboxamides derivatives.This method has obtained the carboxamides derivatives of high yield directly with n,N-Dimethylformamide (DMF) for formoxyl source.This method has raw material and acylating reagent cheap and easy to get, reaction yield height, single step reaction, at low cost, reaction selectivity height, simple operation and other advantages.It is big to overcome the prior art such as reaction reagent toxicity, needs, by-product more the defects of more using different type catalyst, synthetic method higher cost, reaction step.

Description

Method for preparing formamide derivative through amine transfer reaction without participation of catalyst
Technical Field
The invention relates to a method for preparing formamide derivatives through a catalyst-free and solvent-free amine transfer reaction of tertiary amide and fatty amine, belonging to the field of medical intermediate synthesis and fine organic synthesis.
Technical Field
Formamide derivatives are one of important organic compounds, and are widely present in bioactive molecules (such as the following molecular structural formula), organic synthetic intermediates and functional polymer materials [ a.r.kiniss, nat.commun.2017,8,14865; d.j.c. Constable, Green chem.2007,9,411; v.r. pattabiiraman1, j.w. bode, nature2011,480, 471; C. W.Cheung, J. -A.Ma, X.Hu, J.Am.chem.Soc.2018,140,6789 ]. Various metals and protonic acids have been used as catalysts for the synthesis of formamide derivatives, such as palladium, ruthenium, gold, indium, cerium, copper, supported sulfuric acid, ionic liquids, etc. [ d.w. Gu, x.x.guo, Tetrahedron 2015,71, 9117; m.nirmala, g.prakash, p.viswanathamurthi, j.g. Malecki, j.mol.catal.a: chem.2015,403, 15; n.shah, e.grave, d.v.jawale, e.doris, n.n.i.namboothiri, ChemCatChem 2014,6, 2201; J. king, d.o.jang, Synlett 2010,2010,1231; s, m.sajadi, m.maham, a.rezaei, lett.org.chem.2014,11, 49; h.q.liu, j.liu, y.h.zhang, c.d.shao, j.x.yu, chi.chem.lett.2015, 26, 11; s.rasheed, d.n.rao, a.s.reddy, r.shankar, p.das, rscadv.2015,5,10567; chen, r.fu, w.chai, h.zheng, l.sun, q.lu, r.yuan, Tetrahedron2014,70,2237 ]. However, these methods have problems such as the use of a toxic formylation reagent, the use of a different type of catalyst, and the use of a large amount of by-products. Therefore, the development of a new method for synthesizing the formamide derivative, which has the advantages of simple and easily-obtained raw materials, simple operation and low cost, has important theoretical significance and application value.
Disclosure of Invention
Aiming at the defects of the existing method for synthesizing formamide derivatives, such as the use of toxic formylation reagents, the need of using different types of catalysts, more byproducts and the like, the invention aims to provide a method for preparing formamide derivatives by non-catalytic and solvent-free transamination reaction, which directly uses tertiary amide with low reaction activity and fatty amine to prepare formamide derivatives. The method directly uses cheap N, N-Dimethylformamide (DMF) as a formyl group source, and realizes the amine transfer reaction of various primary amines and secondary amines under the conditions of no catalyst and no solvent, so the method has good application prospect in the field of synthesis and application of formamide derivatives.
In order to achieve the technical purpose, the invention provides a method for preparing formamide derivatives by a catalyst-free and solvent-free amine transfer reaction, which comprises the following steps: under the protective atmosphere, fatty amine in a formula 1 and DMF react in one pot to obtain formamide derivatives in a formula 2;
wherein,
r1 and R2 are independently selected from hydrogen or other substituents.
In a preferred embodiment, the fatty amine of formula 1 is 1,2,3, 4-tetrahydroisoquinoline, 6-methoxy-1, 2,3, 4-tetrahydroisoquinoline, 7-bromo-1, 2,3, 4-tetrahydroisoquinoline, 4,5,6, 7-tetrahydrothiophene [3,2-c ] pyridine hydrochloride, isoindoline, N-phenylpiperazine, 4-phenylpiperidine, N-methyl-N- (4-trifluoromethyl) benzylamine, N-methyl-4-methoxybenzylamine, N-methylbenzylamine, N-methyl-1-methylamine, fluoxetine, benzylamine, 2-phenylethylamine, 3-phenyl-1-propylamine, 3, 4-dimethoxyphenylethylamine, a salt thereof, a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable salt thereof, Dodecyl primary amine.
In a preferable scheme, under the protective atmosphere, the aliphatic amine shown in the formula 1 and DMF react at 130-150 ℃ in one step under the condition of no catalyst and no solvent to obtain the formamide derivative shown in the formula 2. The substituted amine is 0.5-1.0 mmol, DMF is 1.0-2.5 mmol, and the 1,2,3, 4-tetrahydroisoquinoline: the molar ratio of DMF is 1: (1-5). By controlling the reaction temperature and the molar ratio of the reactants within an appropriate range, a formamide derivative is produced.
In a further preferred embodiment, the aliphatic amine suitable for the preparation of the carboxamide derivative is 1,2,3, 4-tetrahydroisoquinoline, 6-methoxy-1, 2,3, 4-tetrahydroisoquinoline, 7-bromo-1, 2,3, 4-tetrahydroisoquinoline, 4,5,6, 7-tetrahydrothiophene [3,2-c ] pyridine hydrochloride, isoindoline, N-phenylpiperazine, 4-phenylpiperidine, N-methyl-N- (4-trifluoromethyl) benzylamine, N-methyl-4-methoxybenzylamine, N-methylbenzylamine, N-methyl-1-naphthylmethylamine, fluoxetine, benzylamine, 2-phenylethylamine, 3-phenyl-1-propylamine, 3, 4-dimethoxyphenethylamine and dodecyl primary amine. The fatty amines are converted into the corresponding formamide derivatives by formylation, such as N-formyl-1, 2,3, 4-tetrahydroisoquinoline, N-formyl-6-methoxy-1, 2,3, 4-tetrahydroisoquinoline, N-formyl-7-bromo-1, 2,3, 4-tetrahydroisoquinoline, N-formyl-4, 5,6, 7-tetrahydrothieno [3,2-c ] pyridine hydrochloride, N-formyl isoindoline, N-formyl-N ' -phenylpiperazine, N-formyl-4-phenylpiperidine, N-formyl-N ' -methyl-4-methoxybenzylamine, N-formyl-N ' -methylbenzylamine, N-formyl-N '-methylphenethylamine, N-formyl-N' -methyl-1-naphthylamine, N-formyl fluoxetine, N-formyl benzylamine, N-formyl-2-phenylethylamine, N-formyl-3-phenyl-1-propylamine, N-formyl dodecyl primary amine and N-formyl-3, 4-dimethoxyphenylethylamine.
In a more preferable scheme, the aliphatic amine in the formula 1 reacts with DMF at 150 ℃ in one pot under a protective atmosphere to obtain the formamide derivative in the formula 2. 1.0mmol of fatty amine, 2.5mmol of DMF, and the molar ratio of the fatty amine to the DMF is 1:2.5, the reaction time is 24 h.
The reaction equation in the synthesis of the formamide derivative of the invention is as follows.
Based on a large number of experimental summaries and with reference to previous literature reports, the present invention proposes the following rational reaction mechanism. The substituted amine and DMF are used as raw materials for specific description. Firstly, hydrogen in amine and a carbonyl group of DMF form a hydrogen bond and activate the carbonyl group to obtain (i), then lone pair electrons on nitrogen attack the carbonyl group of (i) to obtain an intermediate (ii), and then the intermediate (ii) is cracked again to obtain a product, fatty amine and ammonia gas. The aliphatic amine was then reacted with DMF until complete consumption and the reaction was terminated.
According to the technical scheme, the aliphatic amine is dissolved in DMF, the solution is placed into an oil bath kettle at a set temperature under the protection of argon, the reaction is carried out under the condition of sealing by magnetic stirring, after the reaction is carried out for a set time, a reaction tube is cooled, then 15mL of water is added for dilution, and extraction is carried out for 3 times by ethyl acetate, wherein each time is 15 mL. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (0-1: 3) as an eluent to obtain a pure product.
Weighing raw materials according to the aromatic amine of 0.5-1.0 mmol (based on the aromatic amine). Dissolving the substances in 2.5-5.0 mmol of DMF, and stirring and reacting for 24-96 hours at 150 ℃ under the protection of inert gas. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (0-1: 3) as an eluent to obtain a pure product.
Compared with the prior art, the technical scheme of the invention has the following advantages and effects:
the technical scheme of the invention realizes the amine transfer reaction of aliphatic amine and DMF for the first time under the condition of no catalyst and no solvent, and the formamide derivative with high yield is obtained. The method has the advantages of cheap and easily obtained raw materials and acylating reagent, high reaction yield, one-step reaction, low cost, high reaction selectivity, simple operation and the like. The defects of high toxicity of reaction reagents, need of using different types of catalysts, higher cost of the synthesis method, more reaction steps, more byproducts and the like in the prior art are overcome.
Drawings
FIG. 1 shows the product obtained in example 11H NMR chart;
FIG. 2 shows the product obtained in example 113C NMR chart;
FIG. 3 shows the product obtained in example 111H NMR chart;
FIG. 4 shows the product obtained in example 1113C NMR chart.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples and the accompanying drawings. The procedures, conditions, reagents, test methods and the like for carrying out the present invention are general and common general knowledge in the art, and the present invention is not particularly limited, except for those specifically mentioned below.
Example 1
1,2,3, 4-tetrahydroisoquinoline (128. mu.L, 1.0mmol) and a stirring pellet were put into a reaction tube, and after replacing the inert gas, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 24 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow oil, 74% yield.1H NMR(400 MHz,CDCl3)δ8.25(minor rotamer,s,0.36H),8.19(major rotamer,s,0.64H),7.22–7.08(m,4H), 4.68(major rotamer,s,1.24H),4.54(minor rotamer,s,0.75H),3.78(minor rotamer,t,J=6.2Hz, 0.74H),3.64(major rotamer,t,J=5.8Hz,1.27H),2.92–2.85(m,2H);13C NMR(100MHz, CDCl3)δ161.6(major rotamer),161.1(minor rotamer),134.3(minorrotamer),133.4(major rotamer),132.1(minor rotamer),131.7(major rotamer),129.1(minor rotamer),128.8(major rotamer),127.0,126.6–126.4(m),125.8,47.2(minorrotamer),43.1(major rotamer),42.2(major rotamer),37.9(minor rotamer),29.6(major rotamer),27.8(minor rotamer);IR(neat)3151,3025, 2931,2862,1672,1584,1498,1439,1400,1343,1318,1282,1228,1197,1164,1109,1049,930, 882,814,751,710,675,606,477cm-1;HRMS(ESI):m/z[M+Na]+calcd for C10H11NNaO 184.0733,found184.0733.
Example 2
6-methoxy-1, 2,3, 4-tetrahydroisoquinoline (81.6mg,0.5mmol) and a stirrer were put into a reaction tube, and after replacing the inert gas, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. Placing the reaction tube in a 150 ℃ oil bath reaction kettle, and stirring for reaction for 96 hours; after cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow solid, m.p. 63-64 deg.C, 74% yield.1HNMR(400MHz,CDCl3)δ8.22(minor rotamer,s,0.40H),8.17(major rotamer,s, 0.60H),7.04–6.99(m,1H),6.78–6.74(m,1H),6.65(d,J=10.0Hz,1H),4.60(major rotamer,s,1.24H),4.47(minor rotamer,s,0.77H),3.77–3.73(m,3.76H),3.61(major rotamer,t,J=5.8Hz, 1.24H),2.87–2.81(m,2H);13C NMR(100MHz,CDCl3)δ161.5(major rotamer),161.1(minor rotamer),158.4(minor rotamer),158.1(major rotamer),135.6(minorrotamer),134.7(major rotamer),127.6(major rotamer),126.8(minor rotamer),124.3(minor rotamer),123.7(major rotamer),113.6(minor rotamer),113.5(majorrotamer),112.9(major rotamer),112.7(minor rotamer),55.2(s),46.8(minorrotamer),43.1(major rotamer),41.7(major rotamer),37.8(minor rotamrer),29.9(major rotamer),28.2(minor rotamer);IR(neat)3140,1672,1612,1508,1402, 1312,1277,1262,1241,1119,1036,529cm-1;HRMS(ESI):m/z[M+HCO2H-H]calcd for C12H14NO4236.0917,found 236.0921.
Example 3
7-bromo-1, 2,3, 4-tetrahydroisoquinoline (212.1mg,1.0mmol) and a stirrer were placed in a reaction tube, and after the inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 24 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow solid, mp 58-60 deg.C, 93% yield.1HNMR(400MHz,CDCl3)δ8.24(minor rotamer,s,0.37H),8.19(major rotamer,s, 0.63H),7.34–7.26(m,2H),7.02(t,J=8.8Hz,1H),4.66(major rotamer,s,1.31H),4.52(minorrotamer,s,0.72H),3.78(minor rotamer,t,J=6.2Hz,0.72H),3.65(major rotamer,t,J=5.8Hz, 1.32H),2.86(major rotamer,t,J=5.8Hz,1.28H),2.82(minor rotamer,t,J=6.0Hz,0.80H);13C NMR(100MHz,CDCl3)δ161.6(major rotamer),161.0(minor rotamer),134.2(minor rotamer), 133.8(major rotamer),133.3(minor rotamer),132.4(majorrotamer),130.8(minor rotamer), 130.5(major rotamer),130.1(minor rotamer),129.7(major rotamer),129.4(major rotamer), 128.7(minor rotamer),120.2(majorrotamer),119.9(minor rotamer),46.8(minor rotamer),42.9 (major rotamer),41.8(major rotamer),37.7(minor rotamer),29.2(major rotamer),27.4(minor rotamer);IR(neat)3140,1672,1402,1191,1157,1116,1075,1051,932,829,531cm-1;HRMS (ESI):m/z[M+NH4]+calcd for C10H14BrN2257.0284,found 257.0275.
Example 4
4,5,6, 7-tetrahydrothiophene [3,2-c ]]Pyridine hydrochloride (139.2mg,1.0mmol) and a stirring bar were placed in a reaction tube, after inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube is put in an oil bath at 150 DEG CThe reaction was stirred in the kettle for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow oily liquid, 89% yield.1HNMR(400MHz,CDCl3)δ8.24(minor rotamer,s,0.38H),8.20(major rotamer,s, 0.62H),7.17–7.15(m,1H),6.80(t,J=4.4Hz,1H),4.60(major rotamer,s,1.28H),4.47(minorrotamer,s,0.74H),3.86(minor rotamer,t,J=5.8Hz,0.74H),3.69(major rotamer,t,J=5.8Hz, 1.28H),2.93(major rotamer,t,J=5.8Hz,1.26H),2.88(minor rotamer,t,J=5.8Hz,0.75H);13C NMR(100MHz,CDCl3)δ161.7(major rotamer),161.4(minor rotamer),133.8(minor rotamer), 132.1(major rotamer),130.8(major rotamer),130.7(minorrotamer),125.0(major rotamer), 124.3(minor rotamer),123.8(s),45.7(minorrotamer),43.7(major rotamer),40.6(major rotamer),37.9(minor rotamer),25.8(major rotamer),24.4(minor rotamer);IR(neat)3129,1705, 1670,1433,1402,1314,1176,1043,1018,824,706,593,567cm-1;HRMS(ESI):m/z[M+NH4]+calcd for C8H13N2SO185.0743,found 185.0735.
Example 5
Isoindoline (58. mu.L, 0.5mmol) and a stir-particle were placed in a reaction tube, inert gas was replaced, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Black oily liquid, yield 80%.1H NMR(400MHz, CDCl3)δ8.42(s,1H),7.31–7.27(m,4H),4.89(s,2H),4.76(s,2H);13C NMR(100MHz,CDCl3) δ161.5(s),135.9(s),135.2(s),128.0(s),127.7(s),123.2(s),122.8(s),51.4(s),49.8(s);IR(neat) 3140,1668,1465,1402,1159,1092,747,608,531,416cm-1;HRMS(ESI):m/z[M+Cl]calcd for C9H9ClNO 182.0367,found 182.0368.
Example 6
N-phenylpiperazine (161. mu.L, 1.0mmol) and a stir-bar were placed in a reaction tube, the inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow solid, mp 86-87 deg.C, 80% yield.1H NMR(400MHz,CDCl3)δ8.08(s,1H),7.30–7.27(m,2H),6.94–6.90(m,3H),3.69(t,J=5.2Hz, 2H),3.51(t,J=5.0Hz,2H),3.15(dt,J=15.2,5.2Hz,4H);13C NMR(100MHz,CDCl3)δ160.6 (s),150.8(s),129.1(s),120.7(s),116.9(s),50.3(s),49.2(s),45.4(s),39.8(s);IR(neat)3131, 1664,1402,1152,1115,529cm-1;HRMS(ESI):m/z[M+K]+calcd for C11H14N2KO229.0738, found 229.0742.
Example 7
4-phenylpiperidine (80.7mg,1.0mmol) and a stirring pellet were put into a reaction tube, and after replacing the inert gas, DMF (193. mu.L, 2.5mmol) was added to seal the reaction tube. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 48 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. Mixing the extractive solutions, drying with anhydrous sodium sulfate, filtering, and concentrating the filtrate under reduced pressureAfter condensation, the mixture was extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow solid, mp 98-99 deg.C, 91% yield.1H NMR(400MHz,CDCl3)δ8.06(s,1H),7.31(t,J=7.4Hz,2H),7.24–7.18(m,3H),4.56(d,J= 13.6Hz,1H),3.73(d,J=13.2Hz,1H),3.19(td,J=12.9,2.6Hz,1H),2.81–2.67(m,2H),1.92(t, J=15.8Hz,2H),1.67–1.54(m,2H);13C NMR(100MHz,CDCl3)δ160.8(s),144.8(s),128.5 (s),126.6(s),126.5(s),46.4(s),42.8(s),40.1(s),33.8(s),32.3(s);IR(neat)3140,1675,1653, 1402,1170,1064,759,699,529cm-1;HRMS(ESI):m/z[M+Na]+calcd for C12H15NNaO212.1046,found 212.1048.
Example 8
N-methyl-N- (4-trifluoromethyl) benzylamine (85. mu.L, 0.5mmol), and one stir-bar were placed in the reaction tube, after inert gas was replaced, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow oil, yield 70%.1H NMR(400MHz,CDCl3)δ8.31(minor rotamer,s,0.48H),8.19(major rotamer,s,0.52H),7.63(dd,J= 18.2,8.2Hz,2.0H),7.36(dd,J=12.6,8.2Hz,2H),4.59(major rotamer,s,1.07H),4.48(minor rotamer,s,0.96H),2.89(major rotamer,s,1.64H),2.80(minorrotamer,s,1.42H);13C NMR(100 MHz,CDCl3)δ162.9(minor rotamer),162.8(majorrotamer),140.2(major rotamer),140.0 (minor rotamer),130.3(major rotamer,dd,J=51.2,32.3Hz),128.5(major rotamer),127.7 (minor rotamer),126.0(minorrotamer,q,J=3.7Hz),125.8(major rotamer,q,J=3.7Hz),125.5 (major rotamer),125.3(minor rotamer),122.8(major rotamer),122.6(minor rotamer),53.1 (minorrotamer),47.5(major rotamer),34.3(major rotamer),29.7(minor rotamer);19F NMR(377 MHz,CDCl3)δ-62.53(major rotamer,s),-62.58(minor rotamer,s);IR(neat)3140,2361,2343, 1675,1621,1402,1327,1165,1113,1068,1019,848,818,527cm-1;HRMS(ESI):m/z [M+NH4]+calcd for C10H12FN2O 235.1053,found 235.1067.
Example 9
N- (4-methoxybenzyl) -N-methylamine (78. mu.L, 0.5mmol), and a stirring pellet were placed in a reaction tube, and after inert gas was replaced, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oil, yield 99%.1H NMR (400MHz,CDCl3)δ8.22(major rotamer,s,0.58H),8.08(minor rotamer,s,0.42H),7.14(minorrotamer,d,J=8.4Hz,0.86H),7.08(major rotamer,d,J=8.4Hz,1.15H),6.86–6.81(m,2H), 4.41(minor rotamer,s,0.86H),4.28(major rotamer,s,1.20H),3.76(majorrotamer,s,1.78H), 3.75(minor rotamer,s,1.23H),2.78(minor rotamer,s,1.30H),2.71(major rotamer,s,1.75H);13C NMR(100MHz,CDCl3)δ162.5(major rotamer),162.4(minor rotamer),159.3(major rotamer), 159.0(minor rotamer),130.3,129.5(minorrotamer),128.7(major rotamer),128.0(minor rotamer),127.5(major rotamer),114.1(major rotamer),113.9(minor rotamer),113.5,55.2(majorrotamer,d,J=4.4Hz),52.8(minor rotamer),47.0(major rotamer),44.7(minor rotamer),33.8 (minorrotamer),29.1(major rotamer);IR(neat)3140,1671,1612,1515,1402,1303,1249,1176,1079,1032,846,814,559,522cm-1;HRMS(ESI):m/z[M+NH4]+calcd for C10H17N2O2197.1285,found 197.1304.
Example 10
N-methylbenzylamine (130. mu.L, 1.0mmol) and a stirring pellet were placed in a reaction tube, and after replacing the inert gas, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow oily liquid, yield 80%.1H NMR(400 MHz,CDCl3)δ8.29(major rotamer,s,0.57H),8.17(minor rotamer,s,0.43H),7.40–7.20(m,5H), 4.53(minor rotamer,s,0.84H),4.40(major rotamer,s,1.16H),2.85(minor rotamer,s,1.30H), 2.79(major rotamer,s,1.75H);13C NMR(100MHz,CDCl3)δ162.8(majorrotamer),162.6 (minor rotamer),135.9(minor rotamer),135.6(major rotamer),128.9(major rotamer),128.7 (minor rotamer),128.2(major rotamer),128.1(minorrotamer),127.6(minor rotamer),127.4 (major rotamer),53.5(major rotamer),47.7(minor rotamer),34.1(minor rotamer),29.4(major rotamer);IR(neat)3122,1664,1402,1379,1140,1066,1081,705,529cm-1;HRMS(ESI):m/z [M+CH3CO2H-H]-calcd forC11H14NO3208.0968,found 208.0971.
Example 11
N-methylphenethylamine (75. mu.L, 0.5mmol) and a stirring bar were placed in a reaction tube, after replacing inert gas, DMF (193. mu.L, 2.5mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with ethyl acetate eachAnd 15mL times. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow oily liquid, yield 99%.1H NMR(400 MHz,CDCl3)δ8.02(minor rotamer,s,0.37H),7.80(major rotamer,s,0.63H),7.33–7.22(m,4H), 7.14(d,J=7.2Hz,1H),3.56(minor rotamer,t,J=7.6Hz,0.79H),3.47(major rotamer,t,J=7.0Hz 1.25H),2.90–2.82(m,5H);13C NMR(100MHz,CDCl3)δ162.6(major rotamer),162.4(minor rotamer),138.5(minor rotamer),137.6(major rotamer),128.7(majorrotamer),128.7 (minor rotamer),128.6(major rotamer),128.5(minor rotamer),126.7(major rotamer),126.4 (minor rotamer),51.2(major rotamer),45.9(minorrotamer),35.0(minor rotamer),34.7(major rotamer),33.1(minor rotamer),29.7(minor rotamrer);IR(neat)3140,1666,1402,1152,529cm-1; HRMS(ESI):m/z[M+H]+calcdfor C10H13NO 164.1070,found 164.1071.
Example 12
N-methyl-1-naphthylamine (167. mu.L, 1.0mmol) and a stirrer were placed in a reaction tube, after inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oily liquid, yield 86%.1H NMR(400 MHz,CDCl3)δ8.38(minor rotamer,s,0.4H),8.18(major rotamer,s,0.61H),8.10(d,J=8.0Hz,0.61H),7.91–7.82(m,2.46H),7.55–7.30(m,4H),4.98(major rotamer,s,1.20H),4.87(minor rotamer,s,0.77H),2.85(minor rotamer,s,1.20H),2.74(major rotamer,s,1.78H);13C NMR(100 MHz,CDCl3)δ163.3(minor rotamer),162.4(major rotamer),133.9,131.6,131.3(major rotamer),131.3(minor rotamer),131.1(minor rotamer),131.0(major rotamer),129.2(minor rotamer),129.0(major rotamer),128.9(minorrotamer),128.7(major rotamer),127.8(minor rotamer),126.8(minor rotamer),126.2(major rotamer),125.6(minor rotamer),125.2(minor rotamer),123.9(majorrotamer),122.4(minor rotamer),51.1(minor rotamer),45.9(major rotamer),34.1(major rotamer),30.1(minor rotamer);IR(neat)3140,1672,1510,1402,1258, 1161,1081,803,779,529cm-1;HRMS(ESI):m/z[M+H]+calcd for C13H14NO 200.1070,found200.1069.
Example 13
Fluoxetine (154.7mg,0.5mmol) and a stir-particle were placed in a reaction tube, after inert gas had been replaced, DMF (193. mu.L, 2.5mmol) was added and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oily liquid, yield 76%.1H NMR(400MHz, CDCl3)δ8.02(minor rotamer,s,0.41H),7.99(major rotamer,s,0.59H),7.43(d,J=8.8Hz,2H),7.37–7.27(m,5H),6.90–6.86(m,2H),5.20(minor rotamer,dd,J=8.8,4.4Hz,0.42H),5.14 (major rotamer,dd,J=8.8,4.0Hz,0.61H),3.59–3.52(major rotamer,m,1.42H),3.42–3.35 (minor rotamer,m,0.62H),2.94(minor rotamer,s,1.21H),2.90(majorrotamer,s,1.84H),2.27– 2.17(m,1.06H),2.15–2.04(m,1.15H);13C NMR(100MHz,CDCl3)δ162.7(major rotamer), 162.6(minor rotamer),160.1(minor rotamer),159.8(majorrotamer),140.4(minor rotamer), 139.8(major rotamer),129.0(major rotamer),128.8(minor rotamer),128.2(major rotamer), 128.0(minor rotamer),126.9–126.7(m),125.6(minor rotamer),125.5(major rotamer),123.3– 122.7(m),115.7(minorrotamer),115.6(major rotamer),78.1(minor rotamer),76.9(major rotamer),45.9(major rotamer),41.5(minor rotamer),36.9(major rotamer),35.8(minor rotamer),34.8(minor rotamer),29.5(major rotamer);19F NMR(377MHz,CDCl3)δ-61.52(minorrotamer, s);-61.59(major rotamer,s);IR(neat)3140,1675,1616,1519,1329,1251,1161,1113,1068,837, 703,527cm-1;HRMS(ESI):m/z[M+Na]+calcd for C18H18F3NNaO2360.1182,found 360.1178.
Example 14
Benzylamine (110. mu.L, 1.0mmol) and a stirrer were placed in a reaction tube, the inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 96 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) performing column chromatography on the crude product by using petroleum ether (1: 3) as an eluent to obtain a pure product. Yellow solid, m.p. 54-58 deg.C, 75% yield.1H NMR(400 MHz,CDCl3)δ8.25(major rotamer,s,0.87H),8.16(minor rotamer,d,J=12Hz,0.13H),7.35– 7.27(m,5H),6.08(br s,1H),4.48(major rotamer,d,J=6.0Hz,1.73H),4.41(minor rotamer,d,J=6.4Hz,0.34H);13C NMR(100MHz,CDCl3)δ164.7(minor rotamer),161.0(majorrotamer), 137.5(major rotamer),137.4(minor rotamer),128.9(minor rotamer),128.7(major rotamer), 127.9(minor rotamer),127.7(major rotamer),127.6(majorrotamer),126.9(minor rotamer),45.6 (minor rotamer),42.1(major rotamer);IR(neat)3140,1666,1402,699,526cm-1;HRMS(ESI): m/z[M+H]+calcd for C8H10NO136.0757,found 136.0747.
Example 15
2-phenethylamine (128.5. mu.L, 1.0mmol) and a stirrer were placed in a reaction tube, after inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 48 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oily liquid, yield 86%.1H NMR(400 MHz,CDCl3)δ8.10(major rotamer,s,0.84H),7.89(minor rotamer,d,J=12Hz,0.16H),7.32– 7.20(m,5H),5.83(br s,1H),3.59–3.46(m,2H),2.86–2.82(m,2H);13C NMR(100MHz,CDCl3) δ164.5(minor rotamer),161.2(major rotamer),138.4(major rotamer),137.5(minorrotamer), 128.8–128.6(m),126.8(minor rotamer),126.6(major rotamer),43.1(minorrotamer),39.1(major rotamer),37.6(minor rotamer),35.4(major rotamer);IR(neat)3140,1670,1402,1154,689,527 cm-1;HRMS(ESI):m/z[M+Na]+calcd for C9H11NNaO172.0733,found 172.0741.
Example 16
3-phenyl-1-propylamine (153. mu.L, 1.0mmol) and a stirring bar were placed in a reaction tube, and after replacing the inert gas, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 48 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oily liquid, yield 99%.1H NMR(400 MHz,CDCl3)δ8.13(major rotamer,s,0.82H),7.99(minor rotamer,d,J=12Hz,0.18H),7.32– 7.17(m,5H),6.04(br s,1H),3.31(major rotamer,q,J=6.8Hz,1.64H),3.20(minor rotamer,q,J =6.8Hz,0.36H),2.68–2.64(m,2H),1.89–1.82(m,2H);13C NMR(100MHz,CDCl3)δ164.8(minor rotamer),161.3(major rotamer),141.1(major rotamer),140.5(minorrotamer),128.5 (minor rotamer),128.4(major rotamer),128.3(major rotamer),126.2(minor rotamer),126.0 (major rotamer),41.0(minor rotamer),37.7(majorrotamer),33.0(major rotamer),32.4(minor rotamer),32.4(minor rotamer),31.0(major rotamer);IR(neat)3122,1666,1402,1154,1113,749, 701,529cm-1;HRMS(ESI):m/z[M+Na]+calcd for C10H13NNaO 186.0889,found 186.0897.
Example 17
3, 4-Dimethoxyphenethylamine (173. mu.L, 1.0mmol) and a stirrer were placed in a reaction tube, the inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 48 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Yellow oily liquid, yield 86%.1H NMR (400MHz,CDCl3)δ8.09(major rotamer,s,0.85H),7.87(minor rotamer,d,J=12Hz,0.15H), 6.79–6.65(m,3H),5.93(br s,1H),3.83(major rotamer,s,3.73H),3.82(minor rotamer,s,2.25H),3.51(major rotamer,q,J=6.4Hz,1.64H),3.41(minor rotamer,q,J=6.4Hz,0.36H),2.77–2.71 (m,2H);13C NMR(100MHz,CDCl3)δ164.5(minor rotamer),161.2(majorrotamer),148.9 (minor rotamer),148.8(major rotamer),147.7(minor rotamer),147.5(major rotamer),130.8 (major rotamer),130.0(minor rotamer),120.8(minorrotamer),120.5(major rotamer),111.8 (minor rotamer),111.7(major rotamer),111.3(minor rotamer),111.2(major rotamer),55.9(major rotamer),55.7(minorrotamer),43.2(minor rotamer),39.2(major rotamer),37.2(minor rotamer), 34.9(major rotamer);IR(neat)3140,3006,2941,2838,1668,1610,1593,1519,1467,1400,1265,1238,1195,1159,1142,1029,937,859,811,810,766,632cm-1;HRMS(ESI):m/z [M+H]+calcd for C10H16NO3210.1125,found 210.1122.
Example 18
The dodecylprimary amine (237.5. mu.L, 1.0mmol) and a stirring bar were placed in a reaction tube, after inert gas was replaced, DMF (386. mu.L, 5.0mmol) was added, and the reaction tube was sealed. The reaction tube was placed in a 150 ℃ oil bath reaction vessel and stirred for 48 hours. After cooling to room temperature, it was diluted with 15mL of water and extracted 3 times with 15mL of ethyl acetate. The combined extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and extracted with ethyl acetate: and (3) carrying out column chromatography on the crude product by using petroleum ether (1: 2) as an eluent to obtain a pure product. Grey solid, m.p. 33-35 ℃, 73% yield.1H NMR(400MHz,CDCl3)δ8.15(major rotamer,s,0.82H),8.03(minor rotamer,d,J=12Hz, 0.18H),5.63(br s,1H),3.28(major rotamer,q,J=6.8Hz,1.66H),3.20(minor rotamer,q,J=6.8Hz,0.44H),1.53–1.48(m,2H),1.29–1.24(m,18H),0.87(t,J=6.8Hz,3H);13C NMR(100MHz,CDCl3)δ164.7(minor rotamer),161.0(major rotamer),41.8(minor rotamer),38.2(major rotamer),31.9(major rotamer),31.2(minor rotamer),29.6–29.1(m),26.8(major rotamer),26.3 (minor rotamer),22.6,14.1;IR(neat)3122,1670,1401,1150,1113,529cm-1;HRMS(ESI):m/z [M+K]+calcd for C13H27NKO 252.1724,found 252.1724.
1-8 of control test group:
adding 1,2,3, 4-tetrahydroisoquinoline and DMF into a 25mL reaction vessel, introducing nitrogen for protection, heating for reaction, and taking nitroethane as an internal standard1H NMR quantitative analysis. The specific reaction conditions of each control test group are shown in Table 1。
As can be seen from the above table, the reaction temperature of 1,2,3, 4-tetrahydroisoquinoline and DMF was above 130 ℃. The optimum temperature is 150 ℃.
As can be seen from the above table, for 1,2,3, 4-four hydrogen isoquinoline reaction in 3 ~ 24 hours can be smoothly carried out. Moderate yields were obtained with a reaction time of 12 hours. The optimum reaction time is 24 hours.
It can also be seen from the above table that the choice of atmosphere also affects the yield of the reaction, and that good yields can be obtained with an air atmosphere. The most preferred atmosphere is argon.
From the above table, it can also be seen that the mole ratio of 1,2,3, 4-tetrahydroisoquinoline to DMF has a direct effect when the molar ratio of 1,2,3, 4-tetrahydroisoquinoline: DMF 1:1 (based on 1,2,3, 4-tetrahydroisoquinoline) gave low yields. When the molar ratio of the two is 1:5, the yield is improved. When the 1,2,3, 4-four hydrogen isoquinoline dosage is 1.0mmol, two molar ratio is 1:2.5, the best yield.

Claims (3)

1. A method for preparing formamide derivatives through amine transfer reaction without participation of a catalyst is characterized in that: under the atmosphere of argon, the aliphatic amine in the formula 1 reacts with DMF in one pot to obtain a formamide derivative in the formula 2;
wherein,
r1 and R2 are independently selected from hydrogen or other substituents.
2. The process according to claim 1 for the preparation of carboxamide derivatives by a catalyst-free, solvent-free transamination reaction, characterized in that: the fatty amine of the formula 1 is 1,2,3, 4-tetrahydroisoquinoline, 6-methoxy-1, 2,3, 4-tetrahydroisoquinoline, 7-bromo-1, 2,3, 4-tetrahydroisoquinoline, 4,5,6, 7-tetrahydrothiophene [3,2-c ] pyridine hydrochloride, isoindoline, N-phenylpiperazine, 4-phenylpiperidine, N-methyl-N- (4-trifluoromethyl) benzylamine, N-methyl-4-methoxybenzylamine, n-methylbenzylamine, N-methylphenethylamine, N-methyl-1-naphthylmethylamine, fluoxetine, benzylamine, 2-phenylethylamine, 3-phenyl-1-propylamine, 3, 4-dimethoxyphenylethylamine and dodecyl primary amine.
3. The process according to claim 1 for the preparation of carboxamide derivatives by a catalyst-free, solvent-free transamination reaction, characterized in that: the reaction is carried out in an argon atmosphere, and the aliphatic amine shown in the formula 1 and DMF react at 150 ℃ in one pot to obtain the formamide derivative shown in the formula 2. The aliphatic amine is 0.5-1.0 mmol, the DMF is 2.5-5.0 mmol, and the reaction time is 24-96 h.
CN201811327786.2A 2018-11-08 2018-11-08 Method for preparing formamide derivative through amine transfer reaction without participation of catalyst Active CN109293569B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811327786.2A CN109293569B (en) 2018-11-08 2018-11-08 Method for preparing formamide derivative through amine transfer reaction without participation of catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811327786.2A CN109293569B (en) 2018-11-08 2018-11-08 Method for preparing formamide derivative through amine transfer reaction without participation of catalyst

Publications (2)

Publication Number Publication Date
CN109293569A true CN109293569A (en) 2019-02-01
CN109293569B CN109293569B (en) 2021-08-06

Family

ID=65146850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811327786.2A Active CN109293569B (en) 2018-11-08 2018-11-08 Method for preparing formamide derivative through amine transfer reaction without participation of catalyst

Country Status (1)

Country Link
CN (1) CN109293569B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824692A (en) * 2019-03-14 2019-05-31 四川师范大学 The preparation method of thienopyridine heterocyclic compound and its derivative

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239953A (en) * 2002-09-12 2008-08-13 惠氏公司 Antidepressant arylpiperazine derivatives of heterocycle-fused benzodioxans
WO2014111031A1 (en) * 2013-01-17 2014-07-24 四川恒康发展有限责任公司 Triazine compound, pharmaceutical salt, isomer, or hydrate thereof, and pharmaceutical composition thereof
CN104710258A (en) * 2013-12-11 2015-06-17 中国科学院大连化学物理研究所 Formamide preparation method
CN107827816A (en) * 2017-11-27 2018-03-23 湘潭大学 A kind of method of graphene oxide catalysis formylation reaction synthesis carboxamides derivatives
CN107827817A (en) * 2017-11-27 2018-03-23 湘潭大学 A kind of method of molybdenum catalysis formylation reaction synthesis carboxamides derivatives
CN107892670A (en) * 2017-11-27 2018-04-10 湘潭大学 A kind of method of cobalt catalysis formylation reaction synthesis carboxamides derivatives
CN107986927A (en) * 2017-11-27 2018-05-04 湘潭大学 A kind of method of manganese catalysis formylation reaction synthesis carboxamides derivatives

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239953A (en) * 2002-09-12 2008-08-13 惠氏公司 Antidepressant arylpiperazine derivatives of heterocycle-fused benzodioxans
WO2014111031A1 (en) * 2013-01-17 2014-07-24 四川恒康发展有限责任公司 Triazine compound, pharmaceutical salt, isomer, or hydrate thereof, and pharmaceutical composition thereof
CN104710258A (en) * 2013-12-11 2015-06-17 中国科学院大连化学物理研究所 Formamide preparation method
CN107827816A (en) * 2017-11-27 2018-03-23 湘潭大学 A kind of method of graphene oxide catalysis formylation reaction synthesis carboxamides derivatives
CN107827817A (en) * 2017-11-27 2018-03-23 湘潭大学 A kind of method of molybdenum catalysis formylation reaction synthesis carboxamides derivatives
CN107892670A (en) * 2017-11-27 2018-04-10 湘潭大学 A kind of method of cobalt catalysis formylation reaction synthesis carboxamides derivatives
CN107986927A (en) * 2017-11-27 2018-05-04 湘潭大学 A kind of method of manganese catalysis formylation reaction synthesis carboxamides derivatives

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
AUDREY G.ROSS等: "Synthesis of ciprofloxacin dimers for evaluation of bacterial permeability in atypical chemical space", 《BIOORGANIC & MEDICINAL CHEMISTRY LETTERS》 *
DONGSIK YANG等: "Convenient N-formylation of amines in dimethylformamide with methyl benzoate under microwave irradiation", 《BULLETIN OF THE KOREAN CHEMICAL SOCIETY》 *
JUAN MA等: "Cobalt(II)‐Catalyzed N‐Acylation of Amines through a Transamidation Reaction", 《EUROPEAN JOURNAL OF ORGANIC CHEMISTRY》 *
JUAN MA等: "Mn(II)-Catalyzed N-Acylation of Amines", 《SYNTHESIS》 *
JUAN MA等: "N-formylation of amine using graphene oxide as a sole recyclable metal-free carbocatalyst", 《JOURNAL OF THE IRANIAN CHEMICAL SOCIETY》 *
SANTOSH KUMAR ADLA等: "Doubly prenylated tryptamines: cytotoxicity, antimicrobial activity and cyclisation to the marine natural product flustramine A", 《ORGANIC & BIOMOLECULAR CHEMISTRY》 *
郭清虎: "由芳醛与胺类化合物合成芳香酰胺的新方法", 《湖南大学硕士学位论文》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824692A (en) * 2019-03-14 2019-05-31 四川师范大学 The preparation method of thienopyridine heterocyclic compound and its derivative

Also Published As

Publication number Publication date
CN109293569B (en) 2021-08-06

Similar Documents

Publication Publication Date Title
CN107827816B (en) Method for synthesizing formamide derivative through graphene oxide catalytic formylation reaction
CN112125805B (en) Water-soluble magnolol derivative, preparation method of honokiol derivative and intermediate thereof, and related monohydroxy protected intermediate
CN109293569B (en) Method for preparing formamide derivative through amine transfer reaction without participation of catalyst
CN108623455B (en) Intermediate of anti-heart failure medicine
CN113416150A (en) Novel synthesis method of lobaplatin intermediate
CN110885292B (en) Synthesis method of beta-aminoalcohol compound
CN110078622B (en) Synthetic method of 4-ethoxy-1, 1,2,4,5, 6-hexahydro cyclobutane naphthaline-2-benzoate
CN107827817B (en) Method for synthesizing formamide derivative through molybdenum catalytic formylation reaction
CN108640884B (en) 2-morpholinone salt, preparation method thereof and preparation method of 2-morpholinone
CN106748966A (en) A kind of synthetic method of Ramipril key intermediate
CN107892670B (en) Method for synthesizing formamide derivative through cobalt-catalyzed formylation reaction
Wei et al. Synthesis of dinitrochalcones by using ultrasonic irradiation in the presence of potassium carbonate
CN115215814A (en) Synthetic method of isoxazolidine compounds
CN109265385B (en) Synthesis process of chiral catalyst
DE69804920T2 (en) Process for the preparation of furopyridine derivatives and intermediates
CN106380469A (en) Synthesis method of 1-aromatic carbonyl-2-aryl-3-ester imidazolone compounds
CN108383754B (en) Preparation method and application of aryl oxime ester compound
CN107986927A (en) A kind of method of manganese catalysis formylation reaction synthesis carboxamides derivatives
CN111777520A (en) Synthesis method of multi-substituted dimethylamino phenyl acetic acid compound
CN111747879A (en) Large-process synthesis method of erexib
CN109705014A (en) A kind of novel chiral oxidation amine ligand and preparation method thereof
CN109134351A (en) S-3-(4- aminophenyl) piperidines synthetic method
CN110963959B (en) Preparation method for synthesizing N-protected and unprotected 3-hydroxy-4, 4-dimethylpiperidine
CN111333528B (en) Synthesis method of multi-configuration O-phenyl-serine compound
CN111606824B (en) Beta-amino nitrile compound and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant