CN110655539A - 氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法 - Google Patents
氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法 Download PDFInfo
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- CN110655539A CN110655539A CN201910701039.9A CN201910701039A CN110655539A CN 110655539 A CN110655539 A CN 110655539A CN 201910701039 A CN201910701039 A CN 201910701039A CN 110655539 A CN110655539 A CN 110655539A
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- difluoromethyl
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- heterocyclic compound
- difluoromethylcyclohexane
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 150000002391 heterocyclic compounds Chemical class 0.000 title claims abstract description 11
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 11
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 10
- -1 difluoromethyl arene Chemical class 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 12
- MFKXQPWDBYCHGG-UHFFFAOYSA-N N[Rh]=C Chemical compound N[Rh]=C MFKXQPWDBYCHGG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims abstract description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002808 molecular sieve Substances 0.000 claims abstract description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 5
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 125000003545 alkoxy group Chemical group 0.000 claims description 7
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 7
- 125000003368 amide group Chemical group 0.000 claims description 5
- 125000004185 ester group Chemical group 0.000 claims description 5
- 125000003226 pyrazolyl group Chemical group 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 125000002541 furyl group Chemical group 0.000 claims description 3
- 125000004076 pyridyl group Chemical group 0.000 claims description 3
- 238000010898 silica gel chromatography Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 claims description 3
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- KGOFBYAEKGHAQG-UHFFFAOYSA-N methyl 2-(difluoromethyl)benzoate Chemical compound COC(=O)C1=CC=CC=C1C(F)F KGOFBYAEKGHAQG-UHFFFAOYSA-N 0.000 description 26
- JOCDQQMYNFSIRO-UHFFFAOYSA-N difluoromethylcyclohexane Chemical compound FC(F)C1CCCCC1 JOCDQQMYNFSIRO-UHFFFAOYSA-N 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 description 4
- CSJLBAMHHLJAAS-UHFFFAOYSA-N diethylaminosulfur trifluoride Chemical compound CCN(CC)S(F)(F)F CSJLBAMHHLJAAS-UHFFFAOYSA-N 0.000 description 4
- IVDFJHOHABJVEH-UHFFFAOYSA-N pinacol Chemical compound CC(C)(O)C(C)(C)O IVDFJHOHABJVEH-UHFFFAOYSA-N 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- DYFGYJGZUKRYKY-UHFFFAOYSA-N FC(F)[Zn] Chemical class FC(F)[Zn] DYFGYJGZUKRYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 description 2
- SPAFWNZVSWEPDV-UHFFFAOYSA-N 1-(difluoromethyl)-2-hexoxybenzene Chemical compound C(CCCCC)OC1=C(C=CC=C1)C(F)F SPAFWNZVSWEPDV-UHFFFAOYSA-N 0.000 description 1
- PVDKYODDVTUUOB-UHFFFAOYSA-N 1-(difluoromethyl)-2-hexoxycyclohexane Chemical compound CCCCCCOC1CCCCC1C(F)F PVDKYODDVTUUOB-UHFFFAOYSA-N 0.000 description 1
- AMSVWDFSTNMNTP-UHFFFAOYSA-N 1-(difluoromethyl)-2-phenylbenzene Chemical group FC(F)C1=CC=CC=C1C1=CC=CC=C1 AMSVWDFSTNMNTP-UHFFFAOYSA-N 0.000 description 1
- ZVHDLBNNVWRFIS-UHFFFAOYSA-N 1-(difluoromethyl)-3,5-dimethoxybenzene Chemical compound COC1=CC(OC)=CC(C(F)F)=C1 ZVHDLBNNVWRFIS-UHFFFAOYSA-N 0.000 description 1
- VRIXPQIYKDBHQU-UHFFFAOYSA-N 1-(difluoromethyl)-3,5-dimethoxycyclohexane Chemical compound COC1CC(CC(C1)OC)C(F)F VRIXPQIYKDBHQU-UHFFFAOYSA-N 0.000 description 1
- PXJGCOIUDPIBMY-UHFFFAOYSA-N 1-(difluoromethyl)-4-hexoxycyclohexane Chemical compound CCCCCCOC1CCC(CC1)C(F)F PXJGCOIUDPIBMY-UHFFFAOYSA-N 0.000 description 1
- FPFAWIUDHLQOBI-UHFFFAOYSA-N 1-[4-(difluoromethyl)cyclohexyl]pyrazole Chemical compound C1CC(CCC1C(F)F)N2C=CC=N2 FPFAWIUDHLQOBI-UHFFFAOYSA-N 0.000 description 1
- UPRCYXWNOYZJRB-UHFFFAOYSA-N 1-[4-(difluoromethyl)phenyl]pyrazole Chemical compound C1=CN(N=C1)C2=CC=C(C=C2)C(F)F UPRCYXWNOYZJRB-UHFFFAOYSA-N 0.000 description 1
- KFHASOAMZUXBAE-UHFFFAOYSA-N 1-[5-(difluoromethyl)furan-2-yl]-2-methoxyethanone Chemical compound COCC(=O)C1=CC=C(O1)C(F)F KFHASOAMZUXBAE-UHFFFAOYSA-N 0.000 description 1
- FQDNIBPYJXOAGW-UHFFFAOYSA-N 1-[5-(difluoromethyl)oxolan-2-yl]-2-methoxyethanone Chemical compound COCC(=O)C1CCC(O1)C(F)F FQDNIBPYJXOAGW-UHFFFAOYSA-N 0.000 description 1
- ASAFVMJURFXFRY-UHFFFAOYSA-N 2-(difluoromethyl)-1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene Chemical compound C1CCC2CC(CCC2C1)C(F)F ASAFVMJURFXFRY-UHFFFAOYSA-N 0.000 description 1
- UCIASWHFRNDACI-UHFFFAOYSA-N 2-(difluoromethyl)-2,3,3a,4,5,6,7,7a-octahydro-1-benzofuran Chemical compound C1CCC2C(C1)CC(O2)C(F)F UCIASWHFRNDACI-UHFFFAOYSA-N 0.000 description 1
- WCUIIGXNFZKHCM-UHFFFAOYSA-N 2-(difluoromethyl)-5-phenylfuran Chemical compound C1=CC=C(C=C1)C2=CC=C(O2)C(F)F WCUIIGXNFZKHCM-UHFFFAOYSA-N 0.000 description 1
- OIVVYHMBOYZTDE-UHFFFAOYSA-N 2-(difluoromethyl)-6-phenylpyridine Chemical compound C1=CC=C(C=C1)C2=NC(=CC=C2)C(F)F OIVVYHMBOYZTDE-UHFFFAOYSA-N 0.000 description 1
- CCADJZMMYROPCV-UHFFFAOYSA-N 2-(difluoromethyl)benzoic acid Chemical compound OC(=O)C1=CC=CC=C1C(F)F CCADJZMMYROPCV-UHFFFAOYSA-N 0.000 description 1
- GSPPYVWCGZAHHB-UHFFFAOYSA-N 2-(difluoromethyl)cyclohexane-1-carboxylic acid Chemical compound OC(=O)C1CCCCC1C(F)F GSPPYVWCGZAHHB-UHFFFAOYSA-N 0.000 description 1
- VUFNLQXQSDUXKB-DOFZRALJSA-N 2-[4-[4-[bis(2-chloroethyl)amino]phenyl]butanoyloxy]ethyl (5z,8z,11z,14z)-icosa-5,8,11,14-tetraenoate Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(=O)OCCOC(=O)CCCC1=CC=C(N(CCCl)CCCl)C=C1 VUFNLQXQSDUXKB-DOFZRALJSA-N 0.000 description 1
- NLZMNJKXQXVJIM-UHFFFAOYSA-N 2-cyclohexyl-5-(difluoromethyl)oxolane Chemical compound C1CCC(CC1)C2CCC(O2)C(F)F NLZMNJKXQXVJIM-UHFFFAOYSA-N 0.000 description 1
- QSBYAXPIUTZQRY-UHFFFAOYSA-N 2-cyclohexyl-6-(difluoromethyl)piperidine Chemical compound C1CCC(CC1)C2CCCC(N2)C(F)F QSBYAXPIUTZQRY-UHFFFAOYSA-N 0.000 description 1
- BPLWLYWRZQYGSG-UHFFFAOYSA-N 4-(Difluoromethyl)biphenyl Chemical group C1=CC(C(F)F)=CC=C1C1=CC=CC=C1 BPLWLYWRZQYGSG-UHFFFAOYSA-N 0.000 description 1
- AVYXJQFZBUXNHB-UHFFFAOYSA-N 4-(difluoromethyl)benzoic acid Chemical compound OC(=O)C1=CC=C(C(F)F)C=C1 AVYXJQFZBUXNHB-UHFFFAOYSA-N 0.000 description 1
- YYQCHCJHDZCDSW-UHFFFAOYSA-N 4-(difluoromethyl)cyclohexane-1-carboxylic acid Chemical compound OC(=O)C1CCC(C(F)F)CC1 YYQCHCJHDZCDSW-UHFFFAOYSA-N 0.000 description 1
- 102100024959 5-hydroxytryptamine receptor 2C Human genes 0.000 description 1
- 101710138093 5-hydroxytryptamine receptor 2C Proteins 0.000 description 1
- YIIDKCZAECTQCP-UHFFFAOYSA-N C(CCCCC)OC1=CC=C(C=C1)C(F)F Chemical compound C(CCCCC)OC1=CC=C(C=C1)C(F)F YIIDKCZAECTQCP-UHFFFAOYSA-N 0.000 description 1
- ASLLYRVKKZRVDS-UHFFFAOYSA-N C1CCC(CC1)C2CCC(CC2)C(F)F Chemical compound C1CCC(CC1)C2CCC(CC2)C(F)F ASLLYRVKKZRVDS-UHFFFAOYSA-N 0.000 description 1
- MBOMLBCRZGEKGH-UHFFFAOYSA-N C1CCC(CC1)C2CCCCC2C(F)F Chemical compound C1CCC(CC1)C2CCCCC2C(F)F MBOMLBCRZGEKGH-UHFFFAOYSA-N 0.000 description 1
- ZENSKPODDLKBOV-UHFFFAOYSA-N CC(C)(C)C(=O)OC1CCCCC1C(F)F Chemical compound CC(C)(C)C(=O)OC1CCCCC1C(F)F ZENSKPODDLKBOV-UHFFFAOYSA-N 0.000 description 1
- 102000017927 CHRM1 Human genes 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 101150073075 Chrm1 gene Proteins 0.000 description 1
- 229940122245 Janus kinase inhibitor Drugs 0.000 description 1
- RVRCKMYKPMXTQC-UHFFFAOYSA-N N-tert-butyl-3-(difluoromethyl)benzamide Chemical compound CC(C)(C)NC(=O)C1=CC=CC(=C1)C(F)F RVRCKMYKPMXTQC-UHFFFAOYSA-N 0.000 description 1
- YOEZZXNSWUWJEW-UHFFFAOYSA-N N-tert-butyl-4-(difluoromethyl)benzamide Chemical compound CC(C)(C)NC(=O)C1=CC=C(C=C1)C(F)F YOEZZXNSWUWJEW-UHFFFAOYSA-N 0.000 description 1
- RHQDFWAXVIIEBN-UHFFFAOYSA-N Trifluoroethanol Chemical compound OCC(F)(F)F RHQDFWAXVIIEBN-UHFFFAOYSA-N 0.000 description 1
- IKRBNGCSTAZFCT-UHFFFAOYSA-N [Rh]N Chemical compound [Rh]N IKRBNGCSTAZFCT-UHFFFAOYSA-N 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- KVFDZFBHBWTVID-UHFFFAOYSA-N cyclohexanecarbaldehyde Chemical compound O=CC1CCCCC1 KVFDZFBHBWTVID-UHFFFAOYSA-N 0.000 description 1
- 238000006114 decarboxylation reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- WISBDSSXPQJMIG-UHFFFAOYSA-N ethyl 4-(difluoromethyl)benzoate Chemical compound CCOC(=O)C1=CC=C(C(F)F)C=C1 WISBDSSXPQJMIG-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000003540 gamma secretase inhibitor Substances 0.000 description 1
- 239000003316 glycosidase inhibitor Substances 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- CXANHLQYPHXUHB-UHFFFAOYSA-N methyl 3-(difluoromethyl)benzoate Chemical compound COC(=O)C1=CC=CC(C(F)F)=C1 CXANHLQYPHXUHB-UHFFFAOYSA-N 0.000 description 1
- CTUNEFJJWFAGEP-UHFFFAOYSA-N methyl 4-(difluoromethyl)benzoate Chemical compound COC(=O)C1=CC=C(C(F)F)C=C1 CTUNEFJJWFAGEP-UHFFFAOYSA-N 0.000 description 1
- UPEGVKKWPIMDRI-UHFFFAOYSA-N methyl 4-(difluoromethyl)cyclohexane-1-carboxylate Chemical compound COC(=O)C1CCC(C(F)F)CC1 UPEGVKKWPIMDRI-UHFFFAOYSA-N 0.000 description 1
- YGMCFQRXTSGTNU-UHFFFAOYSA-N methyl 6-(difluoromethyl)pyridine-2-carboxylate Chemical compound COC(=O)C1=CC=CC(C(F)F)=N1 YGMCFQRXTSGTNU-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- QCCLUFPWQRUDOP-UHFFFAOYSA-N tert-butyl N-[2-(difluoromethyl)phenyl]carbamate Chemical compound FC(C1=C(C=CC=C1)NC(OC(C)(C)C)=O)F QCCLUFPWQRUDOP-UHFFFAOYSA-N 0.000 description 1
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- C07F17/00—Metallocenes
- C07F17/02—Metallocenes of metals of Groups 8, 9 or 10 of the Periodic Table
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- C07C231/00—Preparation of carboxylic acid amides
- C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
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- C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C269/06—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups by reactions not involving the formation of carbamate groups
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- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/20—Preparation of ethers by reactions not forming ether-oxygen bonds by hydrogenation of carbon-to-carbon double or triple bonds
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- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/36—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by hydrogenation of carbon-to-carbon unsaturated bonds
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
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- C07C67/283—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
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- C07C67/303—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
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- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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- C07C2602/14—All rings being cycloaliphatic
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Abstract
本发明公开了一种氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,该方法以环状(烷基)(氨基)卡宾铑络合物为催化剂,
Description
技术领域
本发明属于顺式二氟甲基环己烷衍生物和杂环化合物的制备技术领用,具体 涉及一种利用环状(烷基)(氨基)卡宾铑络合物在氢气氛围条件下与二氟甲基芳烃或 二氟甲基杂环化合物反应得到相应的顺式二氟甲基环己烷衍生物或顺式二氟甲基 杂环化合物的方法。
背景技术
二氟甲基环己烷是重要的结构单元,在农药、医药和材料等领域具有重要的 应用,通过在药物分子中引入二氟甲基可以改变其亲油性、渗透性和代谢稳定 性;因此,合成顺式多取代二氟甲基环己烷化合物对于开发新的药物和农用化学 品具有极大的潜力。目前,市场上许多最畅销的药品和农用化学品含有二氟甲基 环己烷,例如结构式如下的:Janus激酶抑制剂、M1受体正变构调节剂、5-HT2C 调制剂、CFTR调制剂、糖苷酶抑制剂、γ-分泌酶抑制剂等。
但是目前合成顺式多取代二氟甲基环己烷的方法是有限的。现有的合成二氟 甲基环己烷的方法常常采用环己基甲醛与二乙胺基三氟化硫反应制备(New J. Chem.2006,30,447–457)和铜催化环己基甲酸与二氟甲基锌盐的脱羧二氟甲基化 反应制备(J.Am.Chem.Soc.2019,141,11398-11403)。虽然已有的方法可以得到 相应的二氟甲基环己烷化合物,但是合成方法需要用到二乙胺基三氟化硫,其后 处理危险且生成对环境有害的物质,并且存在底物受限,缺乏选择性和反应条件 苛刻等缺点;而铜催化环己基甲酸与二氟甲基锌盐的脱羧二氟甲基化反应不能实 现产物多取代二氟甲基环己烷的非对映选择性,反应需要大量的添加剂,原子经 济性不高。
发明内容
本发明的目的是提供一种底物适用范围广、反应条件温和、选择性高、反应 体系干净的制备顺式二氟甲基环己烷衍生物和顺式二氟甲基杂环化合物的方法。
针对上述目的,本发明采用的技术方案是:将式1所示的二氟甲基芳烃或式1′ 所示的二氟甲基杂环化合物、环状(烷基)(氨基)卡宾铑络合物催化剂、分子筛加 入有机溶剂中,通入氢气,在35~60℃下搅拌反应,反应完全后过滤,用二氯甲烷 洗涤,再经硅胶柱层析,得到式2所示的顺式二氟甲基环己烷衍生物或式2′所示的 顺式二氟甲基杂环化合物:
式中,R代表连在二氟甲基的邻、间、对位中任意一个位置或任意两个位置的 C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种或任意两种 组合,具体可以是连在二氟甲基的邻、间、对位中任意一个位置的甲氧基、己氧基、 羧基、甲氧羰基、乙氧羰基、新戊酰氧基、乙酰氧基甲基、N-叔丁氧羰基氨基、叔 丁胺甲酰基、4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基、1-H-吡唑基等,R'=R。
或者,式中R代表连在二氟甲基的邻、间、对位中任意一个位置的苯基、呋喃 基、吡啶基等中任意一种,或R代表连在二氟甲基的邻、间、对位中任意一个位置 的C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种取代的 苯基,R'相应的代表环己基、四氢呋喃基、六氢吡啶基等中任意一种,或C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种取代的环己基。
式中,X代表N或O;n代表0或1。
上述环状(烷基)(氨基)卡宾铑络合物催化剂((MeCAAC)Rh(COD)Cl)的结构式 如下所示:
上述的有机溶剂为四氢呋喃、正己烷、环己烷中任意一种。
上述环状(烷基)(氨基)卡宾铑络合物催化剂的加入量优选为二氟甲基芳烃或二氟甲基杂环化合物摩尔量的2%~3%。
上述分子筛的加入量优选按每毫摩尔二氟甲基芳烃或二氟甲基杂环化合物加入400~600mg。
上述方法中,优选通入氢气的压力为5~6MPa。
上述方法中,优选在35~60℃下搅拌反应24小时。
本发明的有益效果如下:
与已有的方法比较,本发明具有如下的优点:反应条件温和,原子经济性高, 反应快速且产率较高,底物适用范围广,产物选择性高,反应体系干净,可用于克 级顺式二氟甲基环己烷衍生物和顺式二氟甲基杂环化合物的生产。
具体实施方式
下面结合实施例对本发明进一步详细说明,但本发明的保护范围不仅限于这 些实施例。
实施例1
在反应瓶中加入93mg(0.5mmol)2-(二氟甲基)苯甲酸甲酯、5mg(0.01mmol) 环状(烷基)(氨基)卡宾铑络合物催化剂、10mL四氢呋喃,通入5MPa 的氢气,在35℃下搅拌反应24小时。反应结束后过滤,用二氯甲烷洗涤,再经硅 胶柱层析(洗脱剂为石油醚与乙酸乙酯体积比50:1的混合液),得到2-(二氟甲基) 环己烷甲酸甲酯,产率95%,d.r.=92:8。
对比例1
用等体积三氟乙醇替换实施例1中的四氢呋喃,其他步骤与实施例1相同,得 到2-(二氟甲基)环己烷甲酸甲酯,产率22%,d.r.=88:12。
实施例2
本实施例中,用等体积正己烷替换实施例1中的四氢呋喃,其他步骤与实施例 1相同,得到2-(二氟甲基)环己烷甲酸甲酯,产率95%,d.r.=89:11。
实施例3
本实施例中,用等体积环己烷替换实施例1中的四氢呋喃,其他步骤与实施例 1相同,得到2-(二氟甲基)环己烷甲酸甲酯,产率88%,d.r.=87:13。
实施例4
本实施例中,用等摩尔(2-(二氟甲基)苯基)氨基甲酸叔丁酯替换实施例1中的 2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到(2-(二氟甲基)环己基)氨 基甲酸叔丁酯,产率85%,d.r.﹥99:1。
实施例5
本实施例中,用等摩尔1-(二氟甲基)-2-(己氧基)苯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到1-(二氟甲基)-2-(己氧基)环己烷, 产率75%,d.r.=95:5。
实施例6
本实施例中,用等摩尔2-(二氟甲基)叔丁基甲酸苯酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到(2-(二氟甲基)环己基)新戊酸 酯,产率70%,d.r.=86:14。
实施例7
本实施例中,用等摩尔2-(二氟甲基)苯甲酸替换实施例1中的2-(二氟甲基)苯 甲酸甲酯,其他步骤与实施例1相同,得到2-(二氟甲基)环己烷甲酸,产率83%, d.r.=94:6。
实施例8
本实施例中,用等摩尔3-(二氟甲基)苯甲酰叔丁胺替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到N-(叔丁基)-3-(二氟甲基)环己烷甲 酰胺,产率99%,d.r.=83:17。
实施例9
本实施例中,用等摩尔4-(二氟甲基)苯甲酸甲酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到4-(二氟甲基)环己烷甲酸甲酯,产率 80%,d.r.=83:17。
实施例10
本实施例中,用等摩尔3-(二氟甲基)苯甲酸甲酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到3-(二氟甲基)环己烷甲酸甲酯,产率 70%,d.r.=81:19。
实施例11
本实施例中,用等摩尔4-(二氟甲基)苯甲酸乙酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到4-(二氟甲基)环己烷甲酸乙酯,产率 85%,d.r.=80:20。
实施例12
本实施例中,用等摩尔4-(二氟甲基)苯甲酸替换实施例1中的2-(二氟甲基)苯 甲酸甲酯,其他步骤与实施例1相同,得到4-(二氟甲基)环己烷甲酸,产率89%, d.r.=79:21。
实施例13
本实施例中,用等摩尔4-(二氟甲基)苯甲酰叔丁胺替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到N-(叔丁基)-4-(二氟甲基)环己烷甲 酰胺,产率90%,d.r.=80:20。
实施例14
本实施例中,用等摩尔1-(己氧基)-4-(二氟甲基)苯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到1-(己氧基)-4-(二氟甲基)环己烷, 产率91%,d.r.=86:14。
实施例15
本实施例中,用等摩尔(4-(二氟甲基)苯基)氨基甲酸叔丁酯替换实施例1中的 2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到(4-(二氟甲基)环己基)氨 基甲酸叔丁基酯,产率98%,d.r.=75:25。
实施例16
本实施例中,用等摩尔4-(二氟甲基)苯硼酸频哪醇酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到(4-(二氟甲基)环己基)硼酸频哪 醇酯,产率88%,d.r.=86:14。
实施例17
本实施例中,用等摩尔1-(4-(二氟甲基)苯基)-1H-吡唑替换实施例1中的2-(二氟甲基)苯甲酸甲酯,通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与 实施例1相同,得到1-(4-(二氟甲基)环己基)-1H-吡唑,产率75%,d.r.=82:18。
实施例18
本实施例中,用等摩尔4-二氟甲基联苯替换实施例1中的2-(二氟甲基)苯甲酸 甲酯,其他步骤与实施例1相同,得到4-(二氟甲基)-1,1'-二环己烷,产率98%, d.r.=83:17。
实施例19
本实施例中,用等摩尔2-二氟甲基联苯替换实施例1中的2-(二氟甲基)苯甲酸 甲酯,其他步骤与实施例1相同,得到2-(二氟甲基)-1,1'-二环己烷,产率91%, d.r.=89:11。
实施例20
本实施例中,用等摩尔1,3-二甲氧基-5-(二氟甲基)苯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到1,3-二甲氧基-5-(二氟甲基)环己 烷,产率90%,d.r.=88:12。
实施例21
本实施例中,用等摩尔1-(二氟甲基)-3,4-(二甲氧基)苯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到1-(二氟甲基)-3,4-(二甲氧基) 环己烷,产率73%,d.r.﹥99:1。
实施例22
本实施例中,用等摩尔2-(二氟甲基)萘替换实施例1中的2-(二氟甲基)苯甲酸 甲酯,通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例1相同, 得到2-(二氟甲基)十氢萘,产率80%,d.r.=89:11。
实施例23
本实施例中,用等摩尔2-(二氟甲基)苯并呋喃替换实施例1中的2-(二氟甲基) 苯甲酸甲酯,通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例 1相同,得到2-(二氟甲基)八氢苯并呋喃,产率70%,d.r.=88:12。
实施例24
本实施例中,用等摩尔2-(二氟甲基)-6-吡啶甲酸甲酯替换实施例1中的2-(二氟甲基)苯甲酸甲酯,环状(烷基)(氨基)卡宾铑络合物催化剂的用量增加至 0.015mmol,通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例1 相同,得到6-(二氟甲基)哌啶-2-甲酸甲酯,产率91%,d.r.﹥99:1。
实施例25
本实施例中,用等摩尔2-(二氟甲基)-6-(苯基)吡啶替换实施例1中的2-(二氟甲基)苯甲酸甲酯,环状(烷基)(氨基)卡宾铑络合物催化剂的用量增加至0.015mmol, 通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例1相同,得到 2-(环己基)-6-(二氟甲基)哌啶,产率77%,d.r.=94:6。
实施例26
本实施例中,用等摩尔2-(二氟甲基)-5-(苯基)呋喃替换实施例1中的2-(二氟甲基)苯甲酸甲酯,环状(烷基)(氨基)卡宾铑络合物催化剂的用量增加至0.015mmol, 通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例1相同,得到 2-(环己基)-5-(二氟甲基)四氢呋喃,产率78%,d.r.﹥99:1。
实施例27
本实施例中,用等摩尔2-(二氟甲基)-5-(甲氧乙酰基)呋喃替换实施例1中的 2-(二氟甲基)苯甲酸甲酯,环状(烷基)(氨基)卡宾铑络合物催化剂的用量增加至0.015mmol,通入6MPa的氢气,在60℃下搅拌反应24小时,其他步骤与实施例1 相同,得到2-(二氟甲基)-5-(甲氧乙酰基)四氢呋喃,产率75%,d.r.﹥99:1。
实施例28
本实施例中,用等摩尔3-(二氟甲基)苯基氨基甲酸叔丁酯替换实施例1中的 2-(二氟甲基)苯甲酸甲酯,其他步骤与实施例1相同,得到(3-(二氟甲基)环己基)氨 基甲酸叔丁酯,产率95%,d.r.=77:23。
Claims (7)
1.一种氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:将式1所示的二氟甲基芳烃或式1′所示的二氟甲基杂环化合物、环状(烷基)(氨基)卡宾铑络合物催化剂、分子筛加入有机溶剂中,通入氢气,在35~60℃下搅拌反应,反应完全后过滤,用二氯甲烷洗涤,再经硅胶柱层析,得到式2所示的顺式二氟甲基环己烷衍生物或式2′所示的顺式二氟甲基杂环化合物;
式中,R代表连在二氟甲基的邻、间、对位中任意一个位置或任意两个位置的C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种或任意两种组合,R'=R;
或者式中,R代表连在二氟甲基的邻、间、对位中任意一个位置的苯基、呋喃基、吡啶基中任意一种,或C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种取代的苯基,R'相应的代表环己基、四氢呋喃基、六氢吡啶基中任意一种,或C1~C6烷基、C1~C6烷氧基、羧基、酯基、酰胺基、吡唑基中任意一种取代的环己基;
式中,X代表N或O;n代表0或1;
上述环状(烷基)(氨基)卡宾铑络合物催化剂的结构式如下所示:
上述的有机溶剂为四氢呋喃、正己烷、环己烷中任意一种。
2.根据权利要求1所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:所述的R代表连在二氟甲基的邻、间、对位中任意一个位置的甲氧基、己氧基、羧基、甲氧羰基、乙氧羰基、新戊酰氧基、乙酰氧基甲基、N-叔丁氧羰基氨基、叔丁胺甲酰基、4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基、1-H-吡唑基中任意一种,R'=R。
3.根据权利要求1所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:所述的R代表连在二氟甲基的邻、间、对位中任意一个位置的苯基、呋喃基、吡啶基中任意一种,或C1~C6烷基、C1~C6烷氧基、羧基中任意一种取代的苯基,R'相应的代表环己基、四氢呋喃基、六氢吡啶基中任意一种,或C1~C6烷基、C1~C6烷氧基、羧基中任意一种取代的环己基。
4.根据权利要求1~3任意一项所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:所述环状(烷基)(氨基)卡宾铑络合物催化剂的加入量为二氟甲基芳烃或二氟甲基杂环化合物摩尔量的2%~3%。
5.根据权利要求1~3任意一项所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:所述分子筛的加入量按每毫摩尔二氟甲基芳烃或二氟甲基杂环化合物加入400~600mg。
6.根据权利要求1~3任意一项所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:所述通入氢气的压力为5~6MPa。
7.根据权利要求1~3任意一项所述的氢化合成顺式二氟甲基环己烷衍生物和杂环化合物的方法,其特征在于:在35~60℃下搅拌反应24小时。
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CN114605237A (zh) * | 2020-12-09 | 2022-06-10 | 武汉大学 | 一种氟烷基酮化合物的制备方法及其应用 |
CN114605237B (zh) * | 2020-12-09 | 2023-02-24 | 武汉大学 | 一种氟烷基酮化合物的制备方法及其应用 |
CN112851501A (zh) * | 2021-01-22 | 2021-05-28 | 中国石油大学(华东) | 一种压裂用化学示踪剂及其制备方法与应用 |
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