CN115504916A - 一种甲硫基甲基酯的制备方法 - Google Patents
一种甲硫基甲基酯的制备方法 Download PDFInfo
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- CN115504916A CN115504916A CN202211062603.5A CN202211062603A CN115504916A CN 115504916 A CN115504916 A CN 115504916A CN 202211062603 A CN202211062603 A CN 202211062603A CN 115504916 A CN115504916 A CN 115504916A
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- -1 methylmercapto methyl Chemical group 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000006243 chemical reaction Methods 0.000 claims abstract description 74
- 238000010992 reflux Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 35
- 125000004092 methylthiomethyl group Chemical group [H]C([H])([H])SC([H])([H])* 0.000 claims abstract description 16
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 156
- 239000012044 organic layer Substances 0.000 claims description 68
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 52
- 238000010898 silica gel chromatography Methods 0.000 claims description 28
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 26
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 26
- 239000000706 filtrate Substances 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 26
- 239000003208 petroleum Substances 0.000 claims description 26
- 238000005406 washing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 150000001735 carboxylic acids Chemical class 0.000 claims description 6
- 125000001624 naphthyl group Chemical group 0.000 claims description 4
- 125000004076 pyridyl group Chemical group 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000003480 eluent Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 8
- 230000035484 reaction time Effects 0.000 abstract description 4
- 238000001308 synthesis method Methods 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 119
- 238000010438 heat treatment Methods 0.000 description 25
- 239000008399 tap water Substances 0.000 description 15
- 235000020679 tap water Nutrition 0.000 description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000005711 Benzoic acid Substances 0.000 description 3
- 235000010233 benzoic acid Nutrition 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 2
- FEIQOMCWGDNMHM-KBXRYBNXSA-N (2e,4e)-5-phenylpenta-2,4-dienoic acid Chemical compound OC(=O)\C=C\C=C\C1=CC=CC=C1 FEIQOMCWGDNMHM-KBXRYBNXSA-N 0.000 description 2
- IWPZKOJSYQZABD-UHFFFAOYSA-N 3,5-dimethoxybenzoic acid Chemical compound COC1=CC(OC)=CC(C(O)=O)=C1 IWPZKOJSYQZABD-UHFFFAOYSA-N 0.000 description 2
- LULAYUGMBFYYEX-UHFFFAOYSA-N 3-chlorobenzoic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1 LULAYUGMBFYYEX-UHFFFAOYSA-N 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- DUEPRVBVGDRKAG-UHFFFAOYSA-N carbofuran Chemical compound CNC(=O)OC1=CC=CC2=C1OC(C)(C)C2 DUEPRVBVGDRKAG-UHFFFAOYSA-N 0.000 description 2
- JWMLCCRPDOIBAV-UHFFFAOYSA-N chloro(methylsulfanyl)methane Chemical compound CSCCl JWMLCCRPDOIBAV-UHFFFAOYSA-N 0.000 description 2
- FEIQOMCWGDNMHM-UHFFFAOYSA-N cinnamylideneacetic acid Natural products OC(=O)C=CC=CC1=CC=CC=C1 FEIQOMCWGDNMHM-UHFFFAOYSA-N 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- GPSDUZXPYCFOSQ-UHFFFAOYSA-N m-toluic acid Chemical compound CC1=CC=CC(C(O)=O)=C1 GPSDUZXPYCFOSQ-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- RKSOPLXZQNSWAS-UHFFFAOYSA-N tert-butyl bromide Chemical compound CC(C)(C)Br RKSOPLXZQNSWAS-UHFFFAOYSA-N 0.000 description 2
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- FZTLLUYFWAOGGB-UHFFFAOYSA-N 1,4-dioxane dioxane Chemical compound C1COCCO1.C1COCCO1 FZTLLUYFWAOGGB-UHFFFAOYSA-N 0.000 description 1
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 1
- UOBYKYZJUGYBDK-UHFFFAOYSA-N 2-naphthoic acid Chemical compound C1=CC=CC2=CC(C(=O)O)=CC=C21 UOBYKYZJUGYBDK-UHFFFAOYSA-N 0.000 description 1
- IIKVTJWRBSYRSA-UHFFFAOYSA-N 2-oxo-1,3-dihydroindole-6-carboxylic acid Chemical compound OC(=O)C1=CC=C2CC(=O)NC2=C1 IIKVTJWRBSYRSA-UHFFFAOYSA-N 0.000 description 1
- VPHHJAOJUJHJKD-UHFFFAOYSA-N 3,4-dichlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C(Cl)=C1 VPHHJAOJUJHJKD-UHFFFAOYSA-N 0.000 description 1
- AFPHTEQTJZKQAQ-UHFFFAOYSA-N 3-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC([N+]([O-])=O)=C1 AFPHTEQTJZKQAQ-UHFFFAOYSA-N 0.000 description 1
- MIJYXULNPSFWEK-GTOFXWBISA-N 3beta-hydroxyolean-12-en-28-oic acid Chemical compound C1C[C@H](O)C(C)(C)[C@@H]2CC[C@@]3(C)[C@]4(C)CC[C@@]5(C(O)=O)CCC(C)(C)C[C@H]5C4=CC[C@@H]3[C@]21C MIJYXULNPSFWEK-GTOFXWBISA-N 0.000 description 1
- ZQVKTHRQIXSMGY-UHFFFAOYSA-N 4-Ethylbenzoic acid Chemical compound CCC1=CC=C(C(O)=O)C=C1 ZQVKTHRQIXSMGY-UHFFFAOYSA-N 0.000 description 1
- TUXYZHVUPGXXQG-UHFFFAOYSA-N 4-bromobenzoic acid Chemical compound OC(=O)C1=CC=C(Br)C=C1 TUXYZHVUPGXXQG-UHFFFAOYSA-N 0.000 description 1
- ADCUEPOHPCPMCE-UHFFFAOYSA-N 4-cyanobenzoic acid Chemical compound OC(=O)C1=CC=C(C#N)C=C1 ADCUEPOHPCPMCE-UHFFFAOYSA-N 0.000 description 1
- BBYDXOIZLAWGSL-UHFFFAOYSA-N 4-fluorobenzoic acid Chemical compound OC(=O)C1=CC=C(F)C=C1 BBYDXOIZLAWGSL-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- ZEYHEAKUIGZSGI-UHFFFAOYSA-N 4-methoxybenzoic acid Chemical compound COC1=CC=C(C(O)=O)C=C1 ZEYHEAKUIGZSGI-UHFFFAOYSA-N 0.000 description 1
- JKLISIRFYWXLQG-UHFFFAOYSA-N Epioleonolsaeure Natural products C1CC(O)C(C)(C)C2CCC3(C)C4(C)CCC5(C(O)=O)CCC(C)(C)CC5C4CCC3C21C JKLISIRFYWXLQG-UHFFFAOYSA-N 0.000 description 1
- YBRJHZPWOMJYKQ-UHFFFAOYSA-N Oleanolic acid Natural products CC1(C)CC2C3=CCC4C5(C)CCC(O)C(C)(C)C5CCC4(C)C3(C)CCC2(C1)C(=O)O YBRJHZPWOMJYKQ-UHFFFAOYSA-N 0.000 description 1
- MIJYXULNPSFWEK-UHFFFAOYSA-N Oleanolinsaeure Natural products C1CC(O)C(C)(C)C2CCC3(C)C4(C)CCC5(C(O)=O)CCC(C)(C)CC5C4=CCC3C21C MIJYXULNPSFWEK-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000037374 absorbed through the skin Effects 0.000 description 1
- 229960004050 aminobenzoic acid Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960002685 biotin Drugs 0.000 description 1
- 235000020958 biotin Nutrition 0.000 description 1
- 239000011616 biotin Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KSEBMYQBYZTDHS-HWKANZROSA-N ferulic acid Chemical compound COC1=CC(\C=C\C(O)=O)=CC=C1O KSEBMYQBYZTDHS-HWKANZROSA-N 0.000 description 1
- 229940114124 ferulic acid Drugs 0.000 description 1
- KSEBMYQBYZTDHS-UHFFFAOYSA-N ferulic acid Natural products COC1=CC(C=CC(O)=O)=CC=C1O KSEBMYQBYZTDHS-UHFFFAOYSA-N 0.000 description 1
- 235000001785 ferulic acid Nutrition 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229940030980 inova Drugs 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229940100243 oleanolic acid Drugs 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- HZLWUYJLOIAQFC-UHFFFAOYSA-N prosapogenin PS-A Natural products C12CC(C)(C)CCC2(C(O)=O)CCC(C2(CCC3C4(C)C)C)(C)C1=CCC2C3(C)CCC4OC1OCC(O)C(O)C1O HZLWUYJLOIAQFC-UHFFFAOYSA-N 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- YZUAOVCUGSBIPP-UHFFFAOYSA-N tert-butyl N-[1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl]carbamate Chemical compound C1=CC=CN2C(C(NC(=O)OC(C)(C)C)C)=NN=C21 YZUAOVCUGSBIPP-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- QURCVMIEKCOAJU-UHFFFAOYSA-N trans-isoferulic acid Natural products COC1=CC=C(C=CC(O)=O)C=C1O QURCVMIEKCOAJU-UHFFFAOYSA-N 0.000 description 1
- 229940096998 ursolic acid Drugs 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/26—Separation; Purification; Stabilisation; Use of additives
- C07C319/28—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/30—Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
- C07D209/32—Oxygen atoms
- C07D209/34—Oxygen atoms in position 2
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
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- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
- C07D309/38—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms one oxygen atom in position 2 or 4, e.g. pyrones
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- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic 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
- C07D495/04—Ortho-condensed systems
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- C07J63/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms
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Abstract
本发明公开了一种甲硫基甲基酯的制备方法:向容器中加入羧酸和二甲基亚砜DMSO,回流反应5‑15min;反应结束后分离纯化即得甲硫基甲基酯类化合物。本发明提供的合成方法操作简单;反应条件温和、无需催化剂、也无需额外填加溶剂、反应时间短,而产率高,为甲硫基甲基酯的制备提供了一种新的方法。
Description
技术领域
本发明属于化学合成技术领域,具体涉及一种甲硫基甲基酯的制备方法。
背景技术
近几十年来,甲硫基甲基酯一直被用作羧酸的保护基团,也用于合成氯甲酯(Org.Process Res.Dev.,2010,14,1402–1406)以及芳基乙酸衍生物的邻位硫甲基化(Synlett,1995,113–115;Tetrahedron Lett.,1998,39,3157–3160)。在过去几十年中将羧酸转化为甲硫基甲基酯的两种传统方法包括(a)羧酸根阴离子与甲硫基甲基氯反应(Tetrahedron Lett.,1978,8,731–732)或者(b)叔丁基溴催化二甲亚砜与羧酸反应(J.Chem.Soc.,Perkin Trans.1,1981,2737–2739;J.Chem.Soc.,Chem.Commun.,1979,370–371)。但是方法(a)会使用有毒试剂,如甲硫基甲基氯和18-冠醚-6,冠醚在暴露时很容易通过皮肤吸收,最终会导致中枢神经系统效应(Toxicol.Appl.Pharmacol.,1978,44,263–268);方法(b)需要使用大量过量的卤代烃,即溴化叔丁基,它已被发现是一种致癌物。另外,2012年有文献报道了(c)直接将羧酸转化成甲硫基甲基酯的方法,但是该方法需要使用微波辅助,设备要求高,使得反应成本高,操作复杂(Tetrahedron Lett.2012,53,4782)。综上,方法(a)-(c)制备甲硫基甲基酯方法均存在一定局限性。
因此,进一步发展简便、绿色、高效的甲硫基甲基酯的合成方法具有一定的意义。
发明内容
本发明目的是提供一种甲硫基甲基酯的制备方法,该合成方法操作简单、绿色、反应时间短、产率高。
为达到上述目的,本发明采用以下技术方案:
一种甲硫基甲基酯的制备方法,所述甲硫基甲基酯的结构如以下通式2所示:
其中R为苯基、取代苯基、萘基、吡啶基,具体制备方法如下:
向容器中加入羧酸和二甲基亚砜,回流反应5-15min;反应结束后分离纯化即得甲硫基甲基酯类化合物;
所述羧酸的结构式为:
其中R为苯基、取代苯基、萘基、吡啶基。回流时反应物加热沸腾即可。
前述甲硫基甲基酯的制备方法:所述羧酸和二甲基亚砜加入量n羧酸:V二甲基亚砜=0.3mmol:1mL。根据二甲基亚砜的化学性质,设计反应并控制二甲基亚砜加入量,使其既是反应物,同时还具备溶剂的作用。
前述甲硫基甲基酯的制备方法:所述反应结束后的分离纯化过程为:使用乙酸乙酯萃取反应结束后得到的物质2~3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析分离纯化,得到甲硫基甲基酯类化合物。
前述甲硫基甲基酯的制备方法:所述硅胶柱层析洗脱剂为石油醚/乙酸乙酯,体积比为5~20:1。
与现有技术相比,本发明的有益效果是:
提供了一种甲硫基甲基酯的制备方法,该合成方法操作简单,直接加热回流即可制备得到甲硫基甲基酯;该方法不需要使用催化剂,也不需要另外使用溶剂,绿色;反应时间短,只需5-15min;而产率很高,所得产物有一半能达到80%的高产率,最高可达97%,为甲硫基甲基酯的制备提供了一种新的方法。
为了保证本发明甲硫基甲基酯的制备方法
科学、合理,发明人通过以下试验进行相应研究和筛选,最终确定了本发明的技术方案。
1.主要仪器与试剂
INOVA 600MHz核磁共振测试仪(TMS内标),美国瓦里安技术中国有限公司;
二甲基亚砜DMSO,百灵威试剂有限公司;
羧酸,百灵威试剂有限公司;
薄层层析硅胶板,青岛海洋化工厂。
2.反应条件优化
以苯甲酸(0.3mmol)和DMSO(1mL)为反应底物,选取了反应温度、反应时间以及溶剂类别作为反应因素进行考察,设计考察各反应因素对产率的影响,结果如表1。由表1可以看到,苯甲酸于DMSO中回流15min最佳。溶剂选取了最优反应条件下的二甲基甲酰胺(DMF)、1,4-二氧六环(1,4-dioxane)、四氢呋喃(THF)、无水乙醇(EtOH)作为考察对象。由表1可知,加入溶剂后反应产率低甚至不反应,因此,该反应不需要另外的溶剂,DMSO既是反应物也是反应溶剂。
表1各反应因素对产率的影响
序号 | 温度(℃) | 时间(min) | 溶剂(1mL) | 产率(%) |
1 | reflux(回流) | 120 | / | 23 |
2 | 180 | 120 | / | 11 |
3 | 140 | 120 | / | 7 |
4 | reflux(回流) | 100 | / | 25 |
5 | reflux(回流) | 80 | / | 26 |
6 | reflux(回流) | 30 | / | 70 |
7 | reflux(回流) | 15 | / | 85 |
8 | reflux(回流) | 10 | / | 68 |
9 | reflux(回流) | 15 | DMF | 12 |
10 | reflux(回流) | 15 | 1,4-dioxane | / |
11 | reflux(回流) | 15 | THF | / |
12 | reflux(回流) | 15 | EtOH | / |
采用优化后的反应条件,制备了不同取代基的甲硫基甲基酯,详见实施例。
具体实施方式
实施例1:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2a;产率85%。
制备得到的甲硫基甲基酯衍生物(2a)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.10–8.09(dd,J=8.3,1.4Hz,2H),7.62–7.59(t,J=7.5Hz,1H),7.49–7.47(t,J=7.8Hz,2H),5.42(s,2H),2.34(s,3H).13C NMR(151MHz,CDCl3)δ166.27,133.27,129.84,129.75,128.45,68.83,15.51.
实施例2:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入对甲氧基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2b;产率83%。
制备得到的甲硫基甲基酯衍生物(2b)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.05–8.04(d,J=8.9Hz,2H),6.96–6.94(d,J=8.9Hz,2H),5.39(s,2H),3.89(s,3H),2.33(s,3H).13C NMR(151MHz,CDCl3)δ165.99,163.63,131.83,122.22,113.70,68.48,55.47,15.47.
实施例3:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入3,5-二甲氧基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用纯水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2c;产率88%。
制备得到的甲硫基甲基酯衍生物(2c)的核磁共振(1H NMR和13C NMR)检测数据为:1H NMR(600MHz,CDCl3)δ7.23–7.23(d,J=2.4Hz,2H),6.69–6.69(t,J=2.4Hz,1H),5.40(s,2H),3.86(s,6H),2.33(s,3H).13C NMR(151MHz,CDCl3)δ166.05,160.69,131.68,107.35,105.94,69.01,55.61,15.55.
实施例4:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入3-甲基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2d;产率85%。
制备得到的甲硫基甲基酯衍生物(2d)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CH3OD)δ7.87(s,1H),7.85–7.84(d,J=7.8Hz,1H),7.47–7.46(d,J=7.8Hz,1H),7.40–7.38(t,J=7.7Hz,1H),5.43(s,2H),2.42(s,3H),2.33(s,3H).13C NMR(151MHz,CH3OD)δ166.34,138.34,133.78,129.80,129.62,128.18,126.38,68.52,19.90,14.08.
实施例5:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-乙基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2e;产率96%。
制备得到的甲硫基甲基酯衍生物(2e)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ7.98–7.97(d,J=8.2Hz,2H),7.36–7.35(d,J=7.7Hz,2H),5.43(s,2H),2.76–2.73(q,J=7.6Hz,2H),2.33(s,3H),1.30–1.27(td,J=7.6,0.6Hz,3H).13C NMR(151MHz,CD3OD)δ166.28,150.39,129.40,127.77,127.32,68.39,28.50,14.34,14.03.
实施例6:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-羟基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为10:1)分离纯化,得到甲硫基甲基酯衍生物2f;产率75%。
制备得到的甲硫基甲基酯衍生物(2f)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.01–8.0(d,J=8.8Hz,2H),6.91–6.89(d,J=8.8Hz,2H),5.39(s,2H),2.33(s,3H).13C NMR(151MHz,CDCl3)δ166.09,160.17,132.16,122.31,115.30,68.62,15.48.
实施例7:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-氨基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用纯水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为10:1)分离纯化,得到甲硫基甲基酯衍生物2g;产率86%。
制备得到的甲硫基甲基酯衍生物(2g)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ7.91–7.89(d,J=8.7Hz,1H),6.67–6.66(d,J=8.7Hz,1H),5.36(s,1H),2.32(s,2H).13C NMR(151MHz,CDCl3)δ166.23,151.14,131.88,119.27,113.80,68.11,15.42.
实施例8:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-氟苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2h;产率82%。
制备得到的甲硫基甲基酯衍生物(2h)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.13–8.09(m,2H),7.17–7.12(m,2H),5.41(s,2H),2.33(s,3H).13CNMR(151MHz,CDCl3)δ165.95(253.68),165.30,132.33(9.06),126.08(3.02),115.64(22.65),69.02,15.55.
实施例9:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入3-氯苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2i;产率64%。
制备得到的甲硫基甲基酯衍生物(2i)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ8.03–8.03(t,J=1.9Hz,1H),8.01–7.99(dt,J=7.8,1.4Hz,1H),7.68–7.67(ddd,J=8.0,2.3,1.1Hz,1H),7.55–7.52(t,J=7.9Hz,1H),5.47(s,2H),2.34(s,3H).13C NMR(151MHz,CD3OD)δ164.89,134.35,133.02,131.82,130.02,128.99,127.54,69.14,14.10.
实施例10:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入3,4-二氯苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2j;产率65%。
制备得到的甲硫基甲基酯衍生物(2j)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ8.17–8.17(d,J=2.0Hz,1H),7.98–7.96(dd,J=8.4,2.0Hz,1H),7.72–7.71(d,J=8.4Hz,1H),5.47(s,2H),2.34(s,3H).13C NMR(151MHz,CD3OD)δ164.20,137.37,132.56,131.02,130.72,130.16,128.74,69.40,14.13.
实施例11:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-溴苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2k;产率83%。
制备得到的甲硫基甲基酯衍生物(2k)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ7.95–7.94(d,J=8.5Hz,2H),7.62–7.61(d,J=8.6Hz,2H),5.41(s,2H),2.33(s,3H).13C NMR(151MHz,CDCl3)δ165.57,131.83,131.26,128.71,128.47,69.17,15.59.
实施例12:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入3-硝基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用去离子水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2l;产率74%。
制备得到的甲硫基甲基酯衍生物(2l)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.92(s,1H),8.48–8.46(d,J=8.4Hz,1H),8.43–8.42(d,J=7.8Hz,1H),7.72–7.69(t,J=8.0Hz,1H),5.48(s,2H),2.37(s,3H).13CNMR(151MHz,CDCl3)δ164.23,135.42,131.63,129.75,127.71,125.74,124.73,70.01,15.76.
实施例13:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入2-三氟甲基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2m;产率74%。
制备得到的甲硫基甲基酯衍生物(2m)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,DMSO-d6)δ7.83–7.81(m,1H),7.78–7.76(m,1H),7.64–7.62(dd,J=6.2,3.0Hz,2H),5.40(s,2H),2.32(s,3H).13C NMR(151MHz,DMSO)δ161.66,127.03,126.68,125.97(1.51),125.64,124.06(32.71),122.01(5.03),118.56(273.81),65.32,10.83.
实施例14:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入4-氰基苯甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2n;产率95%。
制备得到的甲硫基甲基酯衍生物(2n)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ8.22–8.21(d,J=8.6Hz,2H),7.92–7.91(d,J=8.6Hz,2H),5.49(s,2H),2.35(s,3H).13C NMR(151MHz,CD3OD)δ164.65,133.79,132.27,129.84,117.48,116.38,69.46,14.11.
实施例15:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入2-萘甲酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为10:1)分离纯化,得到甲硫基甲基酯衍生物2o;产率75%。
制备得到的甲硫基甲基酯衍生物(2o)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ8.66(s,1H),8.08–8.04(m,2H),7.99–7.96(m,2H),7.68–7.65(t,J=7.4Hz,1H),7.62–7.60(t,J=7.5Hz,1H),5.51(s,2H),2.38(s,3H).13C NMR(151MHz,CD3OD)δ166.34,135.78,132.57,130.78,129.05,128.30,128.06,127.48,127.07,126.62,124.58,68.75,14.12.
实施例16:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入烟酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用去离子水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为5:1)分离纯化,得到甲硫基甲基酯衍生物2p;产率85%。
制备得到的甲硫基甲基酯衍生物(2p)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CD3OD)δ9.18–9.17(m,1H),8.81–8.80(d,J=4.1Hz,1H),8.47–8.45(dt,J=8.0,2.0Hz,1H),7.63–7.61(m,1H),5.51(s,2H),2.37(s,3H).13C NMR(151MHz,CD3OD)δ165.96,154.30,151.17,138.98,127.86,125.36,70.71,15.51.
实施例17:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入5-苯基-2,4-戊二烯酸0.3mmol和1mL DMSO,加热回流反应15min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2q;产率77%。
制备得到的甲硫基甲基酯衍生物(2q)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ7.54–7.51(m,1H),7.50–7.49(m,2H),7.40–7.37(m,2H),7.36–7.33(m,1H),6.97–6.89(m,2H),6.06–6.03(d,J=15.4Hz,1H),5.27(s,2H),2.30(s,3H).13C NMR(151MHz,CDCl3)δ166.63,145.62,141.14,135.92,129.23,128.86,127.29,126.08,120.45,68.18,15.47.
实施例18:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入5-苯基-2,4-戊二烯酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为5:1)分离纯化,得到甲硫基甲基酯衍生物2r;产率91%。
制备得到的甲硫基甲基酯衍生物(2r)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ5.18(s,2H),2.74–2.68(m,4H),2.25(s,3H).13C NMR(151MHz,CDCl3)δ177.94,171.89,68.65,28.94,28.78,15.38.
实施例19:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入齐墩果酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为8:1)分离纯化,得到甲硫基甲基酯衍生物2t;产率80%。
制备得到的甲硫基甲基酯衍生物(2t)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ5.33–5.32(t,J=3.7Hz,1H),5.18–5.16(d,J=11.6Hz,1H),5.08–5.06(d,J=11.6Hz,1H),3.24–3.22(dd,J=11.3,4.3Hz,1H),2.91–2.88(dd,J=14.1,4.7Hz,1H),2.25(s,3H),2.04–1.98(td,J=14.7,4.1Hz,1H),1.93–1.86(m,2H),1.76–1.70(td,J=13.9,4.4Hz,1H),1.68–1.62(m,6H),1.60–1.58(td,J=4.8,4.1,2.7Hz,1H),1.56–1.53(m,2H),1.49–1.47(dd,J=12.6,4.0Hz,1H),1.45–1.42(m,1H),1.40–1.38(m,1H),1.36–1.33(dd,J=13.7,4.2Hz,1H),1.32–1.27(m,2H),1.25–1.17(m,2H),1.16(s,3H),1.12–1.09(dt,J=13.5,3.1Hz,1H),1.00(s,3H),0.95(s,3H),0.92(s,6H),0.80(s,3H),0.78(s,3H),0.76–0.74(d,J=9.7Hz,1H).13C NMR(151MHz,CDCl3)δ177.28,143.60,122.52,79.03,67.95,55.21,47.62,46.89,45.90,41.75,41.23,39.39,38.76,38.45,37.03,33.86,33.09,32.76,32.27,30.71,28.11,27.59,27.20,25.82,23.61,23.43,23.06,18.34,17.13,15.60,15.46,15.36.
实施例20:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入L-乌苏酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为8:1)分离纯化,得到甲硫基甲基酯衍生物2u;产率73%。
制备得到的甲硫基甲基酯衍生物(2u)的核磁共振(1H NMR和13C NMR)检测数据为:13CNMR(151MHz,CD3OD)δ177.31,137.90,126.12,76.12,74.01,73.54,67.87,52.94,48.29,48.24,42.48,40.15,39.35,39.06,38.98,38.07,37.98,36.48,32.49,30.31,28.80,27.68,23.98,22.82,22.79,20.13,17.69,17.13,16.48,16.21,14.05,13.63.1H NMR(600MHz,CD3OD)δ5.30–5.29(t,J=3.7Hz,1H),5.15–5.09(m,2H),4.62(s,1H),3.97–3.96(dd,J=4.2,2.9Hz,1H),3.66–3.65(d,J=2.9Hz,1H),3.50–3.49(d,J=4.2Hz,1H),2.43–2.40(dd,J=10.4,7.1Hz,1H),2.28–2.27(d,J=1.8Hz,1H),2.25(s,3H),2.14–2.09(td,J=13.5,4.5Hz,1H),2.03–2.00(m,2H),1.92–1.87(td,J=13.8,4.8Hz,1H),1.74–1.72(dd,J=5.7,3.1Hz,1H),1.72–1.69(q,J=4.8,3.6Hz,1H),1.67–1.62(td,J=13.4,4.3Hz,2H),1.60–1.58(m,1H),1.56–1.53(m,2H),1.40–1.39(d,J=3.7Hz,1H),1.38–1.37(t,J=3.5Hz,1H),1.35(s,1H),1.27(s,3H),1.25–1.22(m,2H),1.18(s,3H),1.15–1.12(m,2H),1.03(s,3H),1.00(s,3H),0.99(s,1H),0.93(s,3H),0.92(s,3H),0.88(s,3H).
实施例21:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入香豆酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2v;产率75%。
制备得到的甲硫基甲基酯衍生物(2v)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.37–8.37(dd,J=2.6,1.1Hz,1H),7.83–7.81(dd,J=9.8,2.6Hz,1H),6.39–6.38(dd,J=9.8,1.1Hz,1H),5.37(s,2H),2.32(s,3H).13C NMR(151MHz,CDCl3)δ162.73,159.64,158.52,141.46,115.42,111.82,69.76,15.72.
实施例22:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入阿魏酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用纯水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为10:1)分离纯化,得到甲硫基甲基酯衍生物2w;产率63%。
制备得到的甲硫基甲基酯衍生物(2w)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ7.70–7.67(d,J=15.9Hz,1H),7.12–7.10(dd,J=8.2,2.0Hz,1H),7.06–7.06(d,J=1.9Hz,1H),6.96–6.94(d,J=8.2Hz,1H),6.35–6.33(d,J=15.9Hz,1H),5.91(s,1H),5.30(s,2H),3.96(s,3H),2.31(s,3H).13C NMR(151MHz,CDCl3)δ166.86,148.19,146.79,145.77,126.84,123.29,114.83,114.77,109.39,68.20,55.96,15.47.
实施例23:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入生物素0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2x;产率62%。
制备得到的甲硫基甲基酯衍生物(2x)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ5.92(s,1H),5.54(s,1H),5.16(s,2H),4.55–4.53(t,J=6.3Hz,1H),4.36–4.34(t,J=6.0Hz,1H),3.21–3.18(dt,J=10.9,5.6Hz,1H),2.96–2.93(dd,J=12.9,5.0Hz,1H),2.78–2.76(d,J=12.8Hz,1H),2.42–2.39(t,2H),2.27(s,3H),2.07(s,1H),1.76–1.70(m,5H).13C NMR(151MHz,CDCl3)δ175.24,173.26,68.15,62.05,60.20,55.34,40.56,33.93,28.31,24.65,21.00,15.49.
实施例24:一种甲硫基甲基酯的制备方法:
向5mL圆底烧瓶中加入2-氧代吲哚啉-6-甲酸0.3mmol和1mL DMSO,加热回流反应5min;反应结束后使用乙酸乙酯50ml萃取3次,取有机层,依次使用自来水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后的有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析(石油醚:乙酸乙酯体积比为20:1)分离纯化,得到甲硫基甲基酯衍生物2y;产率97%。
制备得到的甲硫基甲基酯衍生物(2y)的核磁共振(1H NMR和13C NMR)检测数据为:1HNMR(600MHz,CDCl3)δ8.48(s,1H),7.81–7.80(dd,J=7.7,1.5Hz,1H),7.59(s,1H),7.34–7.33(d,J=7.7Hz,1H),5.41(s,2H),3.63(s,2H),2.34(s,3H).13C NMR(151MHz,CDCl3)δ176.73,165.83,142.68,130.89,129.85,124.60,124.41,110.33,69.15,36.23,15.59.
实施例1-24所得甲硫基甲基酯衍生物2a-2r和2t-2y的结构式按编号对应如下:
Claims (4)
2.根据权利要求1所述甲硫基甲基酯的制备方法,其特征在于:所述羧酸和二甲基亚砜加入量n羧酸:V二甲基亚砜=0.3mmol:1mL。
3.根据权利要求1所述甲硫基甲基酯的制备方法,其特征在于:所述反应结束后的分离纯化过程为:使用乙酸乙酯萃取反应结束后得到的物质2~3次,取有机层,依次使用水、饱和氯化钠溶液洗涤,再用无水硫酸钠干燥洗涤后有机层,过滤;所得滤液进行减压浓缩,浓缩后的残余物再使用硅胶柱层析分离纯化,得到甲硫基甲基酯类化合物。
4.根据权利要求3所述甲硫基甲基酯的制备方法,其特征在于:所述硅胶柱层析洗脱剂为石油醚/乙酸乙酯,体积比为5~20:1。
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