CN1369473A - 制备顺式-6-十六碳烯酸的方法 - Google Patents
制备顺式-6-十六碳烯酸的方法 Download PDFInfo
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- CN1369473A CN1369473A CN02100492A CN02100492A CN1369473A CN 1369473 A CN1369473 A CN 1369473A CN 02100492 A CN02100492 A CN 02100492A CN 02100492 A CN02100492 A CN 02100492A CN 1369473 A CN1369473 A CN 1369473A
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- phosphonium salt
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- 238000000034 method Methods 0.000 title claims abstract description 21
- NNNVXFKZMRGJPM-KHPPLWFESA-N sapienic acid Chemical compound CCCCCCCCC\C=C/CCCCC(O)=O NNNVXFKZMRGJPM-KHPPLWFESA-N 0.000 title abstract description 3
- NNNVXFKZMRGJPM-UHFFFAOYSA-N 6-Hexadecenoic acid Natural products CCCCCCCCCC=CCCCCC(O)=O NNNVXFKZMRGJPM-UHFFFAOYSA-N 0.000 title abstract 2
- KSMVZQYAVGTKIV-UHFFFAOYSA-N decanal Chemical compound CCCCCCCCCC=O KSMVZQYAVGTKIV-UHFFFAOYSA-N 0.000 claims abstract description 15
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical class C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000002148 esters Chemical class 0.000 claims abstract description 8
- 150000001299 aldehydes Chemical class 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 125000001424 substituent group Chemical group 0.000 claims abstract description 3
- 239000002253 acid Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 125000003118 aryl group Chemical group 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 8
- 150000007524 organic acids Chemical class 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 238000007127 saponification reaction Methods 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 238000007239 Wittig reaction Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 17
- -1 palmityl ester Chemical class 0.000 description 11
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- 239000003513 alkali Substances 0.000 description 7
- 150000004714 phosphonium salts Chemical class 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 4
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- DXBULVYHTICWKT-UHFFFAOYSA-N ethyl 6-bromohexanoate Chemical compound CCOC(=O)CCCCCBr DXBULVYHTICWKT-UHFFFAOYSA-N 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000001624 naphthyl group Chemical group 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- ZFFBIQMNKOJDJE-UHFFFAOYSA-N 2-bromo-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(Br)C(=O)C1=CC=CC=C1 ZFFBIQMNKOJDJE-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 150000003818 basic metals Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000006218 1-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006176 2-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(C([H])([H])*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 1
- 150000008046 alkali metal hydrides Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 229910001038 basic metal oxide Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000003810 ethyl acetate extraction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- AFRJJFRNGGLMDW-UHFFFAOYSA-N lithium amide Chemical compound [Li+].[NH2-] AFRJJFRNGGLMDW-UHFFFAOYSA-N 0.000 description 1
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 1
- OVEHNNQXLPJPPL-UHFFFAOYSA-N lithium;n-propan-2-ylpropan-2-amine Chemical compound [Li].CC(C)NC(C)C OVEHNNQXLPJPPL-UHFFFAOYSA-N 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002900 organolithium compounds Chemical class 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 description 1
- 229910000105 potassium hydride Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- FIQMHBFVRAXMOP-UHFFFAOYSA-N triphenylphosphane oxide Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=O)C1=CC=CC=C1 FIQMHBFVRAXMOP-UHFFFAOYSA-N 0.000 description 1
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
本发明涉及一种制备式I的顺式-6-十六碳烯酸的方法,包括a1)使式II的三苯基鏻盐R1OOC-(CH2)5-P(R2)3 +X- II与式III的癸醛H3C-(CH2)8-CH=O III或a2)使式IV的三苯基鏻盐H3C-(CH2)9-P(R2)3 +X- IV与式V的醛R1OOC-(CH2)4-CH=O V以维悌希反应方式反应,以及b)皂化由工艺步骤a1)或a2)形成的式VI的酯,其中取代基R1、R2和X-具有说明书中所给含义。
Description
本发明涉及一种制备顺式-6-十六碳烯酸的方法。
顺式-6-十六碳烯酸(sapienic acid)是人类皮脂中存在的最常见的不饱和脂肪酸。由于其具有抗菌作用,顺式-6-十六碳烯酸是化妆品和皮肤病学应用所需的活性成分。
为了制备顺式-6-十六碳烯酸及其酯,已知有微生物学方法和化学方法。
例如,WO96/13591描述了通过微生物从棕榈基酯上立体选择性消除氢。
得到顺式-6-十六碳烯酸的一种化学合成途径描述于WO98/16104中。然而,该多级合成仅得到小收率且此外使用安全性存在问题的试剂,例如液氨和氰化钾。
本发明的目的是提供一种制备顺式-6-十六碳烯酸的新方法,该方法能以高Z/E选择性进行且不具有迄今已知的方法在安全性上的缺点。
R1OOC-(CH2)5-P(R2)3 +X- II其中取代基各自独立地具有下列含义:R1为C1-C12-烷基、芳基;R2为芳基;以及X-为无机酸或有机酸的阴离子等价物;与式III的癸醛
H3C-(CH2)8-CH=O III以维悌希(Wittig)反应方式反应,或a2)使式IV的三苯基鏻盐
H3C-(CH2)9-P(R2)3 +X- IV其中取代基R2和X-各自独立地具有上面所给的含义;与式V的醛
对R1可以提及的烷基是支化或未支化的C1-C12-烷基链,如甲基、乙基、正丙基、1-甲基乙基、正丁基、1-甲基丙基、2-甲基丙基、1,1-二甲基乙基、正戊基、1-甲基丁基、2-甲基丁基、3-甲基丁基、2,2-二甲基丙基、1-乙基丙基、正己基、1,1-二甲基丙基、1,2-二甲基丙基、1-甲基戊基、2-甲基戊基、3-甲基戊基、4-甲基戊基、1,1-二甲基丁基、1,2-二甲基丁基、1,3-二甲基丁基、2,2-二甲基丁基、2,3-二甲基丁基、3,3-二甲基丁基、1-乙基丁基、2-乙基丁基、1,1,2-三甲基丙基、1,2,2-三甲基丙基、1-乙基-1-甲基丙基、1-乙基-2-甲基丙基、正庚基、正辛基、正壬基、正癸基、正十一烷基和正十二烷基。优选的烷基是C1-C4-烷基,特别是甲基、乙基、正丙基和1-甲基乙基,非常特别优选甲基和乙基。
R1下的芳基应理解为是指在环体系中具有6-18个碳原子的芳环或环体系,例如苯基或萘基,其可以任选被一个或多个基团取代,所述基团例如为卤素如氟、氯或溴,氰基,硝基,氨基,C1-C4-烷基氨基,C1-C4-二烷基氨基,羟基,C1-C4-烷基,C1-C4-烷氧基或其他基团。优选苯基、甲氧基苯基和萘基。
R2下的术语芳基是指在膦和鏻盐中存在的常规芳基,如苯基、甲苯、萘基,在各种情况下任选被取代,优选苯基。
基团X-为无机酸或有机酸的阴离子等价物,优选强无机酸或有机酸的阴离子等价物。
术语强酸包括氢卤酸(特别是盐酸和氢溴酸),硫酸,磷酸,磺酸和其他具有类似离解度的无机酸或有机酸。就此而论,强有机酸还应理解为是指C1-C6-链烷酸。
特别优选选自如下的酸的阴离子:盐酸、氢溴酸、硫酸、磷酸、甲酸、乙酸和磺酸。非常特别优选Cl-、Br-、CnH2n+1-SO3 -(其中n=1-4)、Ph-SO3 -、p-Tol-SO3 -或CF3-SO3 -。
本发明尤其提供一种制备顺式-6-十六碳烯酸的方法,其中在工艺步骤a)中,使式II的三苯基鏻盐与式III的癸醛反应。
本发明方法的另一优选实施方案涉及使用式IIa的三苯基鏻盐
R1OOC-(CH2)4-P(Ph)3 +X- IIa其中取代基各自独立地具有下列含义:R1为C1-C4-烷基,特别是甲基、乙基、正丙基和1-甲基乙基;Ph为苯基;X-为强无机酸或有机酸的阴离子等价物,特别是Cl-、Br-、其中n=1-4的CnH2n+1-SO3 -、Ph-SO3 -、p-Tol(对甲苯)-SO3 -或CF3-SO3 -。
鏻盐II-IV反应得到式VI的顺式-6-十六碳烯酸酯可以在维悌希反应常用的条件下进行。
在步骤a)中的反应通常在-30℃至+50℃,优选-10℃至+30℃,特别优选+10℃至+25℃的温度下进行。
就此而论,可以首先将两种原料化合物(鏻盐和醛)引入溶剂中并加入碱或首先引入鏻盐的溶液、加入碱并随后仅加入醛的溶液。
可以使用的碱是维悌希缩合反应常用的所有碱,例如碱金属氢氧化物,如氢氧化钠、氢氧化钾或氢氧化锂;碱金属氢化物如氢化钠或氢化钾。
还适合用作碱的是有机锂化合物,如正丁基锂、叔丁基锂、苯基锂或碱金属氨化物,如氨基锂、氨基钾或氨基钠,二异丙基氨基锂以及碱金属六甲基二硅氮烷基化物(disilazide)。根据本发明用于维悌希反应的优选碱是六甲基二硅氮烷基化钠或六甲基二硅氮烷基化钾,以及氨基钾或氨基钠。
碱的用量通常为0.8-5mol,优选1-3mol/1mol所用式II或IV鏻盐。
适用于工艺步骤a)的溶剂尤其是芳烃如甲苯、二甲苯或苯,环状或开链醚,如二乙醚、二异丙醚、甲基叔丁基醚、1,4-二噁烷或THF,以及DMF或DMSO。优选的溶剂是甲苯、THF和/或DMSO。
当转化完全时,将反应混合物水解,并通过萃取从水溶液中取出形成的酯。
所用萃取剂有利的是己烷、庚烷或乙酸乙酯。然而,还可以在萃取时使用所有其他水不混溶性有机溶剂,如醚类、脂族烃类、卤代烃类和芳烃类。
溶剂,尤其DMF或DMSO在萃取过程中大量残留于水相中且还在水相中大量残留在维悌希反应中形成的三苯基氧化膦。
本发明方法的显著性在于下一事实:在工艺步骤a)中的维悌希反应以大于90/10的Z/E选择性进行,优选Z/E选择性为92/8-99/1,特别优选94/6-97/3。
工艺步骤b)中的皂化通常通过首先将顺式-6-十六碳烯酸酯引入C1-C6-醇,优选乙醇、正丙醇、异丙醇或丁醇,特别优选乙醇中并加入碱如碱金属或碱土金属氢氧化物的水溶液或含水醇溶液,优选氢氧化钠或氢氧化钾的含水乙醇溶液而进行。
在步骤b)中的反应温度在0℃至溶剂的沸点范围内,优选为10℃-100℃,特别优选为30℃-80℃。
用于酯的皂化的催化剂量为0.01-5mol%,优选0.02-1mol%,基于原料VI。
通过参考下列实施例来更详细地说明本发明方法。
实施例1
将112.7g(0.5mol)6-溴己酸乙酯(1)(99%浓度(strength))在回流下与132.5g(0.5mol)三苯基膦(2)(99%浓度)在600ml二甲苯中于1L两颈烧瓶中煮沸6小时。6小时后,冷却混合物并从有价值的粘稠产物中滗除二甲苯。将残余物用2×600ml甲苯煮沸并冷却,每次滗除甲苯。将残余的溶剂在旋转蒸发器上蒸除,得到181.1g玻璃状浅黄色粗产物。根据1H和13C-NMR分析,产物对应于化合物(3)。收率为理论值的76%。
向装备有桨式搅拌器、温度计和N2计泡计的2L四颈烧瓶中加入134.8g(0.25mol)根据实施例1得到的鏻盐(3),同时还加入37.3g(0.227mol)在680mlDMSO中的癸醛(4)。在搅拌下于20-25℃经15分钟滴加43.8g(0.227mol)95%浓度NaHMDS在226ml DMSO中的溶液。然后室温搅拌混合物24小时。然后将混合物导入1100ml 1N HCl水溶液和2000ml正己烷中。水相用1000ml正己烷再萃取一次。用5%浓度的NaHCO3水溶液和水各500ml洗涤合并的有机相,然后用Na2SO4干燥并在旋转蒸发器上浓缩。将残余物溶于1000ml正庚烷中并用5×100ml水/甲醇(1∶1v/v)洗涤。庚烷相用Na2SO4干燥,然后在旋转蒸发器上蒸除庚烷。将残余物转移到带硅胶的玻璃吸滤器中并用环己烷/乙酸乙酯(2/1)洗脱。在旋转蒸发器上蒸除溶剂,得到38.9g残余物。根据1H和13C-NMR分析,产物对应于化合物(5),95%Z-异构体,5%E-异构体。收率为理论值的35%。产物通过蒸馏提纯。
实施例3
向装备有磁力搅拌器、回流冷凝器和N2计泡计的100ml三颈烧瓶中加入3.0g粗制的顺式-6-十六碳烯酸乙酯(5)(6.16mmol),同时还加入37.8ml(37.8mmol)在乙醇中的氢氧化钾溶液(c=1mol/l)和18ml水。混合物回流2小时后,在旋转蒸发器上汽提大部分溶剂。向残余物中加入30ml冰水,用30ml乙酸乙酯萃取。有机相用4ml浓盐酸酸化。用水和饱和氯化钠溶液各5ml洗涤有机相并用Na2SO4干燥,在旋转蒸发器上蒸除溶剂。根据1H和13C-NMR分析,所得2.59g黄色物质对应于顺式-6-十六碳烯酸(6),95%Z-异构体,5%E-异构体。收率为理论值的95%。对顺式-6-十六碳烯酸的进一步提纯通过柱色谱法进行。所得产物的化学纯度大于95%。
Claims (6)
a1)使式II的三苯基鏻盐
R1OOC-(CH2)5-P(R2)3 +X- II其中取代基各自独立地具有下列含义:R1为C1-C12-烷基、芳基;R2为芳基;以及X-为无机酸或有机酸的阴离子等价物;与式III的癸醛
H3C-(CH2)8-CH=O III以维悌希反应形式反应,或
a2)使式IV的三苯基鏻盐
H3C-(CH2)9-P(R2)3 +X- IV其中取代基R2和X-各自独立地具有上面所给的含义;与式V的醛
R1OOC-(CH2)4-CH=O V其中R1具有上面所给的含义;以维悌希反应方式反应,以及
2.如权利要求1所要求的方法,其中在工艺步骤a)中使式II的三苯基鏻盐与式III的癸醛反应。
3.如权利要求2所要求的方法,其中使用式IIa的三苯基鏻盐
R1OOC-(CH2)4-P(Ph)3 +X- IIa其中取代基相互独立地具有下列含义:R1为C1-C4-烷基;Ph为苯基;X-为强无机酸或有机酸的阴离子等价物。
4.如权利要求1-3中任一项所要求的方法,其中X-为选自氢卤酸、硫酸、磷酸、甲酸、乙酸和磺酸的酸的阴离子等价物。
5.如权利要求4所要求的方法,其中X-为Cl-、Br-、其中n=1-4的CnH2n+1-SO3 -、Ph-SO3 -、p-Tol-SO3 -或CF3-SO3 -。
6.如权利要求1-5中任一项所要求的方法,其中工艺步骤a)中的维悌希反应以大于90/10的Z/E选择性进行。
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DE2001105799 DE10105799A1 (de) | 2001-02-07 | 2001-02-07 | Verfahren zur Herstellung von cis-Hexadec-6-ensäure |
DE2001108603 DE10108603A1 (de) | 2001-02-22 | 2001-02-22 | Verfahren zur Herstellung von cis-Hexadec-6-ensäure |
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