CAS: 1406-18-4; Tocopherol

专利信息

专利号:US-4125735-A
优先权日:1975-03-20
标 题 :Synthesis of esters of acetylenic alcohols
发明人：CLOSE RALPH E; OROSHNIK WILLIAM
权利人:SCM CORP
摘要:A process for the synthesis of perfume products, Vitamin E and intermediates described herein involving a coupling reaction. For instance, a process for the synthesis of dehydrophytol and Vitamin E comprising forming a C15 acetylene from hexahydropseudoionone and then coupling said acetylene with 1-acetoxy-4-chloro-3-methylbut-2-ene to form a C20 acetoxy-enyne. The latter is readily subjected to partial hydrogenation and saponification in that order to form a dehydrophytol, a useful intermediate for the synthesis of Vitamin E and other products.

专利号:US-4185154-A
优先权日:1977-05-17
标 题 :Synthesis of vitamin E
发明人：OLSON GARY L; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.

专利号:US-4310465-A
优先权日:1977-05-17
标 题 :Synthesis of vitamin E and quinone intermediates
发明人：OLSON GARY L; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.

专利号:US-10695450-B2
优先权日:2016-07-26
标 题 :Synthesis of a radioactive agent composition
发明人：VIOT GILLES
权利人:LABORATOIRES CYCLOPHARMA
摘要:The present invention relates to a method for the synthesis of a radioactive agent composition comprising at least a purification step carried out in the presence of an antioxidant, to the composition obtained by this method comprising radioactive agent and excipient, and to the method for preventing radiolysis of radioactive agent composition comprising the synthesis of said radioactive agent according to the method of the invention.

专利号:US-4182719-A
优先权日:1977-05-17
标题 :Synthesis of optically active vitamin E
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:Synthesis of optically active vitamin E from 2-methyl-5-oxotetrahydro-2-furoic acid including intermediates in this synthesis.

专利号:US-4277610-A
优先权日:1975-01-27
标 题 :Synthesis of 2,6,10-trimethyl-undecan-1-ol
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, β-hydroxy-isobutyric acid including intermediates in this synthesis.