CAS: 1113-21-9; (E,E)-3,7,11,15-Tetramethyl-1,6,10,14-Hexadecatetraen-3-Ol

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专利信息

专利号:US-4061660-A
优先权日:1975-09-29
标 题 :Process for synthesis of coenzyme Q compounds
发明人：KIJIMA SHIZUMASA; YAMATSU ISAO; MINAMI NORIO; INAI YUICHI
权利人:EISAI CO LTD
摘要:A process for the synthesis of 2,3-dimethoxy-5-methyl-6-substituted-1,4-benzoquinones having the formula: ##STR1## wherein R is ##STR2## in which n is an integer of 0 to 9, and A and B are hydrogens or A--B is a direct valence bond between the carbon atoms to which they are attached, n Characterized by reacting 2-methyl-4,5,6-trimethoxyphenol with an aryl boronic acid, a lower alkyl boronic acid or an acid anhydride thereof to obtain a 2-methyl-4,5,6-trimethoxyphenol ester of boric acid, reacting the resulting ester with an n-prenol or iso-prenol having the formula: ##STR3## wherein R is as defined above, OR A REACTIVE DERIVATIVE OF SAID N- OR ISO-PRENOL, IN THE PRESENCE OF A SILICA-ALUMINA COMPOUND, TO OBTAIN A 2-METHYL-3-SUBSTITUTED-4,5,6-TRIMETHOXYPHENOL ESTER OF BORIC ACID, AND HYDROLYZING THE THUS-OBTAINED ESTER AND TREATING THE RESULTING 2-METHYL-3-SUBSTITUTED-4,5,6-TRIMETHOXYPHENOL HAVING THE FORMULA: ##STR4## wherein R is as defined above, WITH AN OXIDIZING AGENT.

专利号:US-2024228454-A1
优先权日:2021-04-28
标 题 :Ring closure of benzoquinones containing an unsaturated side chain using a base in two-phase system
发明人：BONRATH WERNER; KUENZI ROLF
权利人:DSM IP ASSETS BV
摘要:The present invention relates to the formation of compound of the formula (I) by a ring closure reaction of the compound of the formula (II) in the presence of a base in a two-phase system. It has been found that this reaction is very efficient and offers for example an efficient pathway for the synthesis of 3,4-dehydro-α-tocotrienol respectively a-tocotrienol and a-tocopherol.

专利号:US-4062879-A
优先权日:1975-09-29
标 题 :Process for synthesis of coenzyme Q compounds
发明人：KIJIMA SHIZUMASA; YAMATSU ISAO; MINAMI NORIO; INAI YUICHI
权利人:EISAI CO LTD
摘要:A process for synthesizing 2,3-dimethoxy-5-methyl-6-substituted-1,4-benzoquinones having the formula: ##STR1## wherein R is ##STR2## in which n is an integer of 0 to 9, and A and B are hydrogens or taken together form a valence bond, n In which 2-methyl-4,5,6-trimethoxyphenol is reacted with boric acid or a reactive derivative thereof to obtain a 2-methyl-4,5,6-trimethoxyphenol ester of boric acid, reacting the resulting ester with an n-prenol or iso-prenol having the formula: ##STR3## wherein R is as defined above, OR A REACTIVE DERIVATIVE OF SAID N- OR ISO-PRENOL, IN THE PRESENCE OF A SILICA-ALUMINA COMPOUND, TO OBTAIN A 2-METHYL-3-SUBSTITUTED-4,5,6-TRIMETHOXYPHENOL ESTER OF BORIC ACID, AND HYDROLYZING THE THUS-OBTAINED ESTER AND TREATING THE RESULTING 2-METHYL-3-SUBSTITUTED 4,5,6-TRIMETHOXYPHENOL HAVING THE FORMULA: ##STR4## wherein R is as defined above, with an oxidant.

专利号:US-2004249219-A1
优先权日:2000-07-05
标题 :Method of making teprenone
发明人：SAUCY GABRIEL G
摘要:The invention is directed to an efficient and economical method of making teprenone. Teprenone is synthesized by converting geranylgeraniol to teprenone by a novel route. The method of synthesis can begin with geranylgeraniol obtained from a biological source such as fermentation of a microorganism capable of producing geranylgeranyl or enzymatic synthesis in a cell free system to produce predominantly the 5E isomer of teprenone. The chemical synthesis proceeds with retention of configuration such that the teprenone produced has the isomeric configuration of the geranylgeraniol starting material.

专利号:CN-105647896-A
优先权日:2016-02-04
标题 :A protein related to the synthesis of terpenes and its application

专利号:CN-105647897-B
优先权日:2016-02-04
标题:A protein related to the synthesis of terpenes and its application