METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENOL AND METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENYL CARBOXYLATE COMPOUND
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20190194099A1
公开(公告)日:2019-06-27
Methods selectively and efficiently produce 3,7-dimethyl-7-octenol and a carboxylic acid ester thereof. More specifically, a method produces 3,7-dimethyl-7-octenol, including steps of: subjecting a 3-methyl-3-butenyl nucleophilic reagent (2) and a 1,3-dihalo-2-methylpropane compound (3) to a coupling reaction to obtain a 2,6-dimethyl-6-heptenyl halide compound (4); converting the compound (4) into a 2,6-dimethyl-6-heptenyl nucleophilic reagent (5); and subjecting the nucleophilic reagent (5) to an addition reaction with at least one electrophilic reagent selected from the group made of formaldehyde, paraformaldehyde and 1,3,5-trioxane, followed by a hydrolysis reaction to obtain 3,7-dimethyl-7-octenol (6); and the other method.
方法选择性和高效地产生3,7-二甲基-7-辛烯醇及其羧酸酯。更具体地,一种方法产生3,7-二甲基-7-辛烯醇,包括以下步骤:将3-甲基-3-丁烯基亲核试剂(2)和1,3-二卤代-2-甲基丙烷化合物(3)进行偶联反应,得到2,6-二甲基-6-庚烯基卤化物化合物(4);将化合物(4)转化为2,6-二甲基-6-庚烯基亲核试剂(5);将亲核试剂(5)与甲醛、多聚甲醛和1,3,5-三噁烷等羟基试剂中至少一种亲电试剂进行加成反应,然后进行水解反应,得到3,7-二甲基-7-辛烯醇(6);以及另一种方法。