Stereospecific Synthesis of (2<i>Z</i>,4<i>E</i>,6<i>E</i>)-3,7,11-Trimethyl-2,4,6,10-dodecatetraene [<i>trans</i>(C<sub>10</sub>)-Allofarnesene]
作者:Norio Miyaura、Hiroshi Suginome、Akira Suzuki
DOI:10.1246/bcsj.55.2221
日期:1982.7
The stereospecific synthesis of the title acyclic sesquiterpene, isolated from Perilla frutscens f. viridis Makino (Japanese name, Aojiso) by the palladium-catalyzed cross-coupling of 2-(4,8-dimethyl-1,3,7-nonatrienyl)-1,3,2-benzodioxaborole with (Z)-2-bromo-2-butene, is described. The benzodioxaborole was prepared by the hydroboration of 4,8-dimethyl-3,7-nonadien-1-yne, newly prepared via three steps from geranial, with 1,3,2-benzodioxaborole.
本文描述了从紫苏(Perilla frutscens f. viridis Makino,日本名Aojiso)中分离出的标题为无环倍半萜的立体选择性合成,该合成是通过钯催化2-(4,8-二甲基-1,3,7-壬三烯基)-1,3,2-苯并二氧硼烷与(Z)-2-溴-2-丁烯的交叉偶联反应实现的。苯并二氧硼烷是通过4,8-二甲基-3,7-壬二烯-1-炔的氢硼化反应制备的,该反应是通过从香叶醛到1,3,2-苯并二氧硼烷的三个步骤新制备的。