Highly regioselective diels-alder reactions of 2-trimethylsilylmethyl- 1,3-butadiene catalyzed by a lewis acid and applications to syntheses of terpenes
作者:Akira Hosomi、Hirokazu Iguchi、Jun-ichi Sasaki、Hideki Sakurai
DOI:10.1016/s0040-4039(00)86886-0
日期:1982.1
2-Trimethylsilylmethyl-1,3-butadiene undergoes highly regioselective Diels-Alder reactions with dienophiles such as acrolein and methyl vinyl ketone catalyzed by aluminum chloride in which the “para” isomers are obtained almost exclusively. The adducts are converted readily to a variety of naturally occurring mono and sesquiterpenes.
2-三甲基甲硅烷基甲基-1,3-丁二烯与亲二烯(如丙烯醛和甲基乙烯基酮)通过氯化铝催化发生高度区域选择性的Diels-Alder反应,其中几乎完全获得“对”异构体。加合物易于转化为各种天然存在的单倍体和倍半萜。