New route to the synthesis of the illudane skeleton by Michael–Michael-elimination reaction
作者:Kazuo Tokuzaki、Yasuhiro Kanemitu、Takehiko Yoshimitsu、Hiroto Nagaoka
DOI:10.1016/s0040-4039(00)00974-6
日期:2000.7
A new route to the synthesis of an optically active illudane skeleton from (R)-(−)-pantolactone (4) is established. The tricyclic ring system was constructed by Michael–Michael-elimination reaction of the enolate of (3S,5R)-3-(tert-butyldimethylsilyloxy)-5-methoxymethyloxy-1-propionylcyclopentene (10) with ethyl cyclopropylidenacetate (3).
建立了从(R)-(-)-泛内酯(4)合成旋光性伊杜烷骨架的新途径。通过(3 S,5 R)-3-(叔丁基二甲基甲硅烷氧基)-5-甲氧基甲氧基-1-丙酰基环戊烯(10)的烯醇化物与环丙基亚丙基乙酸乙酯(3)的迈克尔-迈克尔消除反应构建三环系统。