作者:T. Jagadeeswar Reddy、Viresh H. Rawal
DOI:10.1021/ol006292q
日期:2000.8.1
[reaction: see text]Stereocontrolled syntheses of 5-oxosilphiperfol-6-ene (1) and silphiperfol-6-ene (2) have been accomplished in four and five steps, with overall yields of 32% and 26%, respectively, from 1-acetyl-3-methylcylopentene. The strategy features two pivotal reactions: (a) a Diels-Alder reaction between 1,3-dimethylcyclopentadiene and 1-acetyl-3-methylcyclopentene, which proceeds with remarkable
[反应:参见文本]通过四个步骤和五个步骤完成了5-氧代硅酚6烯(1)和硅酚6烯(2)的立体控制合成,总收率分别为32%和26%。 1-乙酰基-3-甲基环戊烯。该策略具有两个关键反应:(a)1,3-二甲基环戊二烯与1-乙酰基-3-甲基环戊烯之间的Diels-Alder反应,该反应具有显着的区域,内和非对映选择性,以及(b)分子内Paterno-Büchi反应使三喹烷骨架结合在一起。