to 2-indanones from aldehydes was established. The introduction of a triisopropylsilyl group greatly facilitated Meinwald rearrangement of the intermediate epoxides and alleviated the necessity of polysubstitution for the clean formation of indenes and cyclopentadienes via cyclodehydration of allylic alcohols; unprecedented freedom with respect to the product structure was thus achieved. The developed
建立了从醛到2-
茚满酮的高度方便的合成途径。
三异丙基甲
硅烷基的引入极大地促进了中间
环氧化物的迈因瓦尔德重排,并减轻了通过烯丙基醇的环化脱
水干净形成
茚满和
环戊二烯的多取代的必要性。这样就实现了产品结构方面前所未有的自由。所开发的方法也可以适用于形成二元环[7]环和二苯并亚砜的七元环的形成。