Rearrangement approaches to cyclic skeletons. V.
作者:Tadao Uyehara、Jun-ichi Yamada、Toshiaki Furuta、Tadahiro Kato、Yoshinori Yamamoto
DOI:10.1016/s0040-4020(01)87741-3
日期:——
or hydrogen with inversion of the absolute configuration via the two-step sequence consists of Grignard reaction or reduction of the carbonyl followed by pinacol-type rearrangement. This transformation was applied to the total synthesis of the [6-7] fused-ring sesquiterpene widdrol ((±)-9). The stereochemistry of the tertiary alcohol of 9 was specifically controlled by employing a bridge-cleaving method
双环[3.2.2] non-6-en-2-ones的C-1甲氧基被烷基,烯基和芳基或氢取代,并通过格氏反应组成的两步式转化成绝对构型或羰基还原,然后是频哪醇型重排。将该转化应用于[6-7]稠环倍半萜烯wi((±)-9)的全合成。9的叔醇的立体化学是通过采用桥裂解法具体控制的。