Stereocontrolled synthesis of substituted tetrahydropyrans from 1,3-dioxan-4-ones
作者:Nicos A. Petasis、Shao-Po Lu
DOI:10.1016/0040-4039(95)02114-0
日期:1996.1
Conversion of aldehydes to 1,3-dioxan-4-ones, followed by methylenation with dimethyl titanocene gave the corresponding vinyl acetals which could undergo a stereocontrolled aluminum-mediated rearrangement to afford substituted tetrahydropyrans.
将醛转化为1,3-
二恶烷-4-酮,然后用
二甲基二茂钛进行亚甲基化,得到相应的
乙烯基缩醛,该
缩醛可以进行立体控制的铝介导的重排,从而得到取代的
四氢吡喃。