Grignard additions to α,β-unsaturated dioxolanones: preparation of chiral allylic alcohols and protected α-hydroxy aldehydes
作者:B. Heckmann、C. Mioskowski、Rama K. Bhatt、J.R. Falck
DOI:10.1016/0040-4039(96)00058-5
日期:1996.2
α,β-Unsaturated dioxolanones derived from mandelic acid smoothly add most Grignardreagents with good to excellent regio- and diastereoselectivities. The adducts are converted to chiral secondary alcohols by peroxidation at low temperature or to protected α-hydroxy aldehydes via ozonolysis.