An Improved Procedure for the Preparation of the<i>O</i>,2-Dianion of Allyl Alcohol
作者:Sayee G. Hegde、David C. Myles
DOI:10.1080/00397919708006818
日期:1997.6
Abstract An improved procedure for the preparation of the O,2-dianion of allylalcohol is described. The use of the magnesium alkoxide of 2-bromopropen-1-ol instead of the known lithium salt, suppresses dehydrohalogenation upon treatment with tert-butyl lithium and furnishes the dianion. Addition of this dianion to a variety of carbonyl compounds affords the expected products in good yield.