Nucleophilic cleavages of acetals using organotitanium reagents. A new synthesis of chiral alcohols
作者:Atsunori Mori、Keiji Maruoka、Hisashi Yamamoto
DOI:10.1016/s0040-4039(01)81455-6
日期:1984.1
A highlychemo- and stereoselective cleavage of acetals derived from (−)-(2R,4R)-2,4-pentanediol with organotitanium reagents has been demonstrated. The reaction proceeds under mild conditions in excellent yield and high chemoselectivity to give, after removal of auxiliary, the chiral alcohols of high enantiopurities. In addition, complexation of chiral acetals and TiCl4 followed by treatment with