Enantiocontrolled synthesis of chiral propane-1,3-diol derivatives possessing fluorinated quaternary stereogenic centers
作者:Masataka Ihara、Tatsuo Kawabuchi、Yuji Tokunaga、Keiichiro Fukumoto
DOI:10.1016/0957-4166(94)80054-5
日期:1994.6
A general method for the preparation of chiral propane-1,3-diol derivatives possessing fluorinated quaternary stereogenic centers was established as follows. The diastereoselective alkylation of (1R,3R,4S)-8-phenylmenthyl hydrogen fluoromalonate 9, followed by the reduction of the resulting carboxylic acids 10 - 13 in two steps, provided the alcohols 14 - 17. After protection of the hydroxyl group with p-methoxybenzyl group, the phenylmenthyl esters 21 - 24 were converted into chiral propane-1,3-diols 25 and 30 - 32 via the acids 29.