LiBF4: a mild and novel reagent for the OH insertion reactions of α-diazoketones
作者:J.S. Yadav、B.V.S. Reddy、P. Vishnumurthy
DOI:10.1016/s0040-4039(03)01361-3
日期:2003.7
Lithium tetrafluoroborate (10 mol%) is found to catalyze efficiently the O-H insertion reactions of alpha-diazoketones with various alcohols including benzylic, allylic, propargylic and cyclopropyl carbinols to produce the corresponding alpha-alkoxy ketones in excellent yields with high selectivity. A solution of 10 mol% of LiBF4 in acetonitrile provides a convenient reaction medium to carry out the O-H insertion reactions under mild and neutral conditions. (C) 2003 Elsevier Ltd. All rights reserved.