Regioselective synthesis and side-chain metallation and elaboration of 3-aryl-5-alkylisoxazoles
作者:Leonardo Di Nunno、Antonio Scilimati、Paola Vitale
DOI:10.1016/s0040-4020(02)00125-4
日期:2002.3
A number of 3-aryl-5-alkylisoxazoles have been synthesized in high yields by reacting arylnitrile oxides with free enolate ions regioselectively obtained by metallation of various alkyl methyl ketones with LDA in THF at -78degreesC followed by dehydration. Investigations concerning regioselective side-chain metallation and elaboration of one of them (3-phenyl-5-ethylisoxazole) have also been carried out. (C) 2002 Elsevier Science Ltd. All rights reserved.