作者:Patrick Garibay、John Nielsen、Thomas Hoeg-Jensen
DOI:10.1016/s0040-4039(98)00176-2
日期:1998.4
beta-Keto carboxylic acids are known to decarboxylate readily. In our pursuit to synthesize beta-indolinyl propiophenones, we have exploited this chemistry as a mean of establishing a traceless handle. 2-Aroyl acrylic acids have been esterified to a trityl resin, after which Michael-type addition of indolines have been performed. Upon cleavage, the products are decarboxylated, and the beta-indolinyl propiophenones are isolated. The reaction conditions have been optimized, and a small library has been prepared. (C) 1998 Elsevier Science Ltd. All rights reserved.