First Evidence of Proline Acting as a Bifunctional Catalyst in the Baylis–Hillman Reaction Between Alkyl Vinyl Ketones and Aryl Aldehydes
作者:Michelangelo Gruttadauria、Francesco Giacalone、Paolo Lo Meo、Adriana Mossuto Marculescu、Serena Riela、Renato Noto
DOI:10.1002/ejoc.200701112
日期:2008.3
Proline in the presence of sodium hydrogen carbonate has been found to be an effective catalyst for the Baylis–Hillman reaction between methyl or ethylvinyl ketone and aryl aldehydes. Screening of several amine catalysts showed that an ionizable carboxylic function directly linked to the secondary amine catalyst plays an important role in the synthesis of the desired product in good yield. The data