Iron-catalyzed cascade reaction of ynone with o-aminoaryl compounds: a Michael addition–cyclization approach to 3-carbonyl quinolines
作者:Hongfeng Li、Xiaolei Xu、Jingyu Yang、Xin Xie、He Huang、Yanzhong Li
DOI:10.1016/j.tetlet.2010.11.106
日期:2011.1
An efficient iron-catalyzed cascade Michael addition-cyclization of o-aminoaryl compounds including o-aminoaryl aldehydes, o-aminoaryl ketones, and o-aminobenzyl alcohols with ynones for the synthesis of 3-carbonyl quinolines is reported. The reactions proceed to afford 3-carbonyl quinoline derivatives with or without substituent at the C-4 position in good to high yields using Iron(III) chloride hexahydrate as the catalyst in the air. (C) 2010 Elsevier Ltd. All rights reserved.