One-pot synthesis of 2-aryl-3-alkoxycarbonyl chromones through a cascade Lewis acid-catalyzed aldehyde olefination/oxa-Michael addition/oxidation
作者:Ningning Wang、Shuying Cai、Chao Zhou、Ping Lu、Yanguang Wang
DOI:10.1016/j.tet.2012.11.008
日期:2013.1
were effectively constructed from aryl aldehydes and 3-(2-(methoxymethoxy)phenyl)propiolates via a cascade Lewis acid catalyzed phenol ether deprotection/aldehyde olefination/intramolecular oxa-Michael addition reaction, and a sequential oxidation. This four-step reaction could be conducted in one-pot with high atom efficiency.
通过级联路易斯酸催化的酚醚脱保护/醛烯化/分子内氧杂-迈克尔加成反应和顺序氧化反应,由芳基醛和3-(2-(甲氧基甲氧基)苯基)丙酸酯有效地构建了2-芳基-3-烷氧基羰基色酮。该四步反应可以在一个锅中以高原子效率进行。