Synthesis of 1,2,3-Substituted Pyrroles from Propargylamines via a One-Pot Tandem Enyne Cross Metathesis–Cyclization Reaction
作者:Helene Chachignon、Nicolò Scalacci、Elena Petricci、Daniele Castagnolo
DOI:10.1021/acs.joc.5b00222
日期:2015.5.15
Enyne cross metathesis of propargylamines with ethyl vinyl ether enables the one-pot synthesis of substituted pyrroles. A series of substituted pyrroles, bearing alkyl, aryl, and heteroaryl substituents, has been synthesized in good yields under microwave irradiation. The reactions are rapid and procedurally simple and also represent a facile entry to the synthetically challenging 1,2,3-substituted
炔丙基胺与乙基乙烯基醚的烯炔交叉易位能够一锅合成取代的吡咯。在微波辐射下,以高收率合成了一系列带有烷基,芳基和杂芳基取代基的取代吡咯。该反应是快速的并且程序上简单的,并且也代表了容易合成的具有挑战性的1,2,3-取代的吡咯的入口。通过将吡咯转化为3-甲基吡咯啉以及由复分解反应引起的3-甲基取代基的衍生化,进一步证实了该方法学的价值。