Article ID Journal Published Year Pages File Type
5218890 Tetrahedron 2013 6 Pages PDF
Abstract

An efficient and practical synthetic method for the functionalized 2-pyrrolidinones was successfully developed via the domino reactions of ethyl glyoxylate and acetylenedicarboxylate with 2 M arylamines in the presence of benzoic acid as catalyst. When two kinds of amines were used in the reaction, the stronger nucleophilic aliphatic amine preferentially added to acetylenedicarboxylate to form the reactive intermediate β-enamino ester and the reaction showed high regioselectivity.

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Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry