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Synthesis of cyclobutylideneacetic esters via aluminum chloride promoted [2+2] cycloadditions of ethyl 2,3-butadienoate to olefins

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
22
Issue
21
Identifiers
DOI: 10.1016/s0040-4039(01)92877-1

Abstract

Abstract In the presence of AlCl 3, ethyl 2,3-butadiemoate reacts with a variety of olefins, including simple unactivated cycloalkenes, to give cyclobutylideneacetic esters at room temperature. The cycloaddition is regioselective and stereoselective.

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