Preparative Organic Chemistry
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ChemInform Abstract: Synthesis of 1-Alkoxy-2,2-dicyanocyclobutanes by High Pressure Promoted Polar (2 + 2)Cycloadditions of Enol Ethers with 1,1- Dicyanoalkenes.
First published: September 21, 1993
Abstract
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ChemInform Abstract
Enol ethers such as (I) undergo (2 + 2)cycloaddition reactions with the dicyanoalkenes (II) under a pressure of 12 kbar to give the cyclobutanes (III) stereoselectively. A mechanism is discussed. (15 examples).
