Yu. V. Tomilov, I. V. Kostyuchenko, E. V. Shulishov
Apr 1, 1998
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Journal
Russian Chemical Bulletin
Abstract
The reaction of diazocyclopropane generatedin situ with vinyl bromide occurs as regioselective 1,3-dipolar cycloaddition to give 5-bromospiro(1-pyrazoline-3,1′-cyclopropane) in ∼60% yield. Reactions of the latter with nucleophilic reagents, which can occur both with retention and opening of the cyclopropane ring, were studied.