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Theory-Guided Discovery of Unique Chemical Transformations of Cyclopropenes

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posted on 05.01.2006, 00:00 by Robin A. Weatherhead-Kloster, E. J. Corey
Chiral 2-cyclopropenyl-4-tolyl sulfones, available by the [2 + 1]-cycloaddition of tosyldiazomethane to acetylenes under catalysis by the Rh(II) complex 1, provide a number of unusual transformations and useful chiral products. This chemistry is dominated by the unusual strain and reactivity of the cyclopropene ring system.