Abstract
Abstract The synthesis of cyclobutenes by metal‐catalyzed intermolecular [2+2] cycloaddition of alkynes with alkenes is normally restricted to strained bicyclic olefins. This article describes gold(I)‐catalyzed intermolecular [2+2] cycloaddition of terminal alkynes with differentlysubstituted alkenes as an important method for the formation of cyclobutenes.
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