Abstract

This review encompasses addition reactions of cyclopropenes proceeding with retention of the small ring as well as cascade transformations involving ring-opening. Formal nucleophilic substitution of halocyclopropanes operating via a dehydrohalogenation-addition mechanism with the formation of cyclopropene intermediates is also discussed. Relevant literature published in the period of 2005-2015 is surveyed.

Keywords: Cyclopropanes, cyclopropenes, nucleophilic addition, nucleophiles, strain release.