Phosphine-catalysed intermolecular cyclopropanation reaction between benzyl bromides and activated alkenes

Abstract

While phosphine-mediated reactions have been extensively explored over the past decades, the catalytic cyclopropanation reaction via a phosphonium ylide pathway has been significantly underdeveloped, and an intermolecular version still remains...

One-pot synthesis of multisubstituted spirocyclopropanes mediated by α-picoline

“…Because of the potential biological properties and application values, the synthesis of spirocyclopropane skeletons is of great importance in synthetic chemistry. 2…”