Retro-ene reactions and 2-alkylidenepyrrolidine formation from thermolyses of β-amino-olefins and β-aminoacetylenes
Abstract
Thermolyses of β-aminoacetylenes with a terminal acetylenic bond and of β-amino-olefins afford retro-ene reactions in which nitrogen acts as the hydrogen donor, whereas alkyl subsitution on the terminus of the acetylenic bond leads to a novel, facile cyclization to a 2-alkylidenepyrrolidine.