Doering-LaFlamme Reaction

Doering-LaFlamme reaction is also known as the Doering-LaFlamme allene synthesis in which alkenes are converts into allenes by insertion of a carbon atom.

Mechanism of Doering-LaFlamme Reaction

Reaction takes place in two steps. First step involves the addition of dihalocarbene to an olefin and the second step involves the reaction of the resulting substituted 1,1-dihalocyclopropane with R-Li or magnesium or sodium to produce allenes.