A new reaction involving 1,5-diazabicyclo[4.3.0]non-5-ene as a nucleophile and a two proton donor
Abstract
1,5-Diazabicyclo[4.3.0]non-5-ene (DBN) reacts at both phosphorus atoms of the (phosphino)(P-chlorophosphonio)carbene 1a affording the cationic unsaturated tricyclic adduct 5.