From 2-Phosphino-2H-Phosphirene to 1-Phosphino-1H-Phosphirene, 1λ5,2λ3-Diphosphete, and 1,2-Dihydro-1λ3,2λ3-Diphosphete: an Experimental and Theoretical Study

Abstract

The stable phosphinosilylcarbene 1 reacts with tert-butylphosphaalkyne quantitatively to afford the 2H-phosphirene 2, which rearranges thermally into the 1λ5,2λ3-diphosphete 3, and photochemically into the 1H-phosphirene 4.