The stable (phosphino)(silyl)carbene as a useful building block: Synthesis and reactivity of 2-phosphorus-substituted 2H-azirines

Article abstract of DOI:10.1002/chem.19970031106

[Bis(dicyclohexylamino)phosphino]trimethylsilylcarbene (1) reacts with benzonitrile leading to the corresponding 2-phosphino-2H-azirine 3 in 85% yield. Treatment of 3 with trifluoromethanesulfonic acid, methyl trifluoromethanesulfonate, or elemental sulfu