Collect. Czech. Chem. Commun. 1994, 59, 2109-2115

Studies of the Reaction of Triaminophosphines with α,β-Unsaturated Nitriles

Ibtisam T. Hennawy

National Research Centre, Dokki, Cairo, Egypt


Tris(dialkylamino)phosphines IIIa and IIIb react with furfurylidenemalonitrile (Ia) and its thiophene analogue Ib to give a mixture of 1 : 1 adducts IV and V. Compounds IV have aminophosphonium dipolar ion structure, while compounds V are the ylide forms. The ratio of the products depends on the reaction conditions. Some reactions of IV and V are described.