A. Delacruz et al., THE SYNTHESIS, STRUCTURE AND PROPERTIES OF DIAZAPHOSPHOLES - REAGENTSAND LIGANDS FOR ASYMMETRIC-SYNTHESIS, Tetrahedron, 54(35), 1998, pp. 10513-10524
Reaction of C-2 diamines with PCl3 and Et3N in toluene, followed by wa
ter or hydrogen sulfide, gave a series of cyclic phosphorous acid diam
ides (diazaphosphole oxides) and thiophosphorous acid diamides (diazap
hosphole sulfides), respectively. Similarly, reaction of diamines with
phenyl dichlorophosphine gave phenyl diazaphospholes. The synthesis,
properties, and structure of these diazaphospholes are reported. (C) 1
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