Ee. Nifantiev et al., HIGHER 1,3,2-DIAZAPHOSPHOCYCLANES - V - 4,5-6,7-DIBENZO-1,3,2-DIAZAPHOSPHEPANES, Phosphorus, sulfur and silicon and the related elements, 123, 1997, pp. 89-110
The synthesis, structure and chemical features of a new class of tricy
clic phosphorus-containing heterocycles are reported. Special attentio
n is paid to the dynamics of molecules and their tendency to enter int
o elimination reactions. A possibility to synthesize relatively stable
dibenzo-1,3,2-diazaphosphepene containing a two-coordinated phosphoru
s atom is considered.