FORMATION OF AMMONIOPHOSPHORANES BY TRANSANNULAR INTERACTION IN DIBENZAZAPHOSPHOCINE SYSTEM

Article abstract of DOI:10.1016/S0040-4039(00)85174-6

Dibenz<1,5>azaphosphocine 12-oxide derivatives (1a, 3) and their related compounds were prepared and NMR spectral change of these samples by the addition of SOCl2 or t-BuMe2SiOTf are reported.The NMR parameters (1H and 31P) are consistent with bicyclic phosphoranes for at least 1a' and 3', each contains a transannular hypervalent Cl-P-NMe bond.