Novel properties of new phosphatranes and silatranes

Abstract

The synthesis of the new pro-phosphatranes YP(MeNCH2CH2)3N (Y = lone pair, 0, S, Se, BH3 and CH3+) containing four-coordinate phosphorus, and the tbp phosphatranes YP(MeNCH2CH2)3N (Y = H+, BrCH2 and Cl+) are reported. New azasilatranes of the type YSiRNCH2CH2)3N (R = H, Me, SiMe3; Y = H, OMe, OEt) are also reported and the results of nucleophilic substitution studies of the labile hydrogen on the equatorial nitrogens are given.