N,N'-Dibenzyl-N,N'-dimethyl-N''-(p-tol-yl)phospho-ric triamide

The asymmetric unit of the title compound, C(23)H(28)N(3)OP, contains two independent mol-ecules with significant conformational differences. For example, the torsion angles N-C-C-C involving the N-benzyl moieties are 57.3 (7) and 11.6 (8)° in one mol-ecule and 76.5 (7) and 97.4 (7)° in the other. In each mol-ecule, the P atom exhibits a distorted tetra-hedral conformation [the bond angles at P are in the ranges 104.7 (2)-115.2 (2) and 105.1 (2)-115.1 (2)° in the two molecules], and the phosphoryl group and the N-H group adopt an anti orientation with respect to one another. In the crystal, mol-ecules are linked via N-H⋯O(P) hydrogen bonds, forming a chain parallel to the a axis.