Development of a series of P(CH(2)N=CHR)(3) and trisubstituted 1,3,5-Triaza-7-phosphaadamantane ligands.

The synthesis and structure of a series of novel phosphine ligands derived from the condensation of P(CH2NH2) with aldehydes are described. Depending on the reaction conditions, either substituted tris(iminomethyl)phosphine, P(CH2N=CHR)3, or 1,3,5-triaza-7-phosphaadamantane structures substituted at the "lower rim", PTAR3, are obtained.