Aminoalkylphosphonic acids on heating with hexamethyldisilazane yield tris(trimethylsilyl) derivatives, which are used as amino components for the synthesis of N-acylated phosphonopeptides with free phosphonic group. These transformations proceed with complete retention of the stereoconfiguration of aminophosphonate moiety.
OSAPAY, GEORGE;SZILAGYI, ILDIKO;SERES, JENO, TETRAHEDRON, 43,(1987) N 13, 2977-2983