METHOD FOR PREPARING STERICALLY HINDERED PHOSPHORAMIDATES

摘要

STERCALLY HINDERED PHOSPHORAMIDATES SUCH AS N,N''-BIS[DI-(2,6-XYLENOXY) PHOSPHINYL]PIPERAZINE ARE PREPARED BY THE REACTION OF A STERICALLY HINDERED DIARYL CHOLOROPHOSPHATE,WITH A BASIC NITROGEN COMPOUN CONTAINING AT LEAST TWO BASIC N-H GROUPS, PREFERABLY A HETEROCYCLIC COMPOUND SUCH AS PIPERAZINE, IN THE PRESENCE OF AT LEAST ONE DIPOLAR APROTIC SOLVENT.