| abstract |
Organo phosphorus cpds. of formula: in which HAL is Cl or Br; Y is O or S; Z is O, S or -N-R2; R1 is an aliphatic, cycloaliphatic, aromatic or heterocyclic radical of valency in which may be substd.; R2 is H or monovalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical which may be substd; R2 is H or monovalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical which may be substituted; m is 1 or 2 are prepd. by reacting 1 mole of a cpd. of formula: with n moles of a cpd. of formula C(CH2Hal)2(CH2OH)2. |