PREPARATION OF PHOSPHORUS-CONTAINING INTERMEDIATES FOR HERBICIDAL USE

摘要

PREPARATION OF PHOSPHORUS-CONTAINING INTERMEDIATES FOR HERBICIDAL USE A process for the preparation of a compound of the formula (1) wherein R1 represents an optionally substituted hydrocarbon radical; R represents a hydrogen atom or a group within the definition of R1; R2 and R3 are such that OR2 and OR3 are hydrolysable groups; R8 represents a group of the formula Ar(R5)(R6)C- in which Ar is an optionally substituted aromatic group and R5 and R6 each represent hydrogen, alkyl, or Ar, which comprises the reaction of a compound of the formula: (II) with a compound of the formula: (III) wherein X represents a halogen.