Preparation of phosphorus-containing intermediates for...

Details Preparation of phosphorus-containing intermediates for... Preparation of phosphorus-containing intermediates for...

C - Chemistry, Metallurgy

07

F

260/501.1, 260/4

C07F 9/38 (2006.01) C07F 9/40 (2006.01)

Patent

CA 1244461

ABSTRACT PREPARATION OF PHOSPHORUS-CONTAINING INTERMEDIATES FOR HERBICIDAL USE A process for the preparation of a compound of the formula Image (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: Image (II) with a compound of the formula: Image (III) wherein X represents a halogen.

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