Preparation of o-alkyl s,s-dialkylphosphorodithioates

Details Preparation of o-alkyl s,s-dialkylphosphorodithioates Preparation of o-alkyl s,s-dialkylphosphorodithioates

C - Chemistry, Metallurgy

07

F

260/459.8

C07F 9/17 (2006.01)

Patent

CA 1292007

ABSTRACT PREPARATION OF O-ALKYL S,S-DIALKYLPHOSPHORODITHIOATES The O-alkyl S,S-dialkylphosphorodithioates, e.g. ethoprophos, are facilely prepared, in improved yields and having great purity, by reacting an alkylphosphate dihalogenide, e.g. a dichloride, with a 1.5 to 8 mol excess of a thiol, in the presence of a 0.1 to 4 mol excess of an acid acceptor, with both molar excesses being per mole of said dihalogenide.

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