| 摘要 |
FIELD: organophosphorus compounds. SUBSTANCE: invention relates to synthesis of S-dialkyl-, alkylphenyl- and diphenylarsinous esters of 4-methoxyphenyldithiophosphonic acids of the formula (I) <EMI ID=0.86 HE=15 WI=27 TI=CHI> where Ar is 4-MeOC<SB>6</SB>H<SB>4</SB>; R is a lower alkyl, phenyl; <EMI ID=0.87 HE=3 WI=3 TI=CHI> is ethyl, phenyl. Reaction is carried out by interaction of 2,4-bis-(4-methoxyphenyl)-2,4-dithiooxo-1,3,2lambda ,4lambda -dithiadiphos- -phethane with alkyl or phenyl esters of dialkyl-, alkylphenyl- or diphenylarsinous acids of the formula <EMI ID=0.88 HE=3 WI=15 TI=CHI> where R, <EMI ID=0.89 HE=3 WI=3 TI=CHI> and <EMI ID=0.90 HE=3 WI=3 TI=CHI> as indicated above at 20 C in the presence of without solvent (benzene) followed by isolation of the end substances by the known procedures (benzene). EFFECT: simplified method, high yield of the pure end products. 3 ex
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