Chem. J. Chinese Universities ›› 1985, Vol. 6 ›› Issue (4): 333.

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Study of Geometric Isomers of Some Vinylphosphate Insecticides (Ⅲ)—Isomerization of (Z)-to (E)-Isomer of O,O-Diethyl-O-(1-Ethoxycarbonyl-1-Propen-2-yl) Thiophosphate

Shao Ruilian, Dong Xiyang, Zhang Chunzao, Li Jifeng   

  1. Institute of Elemento-Organic Chemistry, Nankai University, Tianjin
  • Received:1983-09-22 Online:1985-04-24 Published:1985-04-24

Abstract: The isomerization of O, O-diethyl-O-(1-ethoxycarbonyl-1-propen-2-yl)thiopho-sphate (I) has been studied. The Zisomer of (I) was converted into mixtures with higher E/Zratio by treatment with p-toluenesulfonic acid, borontrifluoride and acidic ion exchange esin. The E-isomer is insecticidally more active than the corresponding Z-isomer.

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