O,S-dialkyl-O-cyanomethylphenylthio-phosphates and -dithiophosphates
 Thiolphosphoric acid esters of the formula ##EQU1## wherein R.sub.1 represents methyl or ethyl, PA1 R.sub.2 represents propyl or butyl, PA1 R.sub.3 is a radical having the formula: ##SPC1## In which PA1 R.sub.4 represents allyl, methallyl, -CH.sub.2 CN, or ##EQU2## R.sub.5 represents hydrogen, halogen, C.sub.1 -C.sub. -alkyl, nitro, cyano, methylmercapto or C.sub.1 -C.sub.5 carboalkoxy, PA1 R.sub.6 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl or -COCH.sub.3, PA1 X represents oxygen or sulphur, and PA1 m and n each denote the number 1 or 2, PA1 Process for their production and their use in the control of pests. 
Ciba-Geigy AG
A C C
A01N C07F C07F
inventional inventional inventional
Paul L. Alexis A.
Valint, Jr. Oswald