Abstract: Ester derivatives of N-arylsulfinyl-N-phosphonomethylglycinates useful as herbicides. Also disclosed is a process for preparing the same, herbicidal compositions containing the same and herbicidal methods employing such glycinates as herbicidal compositions.

Abstract: This disclosure relates to arylsulfenyl derivatives of benzyl and aryl esters of N-phosphonomethylglycines. This disclosure further relates to herbicidal compositions containing arylsulfenyl derivatives of benzyl and aryl esters of N-phosphonomethylglycines, to the use thereof, and to herbicidal methods employing such compounds and compositions.

Abstract: There are described pesticidal compositions comprising one or more compounds of the formula I, ##STR1## in which Ra is a group R.sup.2 or --OR.sup.2,E is oxygen or sulphur,Rm is --O.sup..crclbar. M.sup..sym. or --NRyRz,M.sup..sym. is one equivalent of an agriculturally acceptable cation,R.sup.1 and R.sup.2, which may be the same or different, each represent hydrogen, alkyl, alkenyl, alkynyl or aryl; the alkyl, alkenyl, alkynyl or aryl optionally being substituted by one or more halogen, alkoxy, nitro, alkyl, --CF.sub.3, nitrile, or carboxylic acid or a salt, ester, or amide thereof, andRy and Rz, which may be the same or different, each represent hydrogen or alkyl,or an agriculturally acceptable derivative thereof.There are also described methods for making and using compounds of formula I.