2-METHOXY-3,6-DICHLOROBENZYL ALCOHOL AND ITS ESTERS, HAVING APHIDICIDAL AND HERBICIDAL ACTIVITYAND PROCESS FOR PREPARING SAME

摘要

The invention comprises compounds of the formula FORM:1101396/C2/1 where M is H or COR where R contains 1-18 carbon atoms and is alkyl, haloalkyl, alkylthio or FORM:1101396/C2/2 where Y is -CH2-, -CH2O-, -CH(Z)-O-or -S-, n is 0 or 1, Z is alkyl of 1-3 carbon atoms and X1-X3 are H, halogen, alkyl or alkoxy. 2 - Methoxy -3,6 - dichlorobenzyl alcohol is prepared by reacting methyl-2-methoxy -3,6-dichlorobenzoate with lithium aluminium hydride in anhydrous ether. The alcohol is reacted with an acid chloride of the formula RCOCl to give the esters.ALSO:Herbicidal and aphicidal compositions comprise an inert carrier and an active ingredient of the formula FORM:1101396/A5-A6/1 where M is H or COR, wherein R contains 1-18 carbon atoms and is alkyl, haloalkyl, alkylthio or FORM:1101396/A5-A6/2 where Y is -CH2-, -CH2O-, -CH(2)-O- or -S-, n is 0 or 1, 2 is alkyl or 1-3 carbon atoms, X1-X5 are H, halogen, alkyl or alkoxy. The compositions may be solids such as dusts, granules or wettable powders, or liquids such as solutions in emulsifiable concentrates. The compositions may also contain other pesticides, spreaders, adhesives, stickers, fertilizers, activators or synergists.