Process for preparing toluenesulfinates

An intermediate compound of the formula V1

• wherein:
• R is selected from the group consisting of —(C1-C6)alkyl, aryl and substituted aryl
• R2 is selected from the group consisting of C7-C20 alkyl;
• where;
• R10 is selected from the group consisting of halo, C1-C10 alkyl, C1-C10 alkoxy, —S—(C1-C10 alkyl) and halo (C1-C10)alkyl, and t is an integer from 0 to 5 both inclusive;
• R2 is [selected from the group consisting of hydrogen, halo, C1-C3 alkyl, C3-C4 cycloalkyl, C3-C4 cycloalkenyl, —O—(C1-C2 alkyl), —S—(C1-C2 alkyl), aryl, aryloxy, and HET;] a heterocyclic group selected from the group consisting of thiazole, isothiazole, oxadiazole, and imidazole;
• R5 is selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, halo(C1-C6)alkoxy, halo(C2-C6)alkyl, bromo, chloro, fluoro, iodo and aryl.