| abstract |
A process is described for the preparation of 3-alkylsulfinylbenzoyl derivatives of the formula (IIIa) by reaction of 3-alkylsulfinylbenzoic acids of the formula (Ib) with compounds of the formula (II) in the presence of a chlorinating agent and a base. n n n n n n n n n n In the formulae specified above, Y is a radical such as pyrazolyl and cyclohexanedionyl. R 1 , R 2 and R 3 are radicals such as halogen, nitro, cyano and alkyl. |