KINETICS OF REACTION OF SOME 3-SUBSITUTED AND 5-SUBSTITUTED 2-THENOYL AND ORTHO-BENZOYL AND PARA-BENZOYL CHLORIDES WITH ANILINE IN BENZENE

The rate of the reaction of some 3-substituted 2-thenoyl chlorides with aniline is measured in benzene at different temperatures, in comparison with the corresponding ortho-substituted benzoyl chlorides. For comparison are also reported the rate constants for 5-substituted 2-thenoyl chlorides and pars-substituted benzoyl chlorides. Thienyl compounds react slower than phenyl derivatives. The 3-substituted 2-thenoyl and ortho-substituted benzoyl chloride reactions are faster than those of the corresponding 5- and para-derivatives.