ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 22, Number 5
JKCSEZ 22(5)
October 20, 1978 

Pseudo-first order rate constants kobs were determined for the reactions of naphthalenesulfonyl chlorides (1-NSC and 2-NSC) and anilines. The second order rate constant k2 and third order catalytic k3 were then determined from kobs. For 1-NSC peri-hydrogen effect was observed. The large Brønsted β and large negative slopes ρ for the Hammett plots were obtained. These results with the unsually low values of activation parameters were consistent with the SAN-elimination mechanism, but these can be equally well interpreted with the associative SN2 mechanism.