ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 31, Number 3
JKCSEZ 31(3)
June 20, 1987 

The effect of substituent in leaving group on the rates of reactions of phenacyl substituted-benzenesulfonates with pyridine was determined conductometrically in acetonitrile and in methanol at 35, 45, and 55℃, respectively. The reaction rate became faster in proportion to electron-attracting ability of substituent, which indicates that the substituent in leaving group can directly control reaction rate. It was shown that the specific to the carbonyl carbon as the rate-determining step.