Abstract Rate data for reactions of XC 6 H 4 CSNMeC 6 H 4 Y in methanol at 373 K are presented. The thioamides are less reactive than their oxygen analogues. Linear Hammett plots were obtained for both series (series A: X= variable, Y= 4?-NO 2; series B: X= 4-NO 2, Y= variable), with p values similar to those obtained for related oxyamides. There is a general trend to higher activation energies but more favourable entropies in the ...
