Alkali metal ion catalysis and inhibition in alkaline ethanolysis of O-Y-substituted-phenyl O-phenyl thionocarbonates: contrasting [M.sup.+] ion effects upon changing electrophilic centre from C=O to C=S

Abstract: Pseudo-first-order rate constants ([k.sub.obsd]) were measured for nucleophilic substitution reactions of O-Y-substituted-phenyl O-phenyl thionocarbonates (4a-4h) with alkali metal ethoxides (EtOM, M = Li, Na, or K) in anhydrous ethanol [...]