Spectrophotometric determination of basicity constants. Benzamides and phenylureas
Abstract
The basicity constants KBH+ of six 4-chlorobenzamides, four 4-methoxybenzamides, ten N-t-butylbenzamides, 3-bromo N-methylbenzamide, phenylurea, and seven substituted phenylureas have been evaluated in sulphuric acid at 25 °C. The protonation equilibria follow the HA acidity function.