Catalysis by hydrogen halides in the gas phase. Part XXI. Butylamine and hydrogen bromide

Abstract

The hydrogen bromide-catalysed decomposition of t-butylamine into isobutene and ammonia has been studied in the temperature range 395–460°C. Individual runs follow the first-order rate law. The reaction is homogeneous, of the first order in each reagent, and molecular. Possible transition states for the catalysed reaction are examined. The variation of rate constant with temperature is described by the equation k₂= 10^12·21 exp (–29,329/RT) cm³ mol^–1 s^–1