Transferts Protoniques de Sels d'Ammonium Substitues—VII: Deprotonation de Sels de N-Methylpiperidinium en Solution Aqueuse

The deprotonation of N-methylpiperidinium salts BH_a^⊕, observed by means of the coalescence of the N-methyl doublet, is operated either by OH^?, or by the conjugate base B. The action of OH^? is predominant as the steric hindrance increases around H_a and is twice as fast in the axial direction.