THE MOBILITY OF PROTONATED AMINOALCOHOLS - EVIDENCE FOR PROTON-INDUCED CYCLIZATION

The reduced mobility in air, at 200-degrees-C, of protonated aminoalcohols was measured by ion mobility spectrometry (IMS). The relatively high mobilities that were measured indicated that proton-induced cyclization took place in the aminoalcohols, similar to what was previously observed in diamines. This conclusion is in agreement with the proton affinities (PA) of these compounds that indicated that the proton was more strongly attached to the molecule than in normal aliphatic amines. It was also found that the alpha, omega = aminoalcohols had slightly higher mobilities than their corresponding 1, 2 isomers, further supporting the conclusion for proton-induced cyclization.