Protiumdeuterium exchange of alkylated benzenes in dilute acid at elevated temperatures

Benzene (1), toluene (2), o-xylene (3), m-xylene (4), p-xylene (5), 1,2,3-trimethylbenzene (6), 1,2,4-trimethylbenzene (7), 1,3,5-trimethylbenzene (8), 1,2,3,4-tetramethylbenzene (9), 1,2,3,5-tetramethylbenzene (10), 1,2,4,5-tetramethylbenzene (11), pentamethylbenzene (12), hexamethylbenzene (13), hexaethylbenzene (14), ethylbenzene (15), and tetralin (16) have been labelled with deuterium by the high temperature – dilute acid (HTDA) method. In …