Fast Thermal Breaking and Formation of a B–N Bond in 2-(Aminomethyl)benzeneboronates

Abstract

The Title compounds 1 to 6 (Table 1) are shown by 1H, 11B, and 15N NMR shifts to fom an intramolecular B - N bond which, according to 1N and 13C NMR, is frequently broken (δ G math image = 40 to 54 kJ/mol, Table 2) and re-formed.