Dual Mechanisms for the Fragmentation of 1-Benzoylbenzotriazole upon Electron Impact

Article abstract of DOI:10.1002/oms.1210150103

The electron impact induced fragmentation of 1-benzoylbenzotriazole has been studied by 13C labelling experiments.It has been found that the loss of CO from the 2>^+. ions proceeds by two routes; about 78percent of the ions decompose via the molecular ions of the corresponding thermal fragmentation product, 2-phenylbenzoxazole, and 22percent via those of the corresponding photochemical fragmentation product, 6-phenanthridone.