Competition Between Azido Cleavage and Triplet Nitrene Formation in Azidomethylacetophenones
作者:Ranaweera A. A. Upul Ranaweera、Yu Zhao、Sivaramakrishnan Muthukrishnan、Christopher Keller、Anna D. Gudmundsdottir
DOI:10.1071/ch10331
日期:——
N2 and form triplet nitrenes is less than 1 kcal mol–1 above TA in 1a, 1b. Laser flash photolysis of 1a, 1b reveals the formation of the triplet excited ketones of 1a, 1b, which decay to form benzyl radicals 1aB, 1bB and triplet alkylnitrenes. The triplet ketones and the benzyl radicals are quenched with molecular oxygen at rates close to diffusion, whereas the triplet nitrenes react more slowly with