Cyclization of 2-azidobenzophenones to 3-phenylanthranils. Examples of an intramolecular 1, 3-dipolar addition

JH Hall, FE Behr, RL Reed

文献索引：Hall,J.H. et al. Journal of the American Chemical Society, 1972 , vol. 94, p. 4952 - 4958

全文：HTML全文

被引用次数: 42

摘要

Abstract: The rate of decomposition of 4'-substituted-2-azidobenzophenones to give 4'- substituted-3-phenyl-anthranils has been studied in decalin over a 45'temperature range. The reaction was found to be accelerated by electron-withdrawing groups and retarded by electron-donating groups. The enthalpy of activation was found to be considerably less than reported for phenyl azide decompositions. The entropy of activation was moderately large ...