Hypervalent Iodine Oxidative Rearrangement of Anthranilamides, Salicylamides and Some β-Substituted Amides: A New and Convenient Synthesis of 2-Benzimidazolones, 2-Benzoxazolones and Related Compounds
作者:Om Prakash、Hitesh Batra、Harpreet Kaur、Pawan K. Sharma、Vijay Sharma、Shiv P. Singh、Robert M. Moriarty
DOI:10.1055/s-2001-12346
日期:——
Oxidation of anthranilamides, salicylamides and some b-substituted amides with iodobenzene diacetate in methanolic potassium hydroxide led to a new and convenientsynthesis of 2-benzimidazolones, 2-benzoxazolones and relatedcompounds, respectively. The reaction probably occurs via initial Hofmann-type rearrangement followed by intramolecular cyclization of intermediate isocyanate.