Application of Benzofurazan Oxide to the Synthesis of Heteroaromatic N-Oxides

Abstract

Benzofurazan oxide (BFO) reacts with enamines, enolate anions, phenolate anions, and related species to give a variety of heteroaromatic N-oxides, hitherto difficult to prepare.CONTENTS A. Introduction B. The Reagent-Benzofurazan oxide C. Reaction of BFO's with enamines D. Variants of the reaction E. Mechanism F. Some chemical transformations G. Spectroscopic properties H. Conclusion I system through the nitrogen atom, can serve both as an electron