A Simple Approach for the Synthesis of 7,8-Diaza[5]helicene

Abstract

An oxidative route for the formation of 7,8-diaza[5]helicene and the corresponding N-oxides in high yields was developed. A mechanism of formation and possible interconversion of these products is put forward. Reduction of the N-oxides provided the title compound in quantitative yield.

Key words

diaza[5]helicenes - oxidation - amines - N-oxides - heterocycles

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