Oxidant-controlled divergent transformations of 3-aminoindazoles for the synthesis of pyrimido[1,2-<i>b</i>]-indazoles and aromatic nitrile-derived dithioacetals

Abstract

An oxidant-controlled divergent reactivity of 3-aminoindazoles is presented, which enables the [3 + 3] annulation and C–H arylation of ketene dithioacetals in disparate pathways to assemble pyrimido[1,2-<italic>b</italic>]-indazoles and aromatic nitrile-derived dithioacetals.