Blue light induced [2,3]-sigmatropic rearrangement reactions of tosylhydrazones

Metal-free blue light-mediated [2,3]-sigmatropic rearrangement reactions of tosylhydrazones and sulfides are reported herein. This strategy shows great enhancement compared to the traditional methods because of stable starting materials and mild reaction conditions. In this report, we have developed the Doyle-Kirmse reaction and Sommelet-Hauser reaction with simple operation, high yields and broad substrate adaptability. Metal-free blue light-mediated [2,3]-sigmatropic rearrangement reactions of tosylhydrazones and sulfides are reported herein. This strategy shows great enhancement compared to the traditional methods because of stable starting materials and mild reaction conditions. In this report, we have developed the Doyle-Kirmse reaction and Sommelet-Hauser reaction with simple operation, high yields and broad substrate adaptability.