An Electrochemical Route for Special Oxidative Ring-Opening of Indoles
Hong Qin1, Zhao Yang2, Zhen Zhang1
1College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China.
Abstract:
A novel electrochemical protocol for the oxidative cleavage of indoles has been developed, which offers a simple way to access synthetically useful anthranilic acid derivatives. In undivided cells, a wide variety of indoles and alcohol compounds are examined to afford amide ester aromatics without using extra oxidants and stoichiometric metal catalysts, which avoids the formation of undesired by-products and exhibits high atom economy. The products we described in this perspective represent a synthetic intermediate in numerous drug molecules and industrial chemical reagents and remarkably show potential application in the future.
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