Rapid and efficient synthesis of 2-substituted-tetrahydropyrido[3,4-b]quinoxalines using TDAE strategy

We report herein an original and rapid synthesis of substituted 2-tosyl-1,2,3,4-tetrahydropyrido[3,4-b]quinoxaline derivatives by TDAE strategy from 2,3-bis(bromomethyl)quinoxaline and N-(toluenesulfonyl)benzylimines.