Visible-light-induced aerobic C-3 thiocyanation of indoles using carbon dots as photoredox catalyst

Abstract

In this work, we demonstrate the use of rose-bengal derived carbon dots for C-3 thiocyanation of indoles. These carbon dots serve as an non-toxic, biocompatible and environmentally friendly catalysts for the C-3 thiocyanation reaction. To our best knowledge, this is the first report to use rose-bengal derived carbon dots for C-3 thiocyanation of indoles. The yield of the synthesized derivatives of indoles were found to be good to excellent in the range of 33 percent to 84 percent.