Abstract
An environmentally benign, mild approach for synthesis of C-3 alkylated indoles, bisindolylmethanes and flavanones using alcohols at room temperature under visible light has been developed. The reported reac-tion conditions were favorable for a wide range of alcohols afforded good to excellent yields of the respec-tive products. Additionally, the reaction system was successfully extended to the synthesis of flavanones from 2-hydroxyacetophenone. The low cost and air stable Knolker iron catalyst has been employed for the dehydrogenation of alcohols under photolysis that would usually require a higher temperature.CO 2023 Elsevier Ltd. All rights reserved.