Photocatalyst‐free Light‐driven Dehydrogenation of Alcohols into Carbonyl Compounds under Mild Conditions

Abstract

Herein, we reported a photocatalyst‐free, facile and eco‐friendly method for conducting dehydrogenation of alcohols to corresponding aldehydes or ketones with high selectivity under mild conditions. The methodology exhibited outstanding tolerance with electron‐donating and electron‐withdrawing groups and afforded series of aldehydes or ketones in considerable yields. Furthermore, the plausible mechanism was investigated by control experiments and DFT calculations. The advantages of readily accessible, atomic economy and green reaction conditions for the present method will endow it with prospective application in chemical synthesis.

Visible-Light Photocatalytic Aerobic C═C Bond Cleavage of Alkenes to Carbonyls by CsPbBr3 Nanocrystals

“…Inspired by these seminal works and based on our previous works on the green synthesis of oxygen-containing organic compounds, herein CsPbBr 3 was synthesized via an antisolvent crystallization method and used as a heterogeneous visible-light photocatalyst to induce the cleavage of CC bonds in alkenes in the presence of an O 2 atmosphere without using any additives (Scheme c). Apart from providing an efficient, facile, and economic alternative protocol to prepare carbonyl compounds via the cleavage of the CC bond, this work also provides a paradigm for the application of CsPbBr 3 nanocrystals in catalyzing organic transformations, an area that is far from fully developed.…”