Co-N-Si/AC Catalyst for Aerobic Oxidation of Benzyl Alcohols to Esters under Mild Conditions

Abstract

A stable, earth-abundant, reusable cobalt-based heterogeneous catalyst is developed for the oxidative esterification of alcohols under ambient conditions, featuring broad substrate scope, providing good to excellent product yields. This protocol enables easy recyclability of the catalyst, measured up to five times without significant loss of efficiency. The active sites of Co-N-Si/AC are proposed to be Co-N species.

Enzymatic synthesis of pyridine heterocyclic compounds and their thermal stability

“…Based on recent literature, the approaches utilized for synthesizing pyridine esters primarily encompass metal catalysis [ 6 , 7 ], photocatalysis [ 8 ], electrocatalysis [ 9 ], base catalysis [ 10 ] and Lewis acid catalysis [ 11 ]. Currently, several approaches to synthesizing pyridine esters face challenges such as high temperature, low yield, residual catalyst, and heavy metal contamination.…”