Solvent-free rapid ethenolysis of fatty esters from spent hen and other lipidic feedstock with high turnover numbers

The transformation of canola oil (CO), chicken fat (CF) and used cooking oil (UCO) esters is highlighted with the greener approach of microwave-assisted solvent-less ethenolysis. Four different catalysts were screened to carry out rapid reaction at low-temperature in short time span (50 °C and 30 min) and the study demonstrated significant improvements in turnover numbers (TONs) to 92,000 and 78,080 for CO esters and UCO esters respectively, indicating the possibility of convenient scale-up without the requirement for extensive purification of catalysts and starting substrates. A novel renewable lipidic source of spent hen for ethenolysis is exploited for the first time and maximum turnover numbers of 21,820 was achieved through optimization of catalyst/feedstock system.