Transforming Methyl Levulinate into Biosurfactants and Biolubricants by Chemoselective Reductive Etherification with Fatty Alcohols
作者:Andrea Garcia‐Ortiz、Karen S. Arias、Maria J. Climent、Avelino Corma、Sara Iborra
DOI:10.1002/cssc.201903496
日期:2020.2.21
properties were obtained by conversion of methyl levulinate into methyl 4-alkoxypentanoates through reductive etherification with aliphatic alcohols. Among different bifunctional acid/metal catalysts best results were obtained with Pd on carbon bearing acid sites. The reaction occurred through the formation of an enol ether intermediate followed by hydrogenation. Pd in high-density planes was the active hydrogenation
通过将乙酰丙酸甲酯通过脂族醇的还原醚化反应,将乙酰丙酸甲酯转化为4-烷氧基戊酸甲酯,可以得到具有非常好的表面张力和临界胶束浓度特性的生物质表面活性剂。在不同的双功能酸/金属催化剂中,钯在含碳酸位上获得了最佳结果。该反应通过形成烯醇醚中间体然后氢化而发生。高密度平面中的Pd是活性氢化物质,发现最佳晶体尺寸约为10 nm。用脂肪醇进行的还原性醚化作用扩展到了从生物质中获得的其他脂肪族和环状酮和醛,