1-O-Alkyl (di)glycerol ethers synthesis from methyl esters and triglycerides by two pathways: catalytic reductive alkylation and transesterification/reduction
作者： Marc Sutter , Wissam Dayoub , Estelle Métay , Yann Raoul , Marc Lemaire
DOI: 10.1039/C3GC36907B
关键词:
摘要: From available and bio-sourced methyl esters, monoglycerides or oleic sunflower refined oil, the corresponding 1-O-alkyl (di)glycerol ethers were obtained in both high yields selectivity by two different pathways. With a reductive alkylation with was realized under 50 bar hydrogen pressure presence of 1 mol% Pd/C an acid co-catalyst. A second step procedure evaluated from esters triolein consisted first transesterification to monoglyceride BaO/Al2O3 catalyst, then its reduction desired glycerol monoether recyclable heterogeneous catalytic system Amberlyst 35 H2 pressure. In addition, mechanism for reaction also proposed.
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