1-O-Alkyl (di)glycerol ethers synthesis from methyl esters and triglycerides by two pathways: catalytic reductive alkylation and transesterification/reductionElectronic supplementary information (ESI) available. See DOI: 10.1039/c3gc36907b
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 and selectivity by two different pathways. With methyl esters, a reductive alkylation with (di)glycerol was realized under...
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| creator | Sutter, Marc Dayoub, Wissam Métay, Estelle Raoul, Yann Lemaire, Marc |
| description | 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 and selectivity by two different pathways. With methyl esters, a reductive alkylation with (di)glycerol was realized under 50 bar hydrogen pressure in the presence of 1 mol% of Pd/C and an acid co-catalyst. A second two step procedure was evaluated from methyl esters or triolein and consisted of a first transesterification to the corresponding monoglyceride with a BaO/Al
2
O
3
catalyst, then its reduction to the desired glycerol monoether with a recyclable heterogeneous catalytic system Pd/C and Amberlyst 35 under H
2
pressure. In addition, a mechanism for the reaction was also proposed.
From vegetable oil to glycerol monoethers. |
| doi_str_mv | 10.1039/c3gc36907b |
| format | Article |
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O
-alkyl (di)glycerol ethers were obtained in both high yields and selectivity by two different pathways. With methyl esters, a reductive alkylation with (di)glycerol was realized under 50 bar hydrogen pressure in the presence of 1 mol% of Pd/C and an acid co-catalyst. A second two step procedure was evaluated from methyl esters or triolein and consisted of a first transesterification to the corresponding monoglyceride with a BaO/Al
2
O
3
catalyst, then its reduction to the desired glycerol monoether with a recyclable heterogeneous catalytic system Pd/C and Amberlyst 35 under H
2
pressure. In addition, a mechanism for the reaction was also proposed.
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O
-alkyl (di)glycerol ethers were obtained in both high yields and selectivity by two different pathways. With methyl esters, a reductive alkylation with (di)glycerol was realized under 50 bar hydrogen pressure in the presence of 1 mol% of Pd/C and an acid co-catalyst. A second two step procedure was evaluated from methyl esters or triolein and consisted of a first transesterification to the corresponding monoglyceride with a BaO/Al
2
O
3
catalyst, then its reduction to the desired glycerol monoether with a recyclable heterogeneous catalytic system Pd/C and Amberlyst 35 under H
2
pressure. In addition, a mechanism for the reaction was also proposed.
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O
-alkyl (di)glycerol ethers were obtained in both high yields and selectivity by two different pathways. With methyl esters, a reductive alkylation with (di)glycerol was realized under 50 bar hydrogen pressure in the presence of 1 mol% of Pd/C and an acid co-catalyst. A second two step procedure was evaluated from methyl esters or triolein and consisted of a first transesterification to the corresponding monoglyceride with a BaO/Al
2
O
3
catalyst, then its reduction to the desired glycerol monoether with a recyclable heterogeneous catalytic system Pd/C and Amberlyst 35 under H
2
pressure. In addition, a mechanism for the reaction was also proposed.
From vegetable oil to glycerol monoethers.</abstract><doi>10.1039/c3gc36907b</doi><tpages>12</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | 1-O-Alkyl (di)glycerol ethers synthesis from methyl esters and triglycerides by two pathways: catalytic reductive alkylation and transesterification/reductionElectronic supplementary information (ESI) available. See DOI: 10.1039/c3gc36907b |
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