The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide
Zhang, WY; Wang, H; Li, QB; Dong, QN; Zhao, N; Wei, W; Sun, YH
| HERO ID | 1150759 |
|---|---|
| In Press | No |
| Year | 2005 |
| Title | The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide |
| Authors | Zhang, WY; Wang, H; Li, QB; Dong, QN; Zhao, N; Wei, W; Sun, YH |
| Journal | Applied Catalysis A: General |
| Volume | 294 |
| Issue | 2 |
| Page Numbers | 188-196 |
| Abstract | The addition of propylene oxide with methanol was carried out over solid bases and a detailed mechanism of the reaction over MgO was investigated by using FT-IR method. It was found that 1-methoxy-2-propanol could be selectively synthesized on MgO, which had base sites of moderate strength, while CaO and Al2O3 showed either low activity or selectivity toward the production of 1-methoxy-2-propanol. In situ FT-IR revealed that methanol dissociation into methoxide and proton took place readily on MgO, and that propylene oxide adsorbed on MgO could generate propylene-like species via carbanion intermediates. As a result, methanol dissociated into adsorbed methoxide and reacted with the propylene-like specie in anti-Markownikov fashion, which led to the high selectivity to 1-methoxy-2-propanol on MgO. (c) 2005 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.apcata.2005.07.005 |
| Wosid | WOS:000232873300009 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000232873300009 |
| Is Public | Yes |
| Keyword | 1-methoxy-2-propanol; FT-IR; CO2-TPD; MgO |
| Is Qa | No |