Health & Environmental Research Online (HERO)


Print Feedback Export to File
1150759 
Journal Article 
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 
2005 
1 
Applied Catalysis A: General
ISSN: 0926-860X
EISSN: 1873-3875 
294 
2 
188-196 
WOS:000232873300009 
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. 
1-methoxy-2-propanol; FT-IR; CO2-TPD; MgO 
IRIS
• Methanol (Non-Cancer)
     Search 2012
          WOS