کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10238976 | 46012 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide The mechanism for the synthesis of 1-methoxy-2-propanol from methanol and propylene oxide over magnesium oxide](/preview/png/10238976.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 294, Issue 2, 10 October 2005, Pages 188-196
Journal: Applied Catalysis A: General - Volume 294, Issue 2, 10 October 2005, Pages 188-196
نویسندگان
Wenyu Zhang, Hui Wang, Qibiao Li, Qingnian Dong, Ning Zhao, Wei Wei, Yuhan Sun,