کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
56713 | 47092 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A non-phosgene route for synthesis of methylene diphenyl dicarbamate from methylene dianiline and methyl carbamate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper proposes a non-phosgene route for the synthesis of methylene diphenyl dicarbamate (MDC) by the methoxycarbonylation of methylene dianiline (MDA) with methyl carbamate (MC). Effects of catalysts, reaction temperature, reaction time, catalyst content and the molar ratio of reactants were investigated in the presence of methanol. The results showed that methanol-pretreated PbO catalyst exhibited high catalytic activity for this reaction. Under the condition of 433 K for 3 h, near-complete conversion of MDA and 83.1% selectivity of MDC were obtained. A possible reaction mechanism for the methoxycarbonylation reaction was proposed based on product distribution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 148, Issues 3–4, 30 November 2009, Pages 373–377
Journal: Catalysis Today - Volume 148, Issues 3–4, 30 November 2009, Pages 373–377
نویسندگان
Yixia Pei, Huiquan Li, Haitao Liu, Yi Zhang,