کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
62337 | 47635 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of immobilized organic base catalysts for continuous-flow fine chemical synthesis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
A continuous-flow two-step process for the production of multifunctional intermediate compounds was performed with a combination of two column reactors packed with different organic immobilized catalysts. The first step of the reaction, nitroaldol condensation between aromatic aldehydes and nitromethane, is promoted by a silica gel-supported primary amine; the second step, Michael addition of β-dicarbonyl compounds to the nitrostyrenes obtained in the first step, is catalyzed by a silica gel-supported guanidine TBD. In both cases, the catalysts can be directly reused for several runs with no significant changes in activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 258, Issue 2, 10 September 2008, Pages 289–295
Journal: Journal of Catalysis - Volume 258, Issue 2, 10 September 2008, Pages 289–295
نویسندگان
L. Soldi, W. Ferstl, S. Loebbecke, R. Maggi, C. Malmassari, G. Sartori, S. Yada,