کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
68571 | 48517 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silica supported perchloric acid (HClO4-SiO2): A highly efficient and reusable catalyst for geminal diacylation of aldehydes under solvent-free conditions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
Perchloric acid immobilized on silica gel has been found to be an efficient and expedient catalyst for geminal diacylation of aldehydes. A wide variety of aromatic and aliphatic aldehydes can be easily transformed into the corresponding acylals using 0.5 mol% HClO4-SiO2 within 2–10 min under solvent-free conditions at room temperature. The notable advantages of this protocol are: the reaction requires less reaction time and only stoichiometric amount of acetic anhydride being used, is highly economic and the catalyst is recyclable.
Silica supported perchloric acid (HClO4-SiO2): A highly efficient and reusable catalyst for geminal diacylation of aldehydes under solvent-free conditions. Figure optionsDownload as PowerPoint slide
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 255, Issues 1–2, 1 August 2006, Pages 230–235
Journal: Journal of Molecular Catalysis A: Chemical - Volume 255, Issues 1–2, 1 August 2006, Pages 230–235
نویسندگان
Abu T. Khan, Lokman H. Choudhury, Subrata Ghosh,