کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10244829 | 47706 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Olefin cyclopropanation and insertion into OH bonds mediated by copper(I) and palladium(II) covalently anchored to silica xerogels
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Copper(I) and palladium(II) ligated to pyrazolylpyridine bearing a tethered (trimethoxysilyl)propyl group in position 4 of the pyrazole ring were chemically bonded to silica via a sol-gel process. The textural properties of the materials (specific surface area, porous volume, and pore size distribution) were characterized by nitrogen adsorption-desorption isotherms, mercury porosimetry, and TEM analysis. The hybrid materials were tested as catalysts in olefin cyclopropanation and as potential chemoselective catalysts in the reaction with unsaturated alcohols (double bond versus OH group), with ethyl diazoacetate as a carbene precursor, and compared with the corresponding homogeneous complexes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 232, Issue 1, 15 May 2005, Pages 51-59
Journal: Journal of Catalysis - Volume 232, Issue 1, 15 May 2005, Pages 51-59
نویسندگان
Luigi Sacco, Stéphanie Lambert, Jean-Paul Pirard, Alfred F. Noels,