کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9614944 | 48549 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
PAMAM dendrimer-palladium complex catalyzed synthesis of five-, six- or seven membered ring lactones and lactams by cyclocarbonylation methodology
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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![عکس صفحه اول مقاله: PAMAM dendrimer-palladium complex catalyzed synthesis of five-, six- or seven membered ring lactones and lactams by cyclocarbonylation methodology PAMAM dendrimer-palladium complex catalyzed synthesis of five-, six- or seven membered ring lactones and lactams by cyclocarbonylation methodology](/preview/png/9614944.png)
چکیده انگلیسی
Palladium complexes immobilized onto generations 0-3 PAMAM dendrimers supported on silica, in the presence of 1,4-bis(diphenylphosphino)butane, were used as catalysts for the cyclocarbonylation of 2-allylphenols, 2-allylaniline, 2-vinylphenol and 2-vinylaniline affording five-, six- or seven membered ring lactones and lactams. Good conversions were realized using the catalytic system, and the catalyst was recycled 3-5 times. The influence of the spacer chain was investigated, as well as the solvent and the CO/H2 ratio, on the selectivity and the recyclability of the cyclocarbonylation reactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 227, Issues 1â2, 1 March 2005, Pages 197-207
Journal: Journal of Molecular Catalysis A: Chemical - Volume 227, Issues 1â2, 1 March 2005, Pages 197-207
نویسندگان
Rachid Touzani, Howard Alper,