کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10244621 | 47696 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Increased enantioselectivity in the presence of benzylamine in the heterogeneous hydrogenation of α,β-unsaturated carboxylic acids
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Increased enantioselectivity in the presence of benzylamine in the heterogeneous hydrogenation of α,β-unsaturated carboxylic acids Increased enantioselectivity in the presence of benzylamine in the heterogeneous hydrogenation of α,β-unsaturated carboxylic acids](/preview/png/10244621.png)
چکیده انگلیسی
The use of one equivalent of benzylamine increased the enantioselectivity in the heterogeneous catalytic hydrogenation of α,β-unsaturated carboxylic acids over cinchonidine-modified 5% Pd/Al2O3 catalyst. The beneficial effect of the amine additive was dependent on substrate structure. The highest effect, a more than sixfold increase in the enantiomeric excess, was obtained in the hydrogenation of itaconic acid. This is the first report on the enantioselective hydrogenation of a prochiral α,β-unsaturated dicarboxylic acid over a supported heterogeneous metal catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 231, Issue 2, 25 April 2005, Pages 480-483
Journal: Journal of Catalysis - Volume 231, Issue 2, 25 April 2005, Pages 480-483
نویسندگان
György SzöllÅsi, Taka-aki Hanaoka, Shu-ichi Niwa, Fujio Mizukami, Mihály Bartók,