کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52589 | 46877 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
(1R,2R)-(−)-2-Dimethylamino-1-(4-nitrophenyl)-1,3- propanediol/l-proline cocatalyzed enantioselective Morita–Baylis–Hillman reaction
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
(1R,2R)-(−)-2-Dimethylamino-1-(4-nitrophenyl)-1,3-propanediol (2) was prepared starting from the readily available precursor of antibiotics chloramphenicol. The combination of compound 2 and l-proline have been found to be an efficient cocatalyst for the asymmetric Morita–Baylis–Hillman (MBH) reaction between methyl vinyl ketone (MVK) and aromatic aldehydes. The corresponding adducts were formed in reasonable chemical yields with good enantioselectivities (up to 82% ee). Performance of parallel cocatalytic reactions with chiral amine 2 and the two enantiomers of proline revealed that it is the proline stereochemistry that determines the configuration of the newly formed chiral center.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 11, November 2007, Pages 1811–1814
Journal: Catalysis Communications - Volume 8, Issue 11, November 2007, Pages 1811–1814
نویسندگان
Hongying Tang, Peng Gao, Guofeng Zhao, Zhenghong Zhou, Liangnian He, Chuchi Tang,