کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5279491 1385626 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New heterogenized C2-symmetric bis(sulfonamide)-cyclohexane-1,2-diamine-RhIIICp∗ complexes and their application in the asymmetric transfer hydrogenation (ATH) of ketones in water
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
New heterogenized C2-symmetric bis(sulfonamide)-cyclohexane-1,2-diamine-RhIIICp∗ complexes and their application in the asymmetric transfer hydrogenation (ATH) of ketones in water
چکیده انگلیسی

C2-symmetric bis(sulfonamide) ligands derived from chiral trans-(1R,2R)-cyclohexane-1,2-diamine were immobilized on silica gel and on polystyrene resin, and complexed to RhIIICp∗. The resulting complexes were used as catalysts in the asymmetric transfer hydrogenation (ATH) of acetophenone. The chiral secondary alcohol was obtained in high yields (>99%) and enantioselectivities (92%) with aqueous sodium formate as the hydride source. The immobilized catalysts were recycled with no loss in activity.

C2-symmetric bis(sulfonamide) ligands derived from chiral trans-(1R,2R)-cyclohexane-1,2-diamine were immobilized on silica gel and complexed to RhIIICp∗. The resulting complexes act as catalysts in the asymmetric transfer hydrogenation (ATH) of acetophenone.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 50, Issue 19, 13 May 2009, Pages 2228-2231
نویسندگان
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