کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5279491 | 1385626 | 2009 | 4 صفحه PDF | دانلود رایگان |

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 RhIIICpâ. 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 RhIIICpâ. The resulting complexes act as catalysts in the asymmetric transfer hydrogenation (ATH) of acetophenone.
Journal: Tetrahedron Letters - Volume 50, Issue 19, 13 May 2009, Pages 2228-2231