کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1255032 | 971402 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Novel chiral C2-symmetric multidentate aminophosphine ligands for use in catalytic asymmetric reduction of ketones Novel chiral C2-symmetric multidentate aminophosphine ligands for use in catalytic asymmetric reduction of ketones](/preview/png/1255032.png)
A series of novel chiral C2-symmetric multidentate aminophosphine ligands have been successfully synthesized by Schiff-base condensation of bis(o-formylphenyl)phenylphosphane and easily available monoprotected (1R,2R)-diaminocyclohexane. The catalytic properties of these ligands were investigated in Ir-catalyzed asymmetric transfer hydrogenation of various aromatic ketones, giving the corresponding optical active alcohols with up to 98% conversion and good ee under mild reaction conditions.
A series of novel chiral C2-symmetric multidentate aminophosphine ligands have been successfully synthesized by Schiff-base condensation of bis(o-formylphenyl)phenylphosphane and easily available monoprotected (1R,2R)-diaminocyclohexane. The catalytic properties of these ligands were investigated in Ir-catalyzed asymmetric transfer hydrogenation of various aromatic ketones, giving the corresponding optical active alcohols with up to 98% conversion and good ee under mild reaction conditions.Figure optionsDownload as PowerPoint slide
Journal: Chinese Chemical Letters - Volume 24, Issue 6, June 2013, Pages 527–530