A Chiral Rhodium Complex for Rapid Asymmetric Transfer Hydrogenation of Imines with High Enantioselectivity

1999 ◽  
Vol 1 (6) ◽  
pp. 841-843 ◽  
Author(s):  
Jianmin Mao ◽  
David C. Baker
Keyword(s):  
Transfer Hydrogenation ◽  
Rhodium Complex ◽  
Asymmetric Transfer Hydrogenation

Rhodium-catalyzed asymmetric transfer hydrogenation of 4-quinolone derivatives

2020 ◽  
Vol 7 (8) ◽  
pp. 975-979 ◽  
Author(s):  
Bin He ◽  
Phannarath Phansavath ◽  
Virginie Ratovelomanana-Vidal
Keyword(s):  
Formic Acid ◽  
Transfer Hydrogenation ◽  
Rhodium Complex ◽  
Asymmetric Transfer Hydrogenation ◽  
Quinolone Derivatives

4-Quinolone derivatives were conveniently reduced to 1,2,3,4-tetrahydroquinoline-4-ols with excellent enantioselectivities through asymmetric transfer hydrogenation using a tethered rhodium complex and formic acid/triethylamine as the hydride source.

Asymmetric transfer hydrogenation catalysed by hydrophobic dendritic DACH–rhodium complex in water

2006 ◽  
Vol 4 (17) ◽  
pp. 3319-3324 ◽  
Author(s):  
Lin Jiang ◽  
Tong-Fei Wu ◽  
Ying-Chun Chen ◽  
Jin Zhu ◽  
Jin-Gen Deng
Keyword(s):  
Transfer Hydrogenation ◽  
Rhodium Complex ◽  
Asymmetric Transfer Hydrogenation

Rhodium complex with unsymmetrical vicinal diamine ligand: excellent catalyst for asymmetric transfer hydrogenation of ketones

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51722-51729 ◽  
Author(s):  
Sudhindra H. Deshpande ◽  
Vaishali S. Shende ◽  
Savita K. Shingote ◽  
Debamitra Chakravarty ◽  
Vedavati G. Puranik ◽  
...  
Keyword(s):  
Starting Material ◽  
Systematic Variation ◽  
Transfer Hydrogenation ◽  
Rhodium Complex ◽  
Asymmetric Transfer Hydrogenation ◽  
Diamine Ligands

New unsymmetrical vicinal diamine ligands with systematic variation in the regio and stereo positions in the amine and sulphonamide groups were synthesized from cheap starting material such as norephedrine.

scholarly journals Design of Iridium N-Heterocyclic Carbene Amino Acid Catalysts for Asymmetric Transfer Hydrogenation of Aryl Ketones

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 671
Author(s):  
Chad M. Bernier ◽  
Joseph S. Merola
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Enantiomeric Excess ◽  
Transfer Hydrogenation ◽  
Acid Catalysts ◽  
Asymmetric Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Chiral Complexes ◽  
Acetophenone Derivatives ◽  
Aryl Ketones

A series of chiral complexes of the form Ir(NHC)2(aa)(H)(X) (NHC = N-heterocyclic carbene, aa = chelated amino acid, X = halide) was synthesized by oxidative addition of -amino acids to iridium(I) bis-NHC compounds and screened for asymmetric transfer hydrogenation of ketones. Following optimization of the reaction conditions, NHC, and amino acid ligands, high enantioselectivity was achieved when employing the Ir(IMe)2(l-Pro)(H)(I) catalyst (IMe = 1,3-dimethylimidazol-2-ylidene), which asymmetrically reduces a range of acetophenone derivatives in up to 95% enantiomeric excess.

Enantioselectivity in the Noyori–Ikariya Asymmetric Transfer Hydrogenation of Ketones

2021 ◽  
Author(s):  
Pavel A. Dub ◽  
Nikolay V. Tkachenko ◽  
Vijyesh K. Vyas ◽  
Martin Wills ◽  
Justin S. Smith ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation

Dendritic catalysts for asymmetric transfer hydrogenation based (1S,2R)-norephedrine derived ligands

2003 ◽  
Vol 14 (16) ◽  
pp. 2481-2485 ◽  
Author(s):  
Pei Nian Liu ◽  
Ying Chun Chen ◽  
Xue Qiang Li ◽  
Yong Qiang Tu ◽  
Jin Gen Deng
Keyword(s):  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation
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