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Volumn 15, Issue 39, 2009, Pages 9990-9994

Unprecedented halide dependence on catalytic asymmetric hydrogenation of 2-aryl- and 2-alkyl-substituted quinolinium salts by using ir complexes with difluorphos and halide ligands

Author keywords

Asymmetric synthesis; Enantioselectivity; Hydrogenation; Iridium; Quinolines

Indexed keywords

ASYMMETRIC HYDROGENATION; ASYMMETRIC SYNTHESIS; CATALYST PRECURSORS; CATALYST SYSTEM; CRUDE PRODUCTS; DINUCLEAR IRIDIUMS; DIPHOSPHINE LIGAND; ENANTIOSELECTIVE HYDROGENATION; ENVIRONMENTALLY BENIGN PROCESS; HALIDE COMPLEXES; HALIDE LIGAND; IR COMPLEXES; IRIDIUM CATALYST; NMR SPECTROSCOPIC ANALYSIS; QUINOLINES; TRANSITION-METAL COMPLEX;

EID: 70349653339     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200901477     Document Type: Article
Times cited : (114)

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    • 2 (5 mL) was stirred for 3 h at RT. Upon addition of HX (10 equiv; X = Cl, Br, or I), the color of the solution immediately turned yellow. After stirring for an additional 30 min, all volatiles were removed under reduced pressure. The residue was washed three times with hexane to remove excess diphosphine ligand and cyclooctene. The obtained air-stable pale yellow complex was used for the hydrogenation without further purification.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.