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Asymmetric Hydrogenation of Allylic Alcohols Using Ir-N,P-Complexes
被引:35
|作者:
Li, Jia-Qi
[1
]
Liu, Jianguo
[2
]
Krajangsri, Suppachai
[2
]
Chumnanvej, Napasawan
[2
]
Singh, Thishana
[2
]
Andersson, Pher G.
[2
]
机构:
[1] China Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
[2] Stockholm Univ, Dept Organ Chem, S-10691 Stockholm, Sweden
来源:
基金:
中国国家自然科学基金;
关键词:
asymmetric synthesis;
gamma;
gamma-disubstituted allylic alcohols;
beta;
DFT;
iridium;
hydrogenation;
IRIDIUM-CATALYZED HYDROGENATION;
ENANTIOSELECTIVE HYDROGENATION;
CONJUGATE ADDITION;
STEREOSELECTIVE-SYNTHESIS;
TRISUBSTITUTED OLEFINS;
SUBSTITUTED OLEFINS;
EFFICIENT LIGANDS;
ARYLBORONIC ACIDS;
HYDRIDE COMPLEXES;
GRIGNARD-REAGENTS;
D O I:
10.1021/acscatal.6b02456
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this study, a series of gamma,gamma-disubstituted and beta,gamma-disubstituted allylic alcohols were prepared and successfully hydrogenated using suitable N,P-based Ir complexes. High yields and excellent enantioselectivities were obtained for most of the substrates studied. This investigation also revealed the effect of the acidity of the N,P-Ir-complexes on the acid sensitive allylic alcohols. DFT Delta pK(a) calculations were used to explain the effect of the N,P-ligand on the acidity of the corresponding Ir-complex. The selectivity model of the reaction was used to accurately predict the absolute configuration of the hydrogenated alcohols.
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页码:8342 / 8349
页数:8
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