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HIGHLY ACTIVE RHODIUM CATALYST WITH ELECTRON-POOR DIPHOSPHINE ENABLES EFFICIENT SYNTHESIS OF CHIRAL 4-ARYL-δ-LACTONES
被引:19
|作者:
Korenaga, Toshinobu
[1
]
Maenishi, Ryota
[1
]
Osaki, Kazutaka
[1
]
Sakai, Takashi
[1
]
机构:
[1] Okayama Univ, Grad Sch Nat Sci & Technol, Div Chem & Biochem, 3-1-1 Tsushima Naka, Okayama 7008530, Japan
关键词:
Chiral Lactone;
Rhodium Catalyst;
Electron-Poor Ligand;
Asymmetric 1,4-Addition;
Boronic Acid;
ASYMMETRIC 1,4-ADDITION;
ARYLBORONIC ACIDS;
ORGANOBORONIC ACIDS;
CONJUGATE ADDITION;
BORONIC ACIDS;
LIGANDS;
ARYL;
D O I:
10.3987/COM-09-S(S)40
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Chiral 4-aryl-delta-lactones could be synthesized efficiently with high enantioselectivity through asymmetric 1,4-addition of arylboronic acid to alpha,beta-unsaturated lactones using Rh catalyst including electron-poor diphosphine (MeO-F-12-BIPHEP) at room temperature for 1 h. In particular, our catalytic system proved to be applicable to relatively large coumarin analogues, giving optically pure 4-phenylchroman-2-one analogues in a short time.
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页码:157 / 162
页数:6
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