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Nickel-Catalyzed Asymmetric Kumada Cross-Coupling of Symmetric Cyclic Sulfates
被引:38
|作者:
Eno, Meredith S.
[1
]
Lu, Alexander
[1
]
Morken, James P.
[1
]
机构:
[1] Boston Coll, Merkert Chem Ctr, Dept Chem, Chestnut Hill, MA 02467 USA
关键词:
GRIGNARD-REAGENTS;
ALKYL-HALIDES;
ENANTIOSELECTIVE DESYMMETRIZATION;
BENZYLIC ETHERS;
ORGANIC HALIDES;
SECONDARY;
ELECTROPHILES;
TOSYLATES;
COMPLEXES;
LIGAND;
D O I:
10.1021/jacs.6b03384
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Nickel-catalyzed enantioselective cross-couplings between symmetric cyclic sulfates and aromatic Grignard reagents are described. These reactions are effective with a broad range of substituted cyclic sulfates and deliver products with asymmetric tertiary carbon centers. Mechanistic experiments point to a stereoinvertive S(N)2-like oxidative addition of a nickel complex to the electrophilic substrate.
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页码:7824 / 7827
页数:4
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