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N-Heterocyclic carbene-catalyzed (NHC) three-component domino reactions: highly stereoselective synthesis of functionalized acyclic ε-ketoesters
被引:18
|作者:
Ma, Jianze
Huang, You
[1
]
Chen, Ruyu
机构:
[1] Nankai Univ, State Key Lab, Tianjin 300071, Peoples R China
基金:
中国国家自然科学基金;
关键词:
GAMMA-BUTYROLACTONES;
ALPHA;
BETA-UNSATURATED ALDEHYDES;
ENANTIOSELECTIVE SYNTHESIS;
THIOPHOSPHINYL IMINES;
NUCLEOPHILIC CARBENES;
4+2 CYCLOADDITION;
ENALS;
HOMOENOLATE;
CHEMISTRY;
KETENES;
D O I:
10.1039/c0ob00725k
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A novel NHC-catalyzed three-component domino strategy to access high functionalized cis-epsilon-ketoesters with excellent yields (up to 98%) and high stereoselectivities (up to 20 : 1) is documented. The title domino reactions are atom economical and work on a broad range of substrates. The relative stereochemistry could be explained by a cascade crossed-benzoin/oxy-Cope rearrangement/esterification process. The thus-obtained products are of potential synthetic value in the drug research and combinatorial chemistry.
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页码:1791 / 1798
页数:8
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