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Palladium-Catalyzed β-Arylation of Silyl Ketene Acetals and Application to the Synthesis of Benzo-Fused δ-Lactones
被引:27
|作者:
Aspin, Sam
[1
]
Lopez-Suarez, Laura
[1
]
Larini, Paolo
[1
]
Goutierre, Anne-Sophie
[1
]
Jazzar, Rodolphe
[1
]
Baudoin, Olivier
[1
]
机构:
[1] Univ Lyon 1, Inst Chim & Biochim Mol & Supramol, CNRS UMR 5246, CPE Lyon, F-69622 Villeurbanne, France
关键词:
C-H BONDS;
ALPHA-ARYLATION;
COUPLING REACTIONS;
KETO-ESTERS;
METAL;
FUNCTIONALIZATION;
EFFICIENT;
SP(2);
ACIDS;
D O I:
10.1021/ol402398s
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Silyl ketene acetals are shown to be competent nucleophiles in Pd-catalyzed migrative C(sp(3))-H arylations. Compared to the parent ester lithium enolates, they possess decreased reactivity but enhanced chemoselectivity. This behavior was exploited through the synthesis of valuable benzo-fused delta-lactones such as 1-isochromanones and dihydrocoumarins.
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页码:5056 / 5059
页数:4
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