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Copper-catalysed approach to spirocyclic oxindoles via a direct C-H, Ar-H functionalisation
被引:49
|作者:
Moody, Catherine L.
[1
]
Franckevicius, Vilius
[1
]
Drouhin, Pauline
[1
]
Klein, Johannes E. M. N.
[1
]
Taylor, Richard J. K.
[1
]
机构:
[1] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England
关键词:
Copper catalysis;
Spirocyclic oxindoles;
Radical cyclisation;
C-H activation;
Natural product synthesis;
ANION CAPTURE PROCESSES;
ENANTIOSELECTIVE SYNTHESIS;
SUBSTITUTED OXINDOLES;
ALPHA-ARYLATION;
PALLADIUM;
SPIROOXINDOLES;
GELSEMINE;
CENTERS;
AMIDES;
DERIVATIVES;
D O I:
10.1016/j.tetlet.2012.01.120
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A practical and efficient entry to spirocyclic oxindoles from readily accessible anilide precursors, using only catalytic amounts of an inexpensive copper salt together with air as the sole re-oxidant, is described. In addition to providing access to a broad range of spiro-oxindole products, the utility of this method is demonstrated in a formal synthesis of the natural product, horsfiline. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:1897 / 1899
页数:3
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