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Copper-catalysed approach to spirocyclic oxindoles via a direct C-H, Ar-H functionalisation

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JournalTetrahedron Letters
DatePublished - 11 Apr 2012
Issue number15
Volume53
Number of pages3
Pages (from-to)1897-1899
Original languageEnglish

Abstract

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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