- Substrate scope in the copper-mediated construction of bis-oxindoles via a double C-H/Ar-H coupling process
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Abstract The synthesis of bis-oxindoles via the copper(II)-mediated double cyclisation of linear bis-anilides is described. Cu(OAc)2·H2O was identified as an efficient and inexpensive catalyst for this process. In contrast to previous methods, which rely on the synthesis of the central core from existing oxindole building blocks, this new approach focusses on concurrent formation of both oxindole rings from a simple linear precursor, allowing the formation of bis-oxindoles containing a diverse range of cyclic and acyclic linkers using a single synthetic method.
- Drouhin, Pauline,Hurst, Timothy E.,Whitwood, Adrian C.,Taylor, Richard J.K.
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supporting information
p. 7124 - 7136
(2015/03/30)
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- NOVEL COMPOUNDS AND METHODS OF USING THEM
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The present invention relates to novel compounds and their pharmaceutically acceptable salts, prodrugs, solvates, polymorphs, tautomers and isomers. In some embodiments, the compounds described herein may be used to modulate sirtuins (SIRT). The present i
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Page/Page column 135
(2009/05/28)
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- Process for carboxylating organic substrates with carbon dioxide in hydrocarbon solvents
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Carboxylable substrates i.e., ketones, esters, nitroparaffins and nitriles, containing activated hydrogen atoms are carboxylated by reaction with alkaline phenates and CO2 in at least one hydrocarbon solvent selected from aliphatic, alicyclic, aromatic and alkyl-aromatic hydrocarbon solvents.
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