Synthesis of benzo[c]chromen-6-ones via novel cyclic aryl-Pd(II)-ester enolate intermediates

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Journal Article
Tetrahedron, 2007, 63 (45), pp. 10889 - 10895
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The examination of the palladium catalysed arylation reactions of mono-iodo derivatives of the phenyl and benzyl esters of benzoic acid, phenylacetic acid and dehydrocinnamic acid has resulted in the formation of benzo[c]chromen-6-ones, unexpected cinnamate and succinate products and diphenyl dimers. Many of these products can be rationalised as arising from novel cyclic ArPd(II)enolate intermediates, formed by intramolecular CH activation by ArPd(II).
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