Indium() triflate-catalysed [4 + 2] benzannulation reactions of -alkynylbenzaldehydes with enolisable carbonyl compounds: selective synthesis of naphthyl ketones

Indium( iii ) triflate is found to be an effective catalyst for the benzannulation reactions of o -alkynylbenzaldehydes with enolisable aldehydes, ketones, 1,3-diketones and β-keto esters. The reactions produce naphthyl ketones through ring opening of adducts arising from the inverse electron demand...

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Veröffentlicht in:	Organic & biomolecular chemistry 2013-12, Vol.12 (2), p.269-277
Hauptverfasser:	Sakthivel, Karuppusamy, Srinivasan, Kannupal
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