for the synthesis of diarylmethine‐containing compounds. However, the methods developed to date for this purpose require a stoichiometric amount (usually more) of either a strong base or an oxidant. Reported here is the first catalytic benzylic C−H bond addition of diarylmethanes to styrenes and conjugated dienes. A potassium zincate complex, generated from potassium benzyl and zinc amide, acts as
Access to Polycyclic Derivatives by Triflate-Catalyzed Intramolecular Hydroarylation
作者:Bastien Cacciuttolo、Sophie Poulain-Martini、Fabien Fontaine-Vive、Mahmoud Ali Hussein Abdo、Hussein El-Kashef、Elisabet Duñach
DOI:10.1002/ejoc.201402972
日期:2014.11
An efficient and versatile synthesis of indane, tetralin and benzosuberan derivatives has been developed; the synthesis starts from nonactivated aromatic compounds bearing unsaturated side chains and is a bismuth(III) or indium(III) trifluoromethanesulfonate-catalysed atom-economic process. A variety of polycyclic compounds have been isolated in high yields. Lactonisation could be observed for esters