Abstract
In spite of the significant progress made in transformations of unstrained benzylic (tert-)alcohols through β-aryl elimination, catalytic carbonylation has not yet been developed extensively because alkoxycarbonylation is probably favored over β-aryl elimination. In this letter, we report on the rhodium(I)-catalyzed carbonylative annulation of α,α-dimethyl-(2-bromoaryl)methanols with internal alkynes using furfural leading to the formation of indenones. The key to the success of the reaction is the timely generation of the carbonyl source via the decarbonylation of furfural.
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