Pd-Catalyzed cross-coupling synthesis of 4-aryl-3-formylcoumarins
Organic & Biomolecular Chemistry2022Vol. 20(5), pp. 1053–1057
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Abstract
The threefold cross-coupling of triarylbismuth reagents with 4-chloro-3-formylcoumarins furnished the corresponding 4-aryl-3-formylcoumarins in a chemoselective manner with high yields under Pd-catalyzed conditions. This method was successfully applied to electronically different triarylbismuth reagents and 4-chloro-3-formylcoumarins preserving the 3-formyl group in the coumarin scaffold.
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