Rhodium(III)-Catalyzed Regioselective Decarboxylative Cyclization for the Synthesis of 4H-Furo[3,2-c]chromen-4-one Derivatives
2017
This contribution describes a regioselective cyclization of hypervalent iodine reagents (HIR) with propiolic acids in the presence of a rhodium catalyst. The mild decarboxylation can tolerate a wide range of groups and generates 4H-furo[3,2-c]chromen-4-one derivatives in good isolated yields.
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