Rh(III)-Catalyzed Enaminone-Directed Alkenyl C–H Activation for the Synthesis of Salicylaldehydes
2018
A Rh(III)-catalyzed enaminone-directed alkenyl C–H coupling with alkynes for the synthesis of salicylaldehyde derivatives is reported. This represents a unique example of benzene ring framework formation through a transition-metal-catalyzed, directed C–H activation strategy. The two incorporated reactive functionalities, aldehyde and hydroxy groups, provide convenient synthetic handles for further structural elaboration.
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