Rh(III)-Catalyzed Enaminone-Directed C-H Coupling with α-Diazo-α-phosphonoacetate for Reactivity Discovery: Fluoride-Mediated Dephosphonation for C-C Coupling Reactions

Rh(III)-catalyzed enaminone-directed C-H coupling with alpha-diazo-alpha-phosphonoacetate has been used for the identification of fluoride-mediated dephosphonation C-C coupling reactivity for the synthesis of 4-hydroxy-1-naphthoates. Intermolecular C-C coupling of alpha-phosphonoacetate and benzaldehyde for (E)-selective alpha,beta-unsaturated ester synthesis has also been achieved.