Highly efficient rhodium(iii) catalysis was developed for obtaining structurally divergent pyrazolone analogues from pyrazolones and non-activated free allyl alcohols.
Diazo compounds play an important role as a coupling partner in the synthesis of unique π-conjugated 7-azaindole derivatives via rhodium(iii)-catalyzed double C-H activation/cyclization.
An efficient cobalt-catalyzed C-H amidation of 7-azaindoles was developed by using dioxazolones as the amidating reagent. A wide scope of substituted 7-azaindoles, even N-vinly groups, is suitable for the reaction, generating 7-azaindoles derivatives with potential properties up to 91% yield under straightforward and strong applicable reaction conditions.
A highly efficient rhodium(III)‐catalyzed synthesis of novel functionalized indene derivatives has been achieved via C−H activation/intramolecular aldol condensation. This cascade reaction is an atom economical protocol which could be further applied to build more complex compounds.magnified image
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