Synthesis of Indene Frameworks via Rhodium-Catalyzed Cascade Cyclization of Aromatic Ketone and Unsaturated Carbonyl Compounds
作者:Xian-Ying Shi、Chao-Jun Li
DOI:10.1021/ol400198q
日期:2013.4.5
A novel rhodium(III)-catalyzed direct functionalization of the ortho-C–H bond of aromatic ketone derivatives and an intramolecular cyclization sequence produced indene derivatives in moderate to good yields. This cascade cyclization involves a conjugate addition of α,β-unsaturated ketone and subsequent aldol condensation. The reaction occurred efficiently in the presence of water and under an atmosphere
Cp*Co(III)-Catalyzed Ketone-Directed <i>ortho</i>-C–H Activation for the Synthesis of Indene Derivatives
作者:Dattatraya H. Dethe、Nagabhushana C B、Arsheed Ahmad Bhat
DOI:10.1021/acs.joc.0c00727
日期:2020.6.5
carbonyl-assisted C–H activation of aromatic systems with α,β-unsaturated ketone and subsequent aldol condensation has been developed using a Cp*Co(CO)I2 catalyst. The developed method is the first example of indenesynthesis by cobalt-catalyzed C–H activation. In addition, the reaction requires mild reaction conditions and easily accessible starting materials, and it shows excellent functional group compatibility