Rhenium‐Catalyzed Arylation–Acyl Cyclization between Enol Lactones and Organomagnesium Halides: Facile Synthesis of Indenones
作者:Binjing Hu、Xinyi Cheng、Ying Hu、Xingchen Liu、Konstantin Karaghiosoff、Jie Li
DOI:10.1002/anie.202103465
日期:2021.7.5
A set of rhenium-catalyzed arylation–acyl cyclizations between (hetero)arylmagnesium halides and enol lactones through a cascade C(sp2)−C(sp2)/C(sp2)−C(sp2) bondformation under mild reaction conditions has been developed. Indeed, a wide range of functional groups on both organomagnesium halides and enol lactones is well tolerated by the simple rhenium catalysis, thus furnishing polyfunctionalized
FeCl<sub>3</sub> mediated synthesis of substituted indenones by a formal [2+2] cycloaddition/ring opening cascade of o-keto-cinnamates
作者:Dattatraya H. Dethe、Ganesh M. Murhade
DOI:10.1039/c5cc03040d
日期:——
A novel FeCl3 mediated formal [2+2] cycloaddition/ring opening cascade of o-keto-cinnamates was developed for the synthesis of indenones. The reaction tolerates a broad range of functional groups, including bromide, chloride, amide, acid and ester groups.
Facile Synthesis of Alkyl 1-Oxo-3-phenyl-1<i>H</i>-indene-2-carboxylate through Palladium-catalyzed Carboalkoxylation from 2-Bromo-3-phenylinden-1-ones
Palladium-catalyzed carboalkoxylation of 2-bromo-3-phenylindenones in various alcoholic solvents afforded diverse alkyl 1-oxo-3-phenyl-1H-indene-2-carboxylates in high yields.