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
The synthesis of 2,4-disubstituted-1-naphthols has been developed employing photomediated C–C bond cleavage (UV-LED 390 nm) of cyclopropane fused-indanones generated in situ from the reaction between indenones and trimethylsulfoxonium chloride under basic conditions at room temperature. Seventeen substrates were examined in this study. The results showed that indenone precursors containing aryl substituents
Ozonolysis of 1-methylindenes. Solvent, temperature, and substituent electronic effects on the ozonide exo/endo ratio
作者:Masahiro Miura、Tomohiro Fujisaka、Masatomo Nojima、Shigekazu Kusabayashi、Kevin J. McCullough
DOI:10.1021/jo00209a028
日期:1985.5
Reactivity of phenyliodonium bis(arylsulphonyl)methylides towards alkenes and alkynes: crystal structure of 9-phenylsulphonyl-1,2,3,4,4a,9a-hexahydro-1,4- methanofluorene
作者:Lazaros Hatjiarapoglou、Anastassios Varvoglis、Nathaniel W. Alcock、Graham A. Pike
DOI:10.1039/p19880002839
日期:——
Thermal or photochemical reactions of phenyliodonium bis(arylsulphonyl)methylides with alkenes lead normally to gem-(arylsulphonyl)cyclopropanes. Norbornene and trans-stilbene, however, afford 1-(phenylsulphonyl)indane derivatives. The crystal structure of the title compound R= 0.038 for 3 468 unique observed reflections [I/σ(I) 3.0]} confirmed the identity of the product with norbornene. Diarylacetylenes