Efficient palladium-catalyzed C(sp<sup>2</sup>)–H activation towards the synthesis of fluorenes
作者:Juan Song、Yali Li、Wei Sun、Chenglong Yi、Hao Wu、Haotian Wang、Keran Ding、Kang Xiao、Chao Liu
DOI:10.1039/c6nj02033j
日期:——
protocol for the synthesis of fluorene derivatives has been developed through palladium-catalyzed cyclization of 2′-halo-diarylmethanes via activation of arylic C–H bonds. The reactions occurred smoothly and allowed both electron-rich and electron-deficient substrates to convert into their corresponding fluorenes in good to excellent yields. Studies revealed that this Pd-catalyzedcyclization was also available
Highly efficient synthesis of 9-fluorenones from 9H-fluorenes by air oxidation
作者:Xin Zhang、Xuan Ji、Shanshan Jiang、Lili Liu、Brandon L. Weeks、Zhao Zhang
DOI:10.1039/c1gc15136c
日期:——
9-Fluorenones substituted with nitro, halogen, or alkyl groups can be easily obtained in high yield and purity by aerobic oxidation of 9H-fluorenes under ambient conditions in the presence of KOH in THF.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
[EN] CURABLE RESIN MIXTURE, CURABLE RESIN COMPOSITION, AND CURED PRODUCT<br/>[FR] MÉLANGE DE RÉSINE DURCISSABLE, COMPOSITION DE RÉSINE DURCISSABLE ET PRODUIT DURCI<br/>[JA] 硬化性樹脂混合物、硬化性樹脂組成物及びその硬化物