17755-10-1Relevant articles and documents
A Facile Synthesis of the Unsymmetrically Methyl-Substituted 2-Hydroxybiphenyls by Regioselective Cleavage of Dibenzofuran Derivatives with Lithium Metal
Keumi, Takashi,Murata, Chozo,Sasaki, Yasuto,Kitajima, Hidehiko
, p. 634 - 635 (1980)
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Palladium-Catalyzed Reductive [5+1] Cycloaddition of 3-Acetoxy-1,4-enynes with CO: Access to Phenols Enabled by Hydrosilanes
Li, Jin-Heng,Luo, Shenglian,Song, Ren-Jie,Wu, Li-Jun
supporting information, p. 13308 - 13312 (2018/09/21)
A new palladium-catalyzed reductive [5+1] cycloaddition of 3-acetoxy-1,4-enynes with CO, enabled by hydrosilanes, has been developed for delivering valuable functionalized phenols. This methodology employs hydrosilanes as the external reagent to facilitate the [5+1] carbonylative benzannulation. The reaction is a conceptually and mechanistically novel carbonylative cycloaddition route for the construction of substituted phenols, through the formation of four new chemical bonds, with excellent functional-group tolerance.
Stoichiometric to catalytic reactivity of the aryl cycloaurated species with arylboronic acids: Insight into the mechanism of gold-catalyzed oxidative C(sp2)-H arylation
Wu, Qian,Du, Chenglong,Huang, Yumin,Liu, Xingyan,Long, Zhen,Song, Feijie,You, Jingsong
, p. 288 - 293 (2015/02/19)
Based on the well-defined five-membered aryl gold(iii) complexes, [Au(tpy)X2] (3a and 3b) and [AuBr(Ph)(tpy)] (7), as well as the aryl gold(iii) complex [AuCl2(Ph)(tpy)] (8) (tpy = 2-(o-tolyl)pyridine) as reliable models, we present a detailed study of the mechanism for gold(iii)-catalyzed oxidative cross-coupling reactions between cycloaurable arenes and arylboronic acids. Here we report the direct evidence for a mechanistic proposal including arene C-H activation, transmetallation and biaryl reductive elimination. The chelation-assisted C-H activation strategy has been used for the development of the gold(iii)-catalyzed C-H bond arylation of arenes with aryl reagents to forge extended π-conjugated systems. This journal is