Highly efficient palladium-catalyzed cross-coupling of diarylborinic acids with arenediazoniums for practical diaryl synthesis
作者:Fengze Wang、Chen Wang、Guoping Sun、Gang Zou
DOI:10.1016/j.tetlet.2019.151491
日期:2020.2
A highly efficient cross-coupling of cost-effective diarylborinic acids with both isolatable and latent arenediazoniums, i.e. tetrafluoroborates and aryltriazenes, respectively, has been developed with a practical palladium catalyst system under base-free conditions in open flask at room temperature. A variety of electronically and sterically various biaryls, in particular, those bearing a coordinative
Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylic alcohols
作者:Hang Yu、Zhong-Xia Wang
DOI:10.1039/d1ob01874d
日期:——
Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylicalcohols proceeds readily under mild conditions in the presence of zinc powder and MgCl2 to produce allylarenes in 25–92% yields. The reaction shows high regioselectivity and E/Z-selectivity, giving linear allylation products with an E configurated double bond when 1- or 3-arylallyl alcohols were used as the substrates. Functional groups including
convenient cross-coupling of functionalized organomanganese reagents with a variety of aryl and heteroarylhalides leading to polyfunctionalized diaryl- and arylheteroarylmethane derivatives. A catalytic system consisting of Ni(acac)2 (5 mol%) and 4-fluorostyrene (20 mol%) allows a convenient cross-coupling of functionalized organomanganese reagents with a variety of aryl and heteroarylhalides leading
Rhodium-Catalyzed Arylation Using Arylboron Compounds: Efficient Coupling with Aryl Halides and Unexpected Multiple Arylation of Benzonitrile
作者:Kenji Ueura、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/ol050590b
日期:2005.5.1
[reaction: see text]. The Suzuki-Miyaura-type cross-coupling of arylboroncompounds with aryl halides proceeds efficiently in the presence of a rhodium-based catalyst system to produce the corresponding biaryls. Furthermore, it has unexpectedly been observed that the treatment with benzonitrile under similar conditions brings about its multiple arylation, in which nucleophilic arylation on the cyano