The direct anti-Markovnikov addition of mineral acids to styrenes
作者:Dale J. Wilger、Jean-Marc M. Grandjean、Taylor R. Lammert、David A. Nicewicz
DOI:10.1038/nchem.2000
日期:2014.8
hydrogen atom donor. The nucleophile counterion plays a critical role by ensuring high reactivity, with 2,6-lutidinium salts typically furnishing the best results. The nature of the redox-activehydrogen atom donor is also consequential, with 4-methoxythiophenol providing the best reactivity when 2,6-lutidinium salts are used. A novel acridinium sensitizer provides enhanced reactivity within several of
Correction to “Nickel-Catalyzed Asymmetric Reductive Cross-Coupling To Access 1,1-Diarylalkanes”
作者:Kelsey E. Poremba、Nathaniel T. Kadunce、Naoyuki Suzuki、Alan H. Cherney、Sarah E. Reisman
DOI:10.1021/jacs.8b05247
日期:2018.6.20
Pages 5684 and 5685, Table of
第 5684 页和第 5685 页,表
Nickel-Catalyzed Reductive Cross-Coupling of Benzyl Halides with Aryl Halides
作者:Qun Qian、Hegui Gong、Qingchen Zhang、Xuan Wang
DOI:10.1055/s-0035-1562442
日期:——
Abstract Systematic studies of the coupling of benzylic with aryl halides are presented. The optimized reaction conditions for electron-deficient aryl halides cannot be applied to the electron-rich or neutral counterparts, and vice versa. The excellent functional group tolerance and broad substrate scope may enable the current work to be useful for the construction of diaryl methane products. Systematic
The reactions of primary and secondary benzylic chlorides with trifluoromethyltrimethylsilane in the presence of a catalytic amount of copper(i) thiophene-2-carboxylate (CuTC) have been found to give the corresponding benzylic trifluoromethylated products in good to high yields.
Nickel-Catalyzed Asymmetric Reductive Cross-Coupling To Access 1,1-Diarylalkanes
作者:Kelsey E. Poremba、Nathaniel T. Kadunce、Naoyuki Suzuki、Alan H. Cherney、Sarah E. Reisman
DOI:10.1021/jacs.7b01705
日期:2017.4.26
reductive cross-coupling of (hetero)aryl iodides and benzylic chlorides has been developed to prepare enantioenriched 1,1-diarylalkanes. As part of these studies, a new chiral bioxazoline ligand, 4-heptyl-BiOX (L1), was developed in order to obtain products in synthetically useful yield and enantioselectivity. The reaction tolerates a variety of heterocyclic coupling partners, including pyridines, pyrimidines
已经开发了(杂)芳基碘化物和苄基氯化物的不对称 Ni 催化还原交叉偶联,以制备对映体富集的 1,1-二芳基烷烃。作为这些研究的一部分,开发了一种新的手性生物恶唑啉配体 4-庚基-BiOX (L1),以便以合成有用的产率和对映选择性获得产品。该反应耐受多种杂环偶联物,包括吡啶、嘧啶、吲哚和哌啶。