Dual Ligand-Enabled Nondirected C–H Cyanation of Arenes
作者:Hao Chen、Arup Mondal、Philipp Wedi、Manuel van Gemmeren
DOI:10.1021/acscatal.8b04639
日期:2019.3.1
structural units in organic chemistry and, therefore, highly attractive targets for C–Hactivation. Herein, the development of an arene-limited, nondirectedC–H cyanation based on the use of two cooperatively acting commercially available ligands is reported. The reaction enables the cyanation of arenes by C–Hactivation in the absence of directing groups and is therefore complementary to established
Synthèse d'aryl- et hètèroarylsilanes par scission de l'hexaméthyldisilane
作者:P. Babin、B. Bennetau、M. Theurig、J. Dunoguès
DOI:10.1016/0022-328x(93)80045-d
日期:1993.3
4-dichlorotrifluoromethylbenzene. This process, which avoids the use of a stoichiometric amount of metal, is especially useful when the function attached to the aryl bromide is not compatible with common organometailic intermediates.
Generation and reaction of cyano-substituted aryllithium compounds using microreactors
作者:Aiichiro Nagaki、Heejin Kim、Hirotsugu Usutani、Chika Matsuo、Jun-ichi Yoshida
DOI:10.1039/b919325c
日期:——
microflow method for the generation and reactions of aryllithiums bearing a cyano group, including o-lithiobenzonitrile, m-lithiobenzonitrile and p-lithiobenzonitrile. The method was effective at much higher temperatures than are required for conventional macrobatch reactions, by virtue of rapid mixing, short residence time, and efficient temperature control. In addition, reactions of o-lithiobenzonitrile
Oxidative 1,2-Difunctionalization of Ethylene via Gold-Catalyzed Oxyarylation
作者:Matthew J. Harper、Edward J. Emmett、John F. Bower、Christopher A. Russell
DOI:10.1021/jacs.7b06668
日期:2017.9.13
Under the conditions of oxidative gold catalysis, exposure of ethylene to aryl silanes and alcohols generates products of 1,2-oxyarylation. This provides a rare example of a process that allows catalytic differential 1,2-difunctionalization of this feedstock chemical.
Goossen; Ferwanah, Synlett, 2000, # 12, p. 1801 - 1803