[EN] AZEPINE-TYPE FUSED RING COMPOUND AND PHARMACEUTICAL USE THEREOF [FR] COMPOSÉ À CYCLE FUSIONNÉ DU TYPE AZÉPINE ET SON UTILISATION PHARMACEUTIQUE [ZH] 氮杂卓类稠环化合物及其医药用途
[EN] AZEPINE-TYPE FUSED RING COMPOUND AND PHARMACEUTICAL USE THEREOF [FR] COMPOSÉ À CYCLE FUSIONNÉ DU TYPE AZÉPINE ET SON UTILISATION PHARMACEUTIQUE [ZH] 氮杂卓类稠环化合物及其医药用途
Catalyst- and Reagent-Free Electrochemical Azole C−H Amination
作者:Youai Qiu、Julia Struwe、Tjark H. Meyer、João C. A. Oliveira、Lutz Ackermann
DOI:10.1002/chem.201802832
日期:2018.9.3
Catalyst‐ and chemical oxidant‐free electrochemical azole C−H aminations were accomplished via cross‐dehydrogenative C−H/N−H functionalization. The catalyst‐free electrochemical C−H amination proved feasible on azoles with high levels of efficacy and selectivity, avoiding the use of stoichiometric oxidants under ambient conditions. Likewise, the C(sp3)−H nitrogenation proved viable under otherwise
Transition metal-free direct amination of benzoxazoles using formamides as nitrogen sources
作者:Rui Wang、Hong Liu、Liang Yue、Xiao-ke Zhang、Qiu-yuan Tan、Ruo-lin Pan
DOI:10.1016/j.tetlet.2014.02.070
日期:2014.4
A transition metal-free method for the directamination of benzoxazoles using formamides as nitrogen sources is reported, which was mediated by an inexpensive and environmentally friendly tetrabutylammonium iodide/tert-butyl hydroperoxide system and gave the 2-aminobenzoxazole derivatives with moderate to good yields.
Cobalt- and Manganese-Catalyzed Direct Amination of Azoles under Mild Reaction Conditions and the Mechanistic Details
作者:Ji Young Kim、Seung Hwan Cho、Jomy Joseph、Sukbok Chang
DOI:10.1002/anie.201005922
日期:2010.12.17
azoles has been developed using peroxide and an acid additive to couple various types of azoles with ammonia, and primary or secondary amines (see scheme). The catalyst loadings are low, the optimal reaction conditions are mild, and the substrate scope is broad. The product azoles are an important pharmacophore of high biological activity.