Mo–Catalyzed One‐Pot Synthesis of
<i>N</i>
‐Polyheterocycles from Nitroarenes and Glycols with Recycling of the Waste Reduction Byproduct. Substituent‐Tuned Photophysical Properties
作者:Raquel Hernández‐Ruiz、Rubén Rubio‐Presa、Samuel Suárez‐Pantiga、María R. Pedrosa、Manuel A. Fernández‐Rodríguez、M. José Tapia、Roberto Sanz
DOI:10.1002/chem.202102000
日期:2021.9.24
reduction–imine formation–intramolecular cyclization–oxidation for the general synthesis of a wide variety of biologically relevant N-polyheterocycles, such as quinoxaline- and quinoline-fused derivatives, and phenanthridines, is reported. A simple, easily available, and environmentally friendly dioxomolybdenum(VI) complex has proven to be a highly efficient and versatile catalyst for transforming a
Palladium-Catalyzed Decarboxylative CH Bond Arylation of Thiophenes
作者:Peng Hu、Min Zhang、Xiaoming Jie、Weiping Su
DOI:10.1002/anie.201106451
日期:2012.1.2
combination with a stoichiometric amount of Ag2CO3 has been established for the decarboxylativeCHbondarylation of thiophenes to give 2‐arylthiophenes (see scheme; Cy=cyclohexyl). Electron‐rich, electron‐deficient, and heterocyclic benzoic acids can be used as the arylating reagent and a broad range of substituents on the thiophene are tolerated.
已经建立了一种有效的方法,该方法涉及将Pd / PCy 3催化剂与化学计量的Ag 2 CO 3结合使用,以使噻吩进行脱羧化的C de H键芳基化反应,生成2-芳基噻吩(参见方案; Cy =环己基)。富电子,缺电子和杂环苯甲酸可以用作芳基化试剂,噻吩上的各种取代基是可以耐受的。
Construction of Spirocyclic Pyrrolo[1,2-<i>a</i>]quinoxalines via Palladium-Catalyzed Hydrogenative Coupling of Phenols and Nitroarenes
The replacement of fossil resources with biomass resources in the construction of N-heterocycles is rapidly attracting research interest. Herein, we report palladium-catalyzed selective hydrogenative coupling of nitroarenes and phenols based on a transfer hydrogenation strategy, allowing straightforward access to spirocyclic pyrrolo- and indolo-fused quinoxalines, a class of compounds found in numerous
2-(Anilinomethyl)imidazolines as α1A Adrenergic Receptor Agonists: 2′-Heteroaryl and 2′-Oxime Ether Series
作者:Frank Navas、Michael J. Bishop、Deanna T. Garrison、Stephen J. Hodson、Jason D. Speake、Eric C. Bigham、David H. Drewry、David L. Saussy、James H. Liacos、Paul E. Irving、M.Jeffrey Gobel
DOI:10.1016/s0960-894x(01)00822-8
日期:2002.2
A series of 2'-heteroaryl and 2'-oxime anilinomethylimidazolines was prepared and evaluated in in vitro functional assays for cloned human alpha(1A), alpha(1B), and alpha(1D) receptor subtypes, Potent and selective alpha(1A) agonists have been identified in these series. (C) 2002 Elsevier Science Lid. All rights reserved.
BARTON, J. W.;LAPHAM, D.;ROWE, D. J., J. CHEM. SOC. PERKIN TRANS., 1985, N 1, 131-133