Catalyst-Free Synthesis of 2-Anilinoquinolines and 3-Hydroxyquinolines via Three-Component Reaction of Quinoline <i>N</i>-Oxides, Aryldiazonium Salts, and Acetonitrile
microwave-assisted, catalyst-free, three-component synthesis of various 2-anilinoquinolines from quinoline N-oxides and aryldiazonium salts in acetonitrile under microwave irradiation is reported. This reaction utilizes acetonitrile as a single nitrogen source and involves the formation of two new C–N bonds via the formal [3 + 2] cycloadditionreaction. In the case of 2-substituted quinolines, 3-hydroxyquinoline
Manganese-Catalyzed [4 + 2] Annulation of N–H Amidines with Vinylene Carbonate via C–H Activation
作者:Yudong Li、Huan Wang、Ying Li、Yang Li、Yuxia Sun、Chungu Xia、Yuehui Li
DOI:10.1021/acs.joc.1c02473
日期:2021.12.17
Manganese-catalyzed C–H bond functionalization of aryl amidines for the synthesis of 1-aminoisoquinolines in the presence of vinylenecarbonate has been developed. The reaction features a broad substrate scope and proceeds under mild reaction conditions with only the carbonate anion as the byproduct.
A mild and metal-free synthesis of 2- and 1-alkyl/aryl/dialkyl-aminoquinolines and isoquinolines
作者:Yerramsetti Nanaji、Seema Kirar、Sandip V. Pawar、Ashok Kumar Yadav
DOI:10.1039/c9ra10397j
日期:——
A simple synthetic strategy has been developed for the synthesis of 2- and 1-alkyl/aryl/dialkylaminoquinolines and isoquinolines from the easily available quinoline and isoquinoline-N-oxides, different amines, triflic anhydride as activating agent and acetonitrile as solvent in a one-pot reaction under metal-free conditions at 0 °C to room temperature.