Metal-Free Amidation Reactions of Terminal Alkynes with Benzenesulfonamide
作者:Sachinta Mahato、Sougata Santra、Grigory V. Zyryanov、Adinath Majee
DOI:10.1021/acs.joc.8b03065
日期:2019.3.15
synthesize α-sulfonylamino ketones through the reaction between terminal alkynes and sulfonamides under ambient air using PIDA (diacetoxy iodobenzene). A library of α-sulfonylamino ketone derivatives having a variety of substituents has been synthesized. A plausible reaction pathway has been predicted. This reaction offers a broad substrate scope, metal-free synthesis, excellent regioselectivity, easily
The CAN and NBS combination has been used for the first time for the synthesis of versatile alpha-hydroxy ketones and alpha-amino ketones from oxiranes/aziridines, respectively, in excellent yields. This method is a direct, one-pot, synthesis under mild conditions using acetonitrile-water (9:1) as solvent. (c) 2005 Elsevier Ltd. All rights reserved.
A mild and efficient synthesis of α-tosylamino ketones from aryl aziridines in the presence of β-cyclodextrin and NBS in water
作者:M. Somi Reddy、M. Narender、K. Rama Rao
DOI:10.1016/j.tetlet.2004.12.125
日期:2005.2
NBS has been utilized for the first time for the oxidative cleavage of aryl aziridines involving β-cyclodextrin–aziridine complexes in water to give the corresponding α-amino ketones in high yields.