Oxidative cleavage of the CN bond during singlet oxygenations of amidoximates
作者:Nüket Öcal、Ihsan Erden
DOI:10.1016/s0040-4039(01)00887-5
日期:2001.7
Amidoximes are inert toward singletoxygen (1O2), however, the photooxygenation of amidoximate anions proceeds smoothly and in high yield to give mixtures of amides and nitriles. The mechanism of these reactions appears to involve carbonyl oxide intermediates. The oxidative cleavage of amidoximates closely resembles the results obtained from nitric oxide synthase (NOS) oxidations of N-hydroxyarginine
酰胺基肟对单线态氧(1 O 2)呈惰性,但是,酰胺基肟酸根阴离子的光氧化作用平稳且高收率,可生成酰胺和腈的混合物。这些反应的机理似乎与羰基氧化物中间体有关。mid胺肟酸的氧化裂解与N-羟基精氨酸的一氧化氮合酶(NOS)氧化获得的结果非常相似。
STABILIZATION OF HYDROXYLAMINE CONTAINING SOLUTIONS AND METHOD FOR THEIR PREPARATION
申请人:Lee Wai Mun
公开号:US20090112024A1
公开(公告)日:2009-04-30
The invention relates to the use of amidoximes for prevention of or stabilization of hydroxylamine compounds against undesired decomposition.
Transition-metal-catalyzed, directed intermolecular C–Hbond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a
作者:Swapnil S. Deshmukh、Sameerana N. Huddar、Dinesh S. Bhalerao、and Krishnacharya G. Akamanchi
DOI:10.3998/ark.5550190.0011.209
日期:——
Biologically important process of oxidation of amidoximes has been investigated using IBX (o- iodoxybenzoic acid) and combination of IBX with TEAB (tetraethylammonium bromide). The reaction proceeds with high % conversion leading to selective formation of amide and nitrile depending upon the combination of reagents.
general, facile, and efficient method is presented for the synthesis of 3-substituted 1,2,4-oxadiazoles fromamidoximes and triethyl orthoformate. The procedure employs an iron(III) chloride/l-proline catalytic system and the 3-substituted 1,2,4-oxadiazole products are obtained in moderate to good yields. A general, facile, and efficient method is presented for the synthesis of 3-substituted 1,2,4-oxadiazoles