An effective and mild method for the conversion of oximes to secondary nitro compounds
作者:E.J. Corey、Herbert Estreicher
DOI:10.1016/s0040-4039(01)83928-9
日期:——
A mild and efficient process for the conversion of cyclic ketones to saturated nitro compounds, as outlined below, is described.
如下所述,描述了一种温和而有效的将环酮转化为饱和硝基化合物的方法。
Chlorination of Oximes with Aqueous H<sub>2</sub>O<sub>2</sub>/HCl System: Facile Synthesis of <i>gem</i>-Chloronitroso- and <i>gem</i>-Chloronitroalkanes, <i>gem</i>-Chloronitroso- and <i>gem</i>-Chloronitrocycloalkanes
Chlorination of cyclic and linear ketone oximes with aqueous H2O2/HCl in a two-phase dichloromethane-water system selectively affords gem-chloronitroso compounds in yields of up to 94%. One-pot oxidation of the resulting gem-chloronitroso compounds with peracetic acid, prepared in situ, gives gem-chloronitroalkanes and cycloalkanes in yields of up to 82%. The advantages of the method are that it is facile and environmentally benign and does not require gaseous chlorine.
New reagent for a one-step synthesis of gem-chloronitro compounds from oximes
作者:M. A. Zolfigol、A. Khazaei、E. Kolvari、N. Koukabi、M. Gilandoust
DOI:10.1007/bf03246563
日期:2011.12
The use of chlorine bleach (5% NaOCl) for the halogenation-oxidation of oximes to gem-chloronitro compounds is reported. Chlorine bleach afforded satisfactory yields when employed alone either at room temperature or under ultrasonic irradiation.