Regioselective reduction of substituted dinitroarenes using baker's yeast
作者:Claire L. Davey、Lawson W. Powell、Nicholas J. Turner、Andrew Wells
DOI:10.1016/0040-4039(94)80139-8
日期:1994.10
A range of substituted dinitroaromatic compounds have been reduced usingbaker'syeast (Saccharamyces cerevisiae), in some cases with very high selectivity. A model is presented to account for the origin of the selectivity together with a possible mechanism for the reduction.
Double 1,3-dipolar cycloaddition of N-methyl Azomethine ylide to meta-Dinitrobenzene annelated with nitrogen aromatic heterocycles
作者:Maxim A. Bastrakov、Alexey M. Starosotnikov、Sergey Yu. Pechenkin、Vadim V. Kachala、Ivan V. Glukhov、Svyatoslav A. Shevelev
DOI:10.1002/jhet.423
日期:——
The 1,3-dipolar cycloaddition of unstabilized azomethine ylide 1 with meta-dinitrobenzene fused with nitrogen heterocycles affords the corresponding decahydropyrrolo[3,4-e]isoindole cycloadducts in good yields. This is a first example of [3+2]-cycloaddition of azomethine ylides to nitroarenes. J. Heterocyclic Chem., (2010).
未稳定的甲亚胺基内酯1与间二硝基苯与氮杂环稠合的1,3-偶极环加成反应可提供相应的十氢吡咯并[3,4- e ]异吲哚环加合物,收率很高。这是将甲亚胺烷基化物[3 + 2]-环加成成硝基芳烃的第一个例子。J.杂环化学。(2010)。
Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
申请人:Lim Mu'Ill
公开号:US20060156485A1
公开(公告)日:2006-07-20
Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one bicyclic 6-6 (0:1, 0:2, 1:1, 1:2) aza heteroaromatic keratin dyeing compound with one or two N-oxides. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.