AbstractAn efficient and simple method for the transamidation of carboxamides, phthalimide, ureas and thioamide with amines catalyzed by commercially available benzoic acid under metal‐free conditions is described. Furthermore, to the best of our knowledge, this is the first report about the transamidation of an aromatic thioamide with amines.magnified image
[EN] CHEMICAL PROCESSES AND COMPOUNDS DERIVED THEREFROM<br/>[FR] PROCÉDÉS CHIMIQUES ET COMPOSÉS DÉRIVÉS DE CEUX-CI
申请人:UNIV MONASH
公开号:WO2006012683A1
公开(公告)日:2006-02-09
The present invention relates to N-substituted anilines and derivatives thereof and in particular to chemical processes for the preparation of N-substituted anilines and derivatives thereof.
本发明涉及N-取代苯胺及其衍生物,特别是用于制备N-取代苯胺及其衍生物的化学过程。
A more critical role for silicon in the catalytic Staudinger amidation: silanes as non-innocent reductants
作者:Keith G. Andrews、Ross M. Denton
DOI:10.1039/c7cc03076b
日期:——
We demonstrate that in situ-generated silyl ester intermediates are key mediators of the catalytic, traceless Staudinger amidation reaction.
我们展示了原位生成的硅酯中间体是催化的、无痕迹的施陀林酰胺化反应的关键中介体。
Electrogenerated superoxide anion induced oxidative amidation of benzoin
Amide function is very important in both organic and medicinal chemistry. Benzamides can be obtained in good to high yields by reaction of benzoin, primary or secondary amines, molecular oxygen and electrogenerated superoxide anion (obtained with galvanostatic method). The advantage of using electrogenerated superoxide anion is related to its counterion, the tetraethylammonium cation, which is not
酰胺功能在有机化学和药物化学中都非常重要。苯甲酰胺可以通过安息香,伯胺或仲胺,分子氧和电生成的超氧阴离子(通过恒电流法获得)反应以高收率获得。使用电生成的超氧阴离子的优势与它的抗衡离子四乙基铵阳离子紧密相关,四乙基铵阳离子不与阴离子紧密结合,因此在没有添加剂的情况下也使超氧化物具有高反应性(使用KO 2时是必需的)。反应条件非常温和,仅需0.5 F / mol即可获得苯甲酰胺的良好收率。这项工作指出,也可以通过C C键断裂,从脱氧苯偶姻和苯甲腈开始获得苯甲酰胺,其产率取决于电荷量。 报告了一种机理假说(部分得到文献和伏安研究的支持),这可以解释副产物的形成并确定氧和超氧阴离子的作用。
Liquid sanitizing and cleaning compositions
申请人:STERLING DRUG INC.
公开号:EP0339121A1
公开(公告)日:1989-11-02
Liquid sanitizing and cleaning compositions with diminished skin irritancy comprise a nonionic surfactant and a di-(lower-alkyl)-long-chain-alkylbenzylammonium benzoate or a di-(lower-alkyl)-di-(long-chain-alkyl)-ammonium benzoate, the latter being produced either by ion exchange of the corresponding quaternary ammonium halide with benzoate or by mixing the quaternary ammonium halide with at least about one molar equivalent of an alkali metal benzoate, in water.