Photochemical α-bromination of ketones using N-bromosuccinimide: a simple, mild and efficient method
作者:Sudhir S. Arbuj、Suresh B. Waghmode、A.V. Ramaswamy
DOI:10.1016/j.tetlet.2006.12.101
日期:2007.2
Aromatic and aliphatic carbonyl compounds undergo facile bromination with N-bromosuccinimide under UV–vis irradiation to give the corresponding α-brominated ketones in good yields, at low temperatures (30 °C), without any catalyst, catalyst support or radical initiator and within a short time.
Oxidative bromination of ketones using ammonium bromide and oxone®
作者:Arun Kumar Macharla、Rohitha Chozhiyath Nappunni、Mahender Reddy Marri、Swamy Peraka、Narender Nama
DOI:10.1016/j.tetlet.2011.11.011
日期:2012.1
esters and α,α-dibromination of 1,3-diketones and β-keto esters without catalyst is reported using ammonium bromide as a bromine source and oxone® as an oxidant. The reaction proceeds at ambient temperature and yields range from moderate to excellent. Bromination of unsymmetrical ketones takes place at the less substituted α-position predominantly. Aromatisation of tetralones is also carried out with this
[EN] METALLOENZYME INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE MÉTALLO-ENZYMES
申请人:VIAMET PHARMACEUTICALS INC
公开号:WO2017117393A1
公开(公告)日:2017-07-06
The instant invention describes compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.
这项即时发明描述了具有金属酶调节活性的化合物,以及治疗由这些金属酶介导的疾病、疾病或症状的方法。
Halogenation of Carbonyl Compounds by an Ionic Liquid, [AcMIm]X, and Ceric Ammonium Nitrate (CAN)
作者:Brindaban C. Ranu、Laksmikanta Adak、Subhash Banerjee
DOI:10.1071/ch07061
日期:——
An ionic liquid, acetylmethylimidazolium halide ([AcMIm]X), in combination with ceric ammoniumnitrate promotes halogenations of a wide variety of ketones and 1,3-keto esters at the α-position. The ionic liquid acts here as reagent as well as reaction medium, and thus the reaction does not require any organic solvent or conventional halogenating agent. The reaction is completely arrested when the radical
离子液体乙酰甲基咪唑鎓卤化物 ([AcMIm]X) 与硝酸铈铵结合可促进多种酮和 1,3-酮酯在 α 位的卤化。离子液体在此既充当试剂又充当反应介质,因此该反应不需要任何有机溶剂或常规卤化剂。当使用自由基猝灭剂 TEMPO 时,反应完全停止。还提出了一种似是而非的激进机制。