On the Virtue of Indium in Reduction Reactions. A Comparison of Reductions Mediated by Indium and Zinc: Is Indium Metal an Effective Catalyst for Zinc Induced Reductions?
作者:Camilla Matassini、Marco Bonanni、Marco Marradi、Stefano Cicchi、Andrea Goti
DOI:10.1002/ejic.201901081
日期:2020.3.27
Indium(0)‐mediated reductions have been reported for the transformation of several functional groups (imines, oximes, nitro groups, isoxazolidines, and conjugated alkenes, among others), prompted by the opportunity of performing the reactions in aqueous media and green conditions. We describe here the comparison of several reactions using indium or the less expensive zinc, carried out in order to evaluate
据报道,由于在水性介质和绿色条件下进行反应的机会,铟(0)介导的还原作用可转化为多个官能团(亚胺,肟,硝基,异恶唑烷和共轭烯烃等)。我们在这里描述了使用铟或较便宜的锌进行的几种反应的比较,以评估铟金属带来的有效优势。我们发现必须强制使用In的某些反应,以及其他Zn效果相同甚至更好的反应。羟胺还原成相应的胺是唯一的还原方法,使用In可以提供比Zn更好的结果,并且在存在化学计量比的Zn的情况下也可以使用2-5 mol%In来应用有效的催化形式。