Heterogeneous Baeyer–Villiger oxidation of ketones with H2O2/nitrile, using Mg/Al hydrotalcite as catalyst
作者:Rafael Llamas、César Jiménez-Sanchidrián、José Rafael Ruiz
DOI:10.1016/j.tet.2006.11.081
日期:2007.2
scale. We optimized the cyclohexanone/hydrogen peroxide/benzonitrile proportion and used various nitriles, solvents and amounts of catalyst, benzonitrile and methanol proving the most effective nitrile and solvent, respectively, for the intended purpose. The reaction was found to occur to an acceptable extent with other carbonyl compounds as substrates; by exception, α,β-unsaturated carbonyl compounds
我们合成了镁铝水滑石,并将其用作环己酮在Baeyer-Villiger(BV)氧化中的催化剂,并用30%的过氧化氢水溶液和苄腈作为氧化剂。水滑石被证明是该工艺的极佳催化剂。为了使工作条件尽可能接近工业规模可用的条件,对实验变量的影响进行了深入研究。我们优化了环己酮/过氧化氢/苄腈的比例,并使用了各种腈,溶剂和一定量的催化剂,苄腈和甲醇,分别证明了最有效的腈和溶剂达到了预期目的。发现该反应在以其他羰基化合物为底物的情况下发生在可接受的范围内。作为例外,α,