A Fast and Highly Efficient Protocol for Reductive Amination of Aromatic Aldehydes Using NaBH4 and Isoxazole Amines in an Ionic Liquid Medium
作者:Rajanarendar Eligeti、Siva Rami Reddy Atthunuri、Raju Samala、Firoz Pasha Shaik、Govardhan Reddy Kundur
DOI:10.1002/cjoc.201190155
日期:2011.4
Reductive amination of aromatic aldehydes using NaBH4 and isoxazole amines is carried out in a Brønsted acidic ionic liquid 1‐methylimidazolium tetrafluoroborate [(HMIm)BF4]. The ionic liquid plays dual roles of solvent as well as catalyst for the efficient transformation of aromatic aldehydes to heterocyclic substituted amines in excellent yields without any undesired side product formation. The newly
使用NaBH 4和异恶唑胺对芳香族醛进行还原胺化反应是在布朗斯台德酸性离子液体1-甲基咪唑四氟硼酸盐[(HMIm)BF 4 ]中进行的。离子液体起着溶剂和催化剂的双重作用,用于以优异的收率有效地将芳族醛转化为杂环取代的胺,而不会形成任何不希望的副产物。新合成的化合物(3,6和7通过IR)进行了表征1 H NMR和质谱技术。