A green approach for efficient α-halogenation of β-dicarbonyl compounds and cyclic ketones using N-halosuccinimides in ionic liquids
作者:H.M. Meshram、P.N. Reddy、P. Vishnu、K. Sadashiv、J.S. Yadav
DOI:10.1016/j.tetlet.2005.11.141
日期:2006.2
Room temperature ionic liquids (ILs) are used as a green recyclable reaction media for the α-monohalogenation of 1,3-diketones, β-keto-esters and cyclic ketones with N-halosuccinimides in excellent yields in the absence of a catalyst. The recovered ionic liquid was reused five to six times with consistent activity.
室温离子液体(ILs)用作绿色可循环使用的反应介质,用于在没有催化剂的情况下以极好的收率将1,3-二酮,β-酮酸酯和环状酮与N-卤代琥珀酰亚胺进行α-单卤代反应。回收的离子液体以一致的活性重复使用五到六次。