由2,3-二氨基-1,4-萘醌和化学计量的适当醛在二甲亚砜中作为溶剂可以轻松制备新的咪唑。反应进行数小时。该程序可以推广到不同类别的醛。2,3-二氨基萘醌在乙酸中回流时,也能以良好的收率获得2-甲基-1 H-萘[2,3 - d ]咪唑-4,9-二酮。使用NMR实验对新合成的咪唑的结构进行了广泛的研究。J.杂环化学。(2011)。
Facile synthesis of new imidazoles from direct reaction of 2,3-diamino-1,4-naphthoquinone with aldehydes
作者:Ashraf A. Aly、Alaa A. Hassan、Alan B. Brown、Kamal M. El-Shaieb、Tarek M. I. Bedair
DOI:10.1002/jhet.582
日期:2011.7
New imidazoles were easily prepared from 2,3‐diamino‐1,4‐naphthoquinone and stoichiometric quantities of the appropriate aldehydes in dimethyl sulfoxide as a solvent. The reaction proceeded for few hours. The procedure can be generalized to different classes of aldehydes. 2‐Methyl‐1H‐naphtho[2,3‐d]imidazole‐4,9‐dione was also obtained in good yield during refluxing of 2,3‐diaminonaphthoquinone in acetic
由2,3-二氨基-1,4-萘醌和化学计量的适当醛在二甲亚砜中作为溶剂可以轻松制备新的咪唑。反应进行数小时。该程序可以推广到不同类别的醛。2,3-二氨基萘醌在乙酸中回流时,也能以良好的收率获得2-甲基-1 H-萘[2,3 - d ]咪唑-4,9-二酮。使用NMR实验对新合成的咪唑的结构进行了广泛的研究。J.杂环化学。(2011)。