作者:Li-Ping Liu、Liang-Min Yu、Zhi-Ming Zhang、Xue-Feng Yan
DOI:10.14233/ajchem.2013.14087
日期:——
A one-pot two-component Friedel-Crafts reaction of 1-amidoalkyl-2-naphthols by the condensation of 2-naphthol with various N-methyl hydrocarbon unsaturated amides in presence of the concentrated sulphuric acid as catalyst and anhydrous ethyl alcohol as solvent to form the corresponding amidoalkyl naphthols is described. This procedure offers advantages such as eco-friendly, shorter reaction times, simple work-up, excellent yields and recovery and reusability of the catalyst. The spectroscopic properties are assessed for their effectiveness and the fluorescent intensity sequence of three compounds in two different solvents follows the sequence: 1-N-methacrylamide-2-naphthol > 1-N-methy phthalimide-2-naphthol > 1-N-methy phthalimide-2-naphthol.
描述了一种一锅两组分的弗里德尔-克拉夫茨反应,通过将2-萘醇与各种N-甲基碳氢链不饱和酰胺在浓硫酸催化剂和无水乙醇溶剂的存在下进行缩合,形成相应的酰胺烷基萘醇。该程序具有生态友好、反应时间短、操作简单、产率优异以及催化剂的回收和重复使用等优点。对其光谱性质进行了评估,结果表明在两种不同溶剂中三种化合物的荧光强度顺序为:1-N-甲基丙烯酰胺-2-萘醇 > 1-N-甲基邻苯二甲酰亚胺-2-萘醇 > 1-N-甲基邻苯二甲酰亚胺-2-萘醇。