Efficient Synthesis of 3-Phenylnaphtho[2,3-b]furan-4,9-diones in Water and Their Fluorimetric Study in Solutions
作者:Renzun Zhang、Dongcheng Xu、Jianwu Xie
DOI:10.1002/cjoc.201200499
日期:2012.8
A simple and efficient protocol has been developed for the synthesis of 3‐phenylnaphtho[2,3‐b]furan‐4,9‐diones by domino reaction of α‐bromonitroalkenes to 2‐hydroxynaphthalene‐1,4‐dione. With the optimal reaction conditions [NaOAc (120 mol%), water, 70°C, 7 h], the scope of the domino reaction was explored and the green approach provided the desired products in moderate to good yields at elevated
通过α-溴硝基烯烃与2-羟基萘-1,4-二酮的多米诺反应,已开发出一种简单有效的方法来合成3-苯基萘[2,3- b ]呋喃-4,9-二酮。在最佳反应条件下[NaOAc(120 mol%),水,70°C,7 h],探索了多米诺骨牌反应的范围,绿色方法提供了所需的产物,在升高的温度和温度下,在中等温度到良好的收率下,介导的条件。还提供了对该反应的机械合理化。通过紫外可见光谱和荧光光谱检查了化合物的吸收特性。所有化合物在溶液中均发出荧光,发出蓝光(432–433 nm),绿光(512–536 nm)或黄光(591 nm)。