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2,2′-苯二氧甲基二苯并咪唑类化合物的微波合成
Synthesis of 2,2′-benzdioxymethyl dibenzimidazoles under microwave-irradiation
【摘要】 苯二氧乙酸和邻苯二胺在多聚磷酸(PPA)和盐酸(4mol/L)催化下,用650~850W微波辐射10~15min,合成了3种尚未见报道的2,2′-o-、2,2′-m-和2,2′-p-苯二氧甲基二苯并咪唑,其结构经1HNMR、13CNMR、MS、红外光谱和元素分析确证。
【Abstract】 Three compounds of benzdioxymethyldibenzimidazole were synthesized under microwave-irradiation using o-(m-,p-)phenylenedioxydiacetic acid and o-phenylene diamine as starting materials in the presence of polyphosphoric acid (PPA) and 4 mol/L hydrochloric acid as the catalyst.The power of microwave irradiation applied was 650~850 W.The reaction time was 10~15 min.Their structures were confirmed by IR,1HNMR, 13CNMR,MS and elementary analysis.These compounds were reported for the first time.
【关键词】 苯二氧甲基二苯并咪唑;
多聚磷酸(PPA)和盐酸(4mol/L)催化剂;
微波辐射;
合成;
【Key words】 benzdioxymethyldibenzimidazole; PPA-HCl catalyst; microwave-irradiation; synthesis;
【Key words】 benzdioxymethyldibenzimidazole; PPA-HCl catalyst; microwave-irradiation; synthesis;
【基金】 国家自然科学基金资助项目(20671077);甘肃省教育厅研究生导师科研项目(0601-24)
- 【文献出处】 化学试剂 ,Chemical Reagents , 编辑部邮箱 ,2007年08期
- 【分类号】O626.23
- 【被引频次】2
- 【下载频次】268