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微波辅助下苯并噁唑衍生物的合成与结构表征
引用本文:王帆,袁金伟,张瑞,买文鹏,杨亮茹,毛璞,屈凌波.微波辅助下苯并噁唑衍生物的合成与结构表征[J].河南师范大学学报(自然科学版),2015(1):69-73.
作者姓名:王帆  袁金伟  张瑞  买文鹏  杨亮茹  毛璞  屈凌波
作者单位:河南工业大学化学化工学院
基金项目:国家自然科学基金(21172055;21302042);河南省教育厅自然科学研究计划(2011B15007;12A15007;14B150053);郑州市科技创新团队(131PCXTD605)
摘    要:在微波辐射条件下,以邻氨基苯酚衍生物和原甲酸三乙酯为原料,发生分子间和分子内的消去反应合成了5种取代苯并噁唑化合物,其结构通过IR、NMR和ESI MS等证实.通过对反应影响因素的考察,最佳的反应条件是:在无溶剂条件下,邻氨基苯酚衍生物与原甲酸三乙酯的物质的量比为1∶1.5,反应温度为100℃,反应时间为15min,目标产物最高产率可达94.9%.

关 键 词:微波辅助  苯并噁唑  合成  结构表征

Microwave-assisted Synthesis and Structural Characteristic of Benzoxazole Derivatives
WANG Fan;YUAN Jinwei;ZHANG Rui;MAI Wenpeng;YANG Liangru;MAO Pu;QU Lingbo.Microwave-assisted Synthesis and Structural Characteristic of Benzoxazole Derivatives[J].Journal of Henan Normal University(Natural Science),2015(1):69-73.
Authors:WANG Fan;YUAN Jinwei;ZHANG Rui;MAI Wenpeng;YANG Liangru;MAO Pu;QU Lingbo
Institution:WANG Fan;YUAN Jinwei;ZHANG Rui;MAI Wenpeng;YANG Liangru;MAO Pu;QU Lingbo;School of Chemistry and Chemical Engineering,Henan University of Technology;
Abstract:Under the condition of microwave radiation,a series of substituted benzoxazole derivatives were synthesized using the material of 2-aminophenol and triethyl orthoformate via the inter-and intramolecular elimination reaction.The structures of the title compounds were elucidated by IR、1 H NMR、13 C NMR and ESI MS.Furthermore,the reaction conditions were optimized as follows:reaction temperature 100 ℃,reaction time 15 min,the molar ratio of 2-aminophenol and triethyl orthoformate 1∶1.5,under solvent-free condition.Under the optimized conditions,the highest yield of target product reached94.9%.
Keywords:microwave-assisted  benzoxazole  synthesis  structural characterization
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