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2-丙基苯并咪唑的制备

Preparation of 2-Propylbenzimidazole
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摘要 2-丙基苯并咪唑(1)是合成奥美沙坦酯(olmesartan medoxomil)的重要中间体[1],可以邻卤苯胺[2]、邻硝基苯胺[3]或邻苯二胺[4-6]为原料制得。前两种原料的反应总收率均小于65%。本研究参考相关文献[7,8],用邻苯二胺和正丁酸反应制得1(图1),并进行了工艺改进。 2-Propylbenzimidazole was synthesized from o-phenylenediamine and n-butyric acid by azeotropic distillation to remove water with 98 % yield and 99.8 % purity.
出处 《中国医药工业杂志》 CAS CSCD 北大核心 2013年第1期19-20,共2页 Chinese Journal of Pharmaceuticals
关键词 2-丙基苯并咪唑 制备 中间体 合成奥美沙坦酯 2-propylbenzimidazole olmesartan medoxomil antihypertensive drug intermediate synthesis
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参考文献9

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二级参考文献16

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