5-氨基-2-(对氨基苯)苯并噁唑的合成  

Synthesis of 5-amino-2-(p-aminophenyl)benzoxazole

作　　者：梁栎桦[1] 杨光[1] 刘超[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100083

出　　处：《化学试剂》2008年第1期33-34,45,共3页Chemical Reagents

摘　　要：以2,4-二氨基苯酚盐酸盐和对氨基苯甲酸为原料合成了5-氨基-2-(对氨基苯)苯并噁唑。反应过程中,首次加入SnCl2作为还原剂,抑止了2,4-二氨基苯酚盐酸盐的氧化,有效地提高了反应产率。同时研究了一种有效的提纯5-氨基-2-(对氨基苯)苯并噁唑的方法。与其他方法相比,该方法操作过程简便,产率较高,产物可作为聚合反应的单体原料。5-Amino-2-（ p-aminophenyl ） benzoxazole was synthesized from 2,4-diaminophenol dihydrochloride and p-aminobenzoic acid with the reductive agent SnCl2 added to suppress the oxidation of 2,4-diaminophenol dihydrochloride and to enhance the yield of 5-amino-2-（p-aminophenyl） benzoxazole. In addition, an effective method for purification of 5-amino-2-（p-aminophenyl） benzoxazole was established. In comparison with other methods, the said method had some advantages thanks to its convenience in operation, high product yield and the possibility of using the product as a monomer during polymerization.

关 键 词：合成 提纯 苯并噁唑 

分 类 号：O626.24[理学—有机化学]