Synthesis of 4-phenylethynylphthalic anhydride, a useful end-capping agent for polyimides

被引：1
|
作者：
Yang, Mei-Jia [1 ]
Shao, Tao [1 ]
Men, Jian [1 ]
Gao, Guo-wei [1 ]
Chen, Hua [1 ]
机构：
[1] Sichuan Univ, Coll Chem, Chengdu 610064, Peoples R China
来源：
JOURNAL OF CHEMICAL RESEARCH | 2012年 / 06期
关键词：
polyimides; 4-phenylethynylphthalic anhydride; Sonogashira coupling reaction; aqueous medium; synthesis; CONVENIENT SYNTHESIS;
D O I：
10.3184/174751912X13366326240908
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hydrolysis and bromination of phthalic anhydride in water gave a mixture of the monosodium salt of 4-bromophthalic acid. These were reacted with phenylacetylene under Sonogashira coupling reaction conditions in an aqueous medium. Acidification afforded 4-phenylethynylphthalic acid and then dehydration of this gave 4-phenylethynylphthalic anhydride in 76% overall yield. Compared with traditional synthetic methods, this method has the advantage of low cost, convenient manipulation and is environmentally friendly.
引用
收藏
页码：379 / 380
页数：2
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