摘要
以自制的水杨酰肼(4)、间苯二甲酰氯(5)为原料,以DMF为溶剂、三乙胺作缚酸剂,间苯二甲酰氯(5)与水杨酰肼(4)摩尔分数为1.00/2.75,于90℃反应9 h,合成了N,N′-二(2-羟基苯甲酰基)-1,3-苯二甲酰肼(7),产品的收率达到79.3%.在相同的条件下,采用对苯二甲酰氯(6)为原料,合成了N,N′-二(2-羟基苯甲酰基)-1,4-苯二甲酰肼(8),收率达到了80.2%.其结构经1H NMR和MS等技术得到确证.并进行了热重分析和针对PVC应用研究,发现其具有良好的热稳定作用.
Synthesis of N,N'-bis(2-salicyloyl)isophthalic acid dihydrazide {7) was synthesized with self- made salicylhydrazide (4) and isophthaloyl chloride (5) as raw materials, DMF as a solvent, triethylamine as an antacid,n{isophthaloyl chloride) : n(salicylhydrazide) = 1.00:2.75, for 9 h at 90 ℃, the yield was achieved 79.3%. At the same condition, N, N′-bis(2-salicyloyl) terephthalic acid dihydrazide ( 8 ) was synthesized, and the yield was 80. 2%. The two products were confirmed by 1H NMR and MS etc. , and they were carried with TG analysis and applied research to PVC, and were shown a good thermal stability.
出处
《湘潭大学自然科学学报》
CAS
CSCD
北大核心
2010年第2期75-79,共5页
Natural Science Journal of Xiangtan University
基金
湖南省教育厅科学基金资助项目(06C831)
第二批湖南省大学生研究性学习与创新实验计划项目(No.87)