1,3-双[3-(2-噻吩基)-3-氧代丙酰基]苯的合成与热稳定性研究  

Study on synthesis and thermogravimetric analysis of 1,3-bis[3-(2-thiophenyl)-3-oxopropan-oyl]benzene

作　　者：刘万云[1,2] 霍平[1] 伍金虎[3] 梅光泉[1] 

机构地区：[1]宜春学院江西省高校应用化学与化学生物学重点实验室,江西宜春336000 [2]宜春学院江西省天然药物活性成分研究重点实验室,江西宜春336000 [3]宜春学院高安校区,江西高安330800

出　　处：《化学试剂》2010年第12期1073-1075,1126,共4页Chemical Reagents

基　　金：江西省自然科学基金资助项目(2008GZH0063);江西省教育厅科技项目(GJJ08528;GJJ10559)

摘　　要：以间二苯甲酸二甲酯和2-乙酰噻吩为原料合成了标题化合物。采用核磁共振谱、质谱、红外光谱、紫外-可见光谱和元素分析对化合物进行结构表征。在氮气气氛中用热重-差示扫描量热分析法对其进行了热分析研究：230~445℃之间质量损失80.30%,最后的固体残留物为苯骨架不完全燃烧的残留物。在167℃出现放热峰,在163、179和352℃分别出现强吸热峰。In this paper,1,3-bis[3-（2-thiophenyl）-3-oxopropan-oyl]benzene was synthesized from dimethyl isophthalate and 2-acetyl thiophene.The target product was a yellow needle-like crystal,with its yield reaching 52%.Its molecular structure was characterized by NMR,MS,IR,UV-Vis spectroscopy and elemental analysis.The thermal properties of 1,3-bis[3-（2-thiophenyl）-3-oxopropan-oyl]benzene were studied based on the TG-DTG and DSC-DDSC analyses in nitrogen.In a temperature range between 230～445 ℃,a mass loss of 80.30% was observed.The last solid residue was considered generally as the remnants of benzene because of incomplete combustion.The maximum peak at 167 ℃ in DTG analysis was observed by exothermic decomposition reaction.The maximum peaks at 163 ℃,179 ℃ and 352 ℃ in DSC were observed by endothermic reaction,respectively.

关 键 词：1 3-双[3-(2-噻吩基)-3-氧代丙酰基]苯 双Β-二酮 合成 表征 热分析 

分 类 号：O625.34[理学—有机化学]