2-噻吩甲酰基-2-咔唑-N-丁基三氟丙酮化合物的合成与光谱研究  

Study on the Synthesis and Spectra of 2-Thenoyl-2-Carbazolyl-N-Butyltrifluoroacetone

作　　者：余倩[1] 罗宗铭[1] 杨迟[1] 方岩雄[1] 张焜[1] 曹显懿[1] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510090

出　　处：《光谱学与光谱分析》2004年第2期162-165,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金 ( 2 0 10 5 0 0 3 ) ;广东省自然科学基金 ( 980 12 8)资助项目

摘　　要：在苯和 5 0 %NaOH介质中 ,温度在 70～ 80℃时 ,1 ,4 二溴丁烷与咔唑 (CZ)反应 ,生成N 溴丁基咔唑 (BCZ)。在丙酮和K2 CO3 介质中 ,温度在 5 0℃时 ,N 溴丁基咔唑与噻吩甲酰三氟丙酮 (TTA)反应 ,生成 2 噻吩甲酰基 2 咔唑 N 丁基三氟丙酮 (TCBTA)。TCBTA为浅褐色针状结晶 ,熔点 2 1 1～ 2 1 4℃。详细研究了CZ ,BCZ ,TTA和TCBTA的紫外光谱和红外光谱 ,以及TCBTA的色谱 /质谱 ,证实了TCBTA合成产物的真实性。在氯仿中TCBTA的最大吸收波长为 2 4 1 ,2 6 5和 2 95nm ,摩尔吸光系数依次为 1 88× 1 0 5,1 2 5× 1 0 5和 1 0 8×1 0 5L·mol-1 ·cm-1 。TCBTA用于Fe(Ⅲ )和Nd(Ⅲ )的萃取 ,萃取率比TTA分别高 3倍和 1 6倍 ,与Nd(Ⅲ )形成络合物的荧光强度 ,TCBTA是TTA的 6倍 ,表明TCBTA具有优良的光敏特性。In phene 50% NaOH medium, 1, 4 dibromobutane reacts with carbazole (CZ) to form N bromobutylcarbazole (BCZ) at 70 80℃. The 2 thenoyl 2 carbazolyl N butyltrifluoroacetone(TCBTA) was synthesized by reaction of BCZ with 2 thenoyltrifluoroacetone(TTA) in acetone K 2CO 3 medium at 50℃. The TCBTA is a light brown crystal with m. p. of 211 214℃. The structure of the synthesized TCBTA was characterized by UV, IR and GC/MS, and the UV and IR spectra of CZ , BCZ and TTA have been studied. In chloroform, TCBTA has three maximum absorptions at 241, 265 and 295 nm whose molar absorptivity is 1 88×10 5, 1 25×10 5 and 1 08×10 5 L·mol -1 ·cm -1 , respectively. Extraction rate of iron(Ⅲ) and neodymium(Ⅲ) by TCBTA in chloroform rises by 3 and 1 6 times compared with TTA. The fluorescence of TCBTA Nd(Ⅲ) complex is 5 times higher than TTA Nd(Ⅲ) complex. It was shown that TCBTA has excellent photosensitivity.

关 键 词：2-噻吩甲酰基-2-咔唑-N-丁基三氟丙酮化合物 合成 紫外光谱 红外光谱 质谱 稀土元素 J9.二酮化合物 

分 类 号：TN383[电子电信—物理电子学] O622.4[理学—有机化学]