摘要
以聚乙二醇400（PEG-400）为催化剂,二氯甲烷为溶剂,苯甲酰氯、硫氰酸铵和2-氨基苯并噻唑为原料,合成了N-苯甲酰基-N＇-苯并噻唑硫脲（Ⅰ）。该化合物结构经元素分析、~1HNMR及FTIR表征。利用UV-vis和~1HNMR测试了其对F~–、AcO~–、Cl~–、I~–、Br~–、H_2PO_4~–、CO_3^（2–）、SO_3^（2–）、NO_3~–和CN–10种阴离子的识别性能。结果表明,Ⅰ的DMSO溶液中加入F–时,284 nm处吸收峰强度降低,338 nm处吸收峰强度增大。Ⅰ的DMSO溶液中加入Ac O–时,284 nm处吸收峰强度降低,335 nm处吸收峰强度增大。~1HNMR结果表明,Ⅰ与阴离子间以氢键相结合,根据Job＇s曲线得出,该化合物与F–之间形成1∶1型氢键缔合物,与Ac O–之间形成2∶1型氢键缔合物。
N-benzoyl-N＇-benzothiazole thiourea（compound Ⅰ） was synthesized using benzoyl chloride, ammonium thiocyanate and 2-aminobenzothiazole as raw materials, methylene dichloride as solvent in the presence of a catalytic amount of PEG-400. The structure of compound I was characterized by elementary analysis, 1 HNMR and FTIR. The recognition properties of compound Ⅰ with ten anions（F–, Ac O–, Cl–, I–, Br–, H2 PO4–, CO32–, SO32–, NO3– and CN–） were studied in DMSO solution by UV-vis and 1 HNMR. The results showed that when F– was added in DMSO solution of compound Ⅰ, the absorption intensity of compound Ⅰ at 284 nm decreased, while that at 338 nm increased. When Ac O– was added in DMSO solution of compound Ⅰ, the absorption intensity at 284 nm decreased, and that at 335 nm increased. The Job plots indicated that compound Ⅰ with F– and Ac O– through hydrogen bonds formed stable 1∶1 and 2∶1 complexes, respectively.
作者
黄运瑞
陈欣
韩文芬
HUANG Yun-rui;CHEN Xin;HAN Wen-fen(College of Chemistry and Pharmaceutical Engineering,Nanyang Normal University,Nanyang 473061,Henan,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2018年第8期1267-1270,1319,共5页
Fine Chemicals
基金
河南省科技厅基础与前沿研究项目(162300410021)~~
关键词
酰基硫脲
合成
阴离子识别
功能材料
acyl thiourea
synthesis
anion recognition
functional materials
