Syntheses,Crystal Structures and Complexing Properties of 1,3-Distal Calix[4]arene Schiff Bases
Syntheses,Crystal Structures and Complexing Properties of 1,3-Distal Calixarene Schiff Bases作者机构:College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P R. China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:2010年第26卷第1期
页 面:38-45页
核心收录:
学科分类:082803[工学-农业生物环境与能源工程] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0828[工学-农业工程] 0804[工学-仪器科学与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金:Supported by the National Natural Science Foundation of China(No.20672091)
主 题:Calixarene Schiffbase Crystal structure Metal complex UV spectroscopy
摘 要:Novel 1,3-distal p-tert-butylcalix[4]arene Schiff bases were efficiently synthesized in three steps. At first p-tert-hutylcalix[4]arene was reacted with N-2-hydroxyethylphthalimide catalyzed by TPP/DEAD or alkylated with ω-hatoalkylphthalimide in the system of K2CO3/KI/CH3COCH3 to give 1,3-distal diphthalimidoalkyl calixarenes, which were in turn hydrazinolyzed to give diaminoalkyl calixarenes. Then with the aid of the condensation of active calixarene amines with salicylaldehyde, 2-hydroxy-l-naphthaldehyde or pyridine-2-carboxaldehyde, a series of 1,3-distal calixarene Schiff bases was prepared in satisfied yields. The single crystal structures and complexing properties of these Schiff bases for transition metal ions were studied.