期刊
POLYHEDRON
卷 146, 期 -, 页码 73-80出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2018.02.013
关键词
Cu(II) schiff base complex; Hlrshfeld analysis; Catalytic activity; 2-Amino-4H-pyrans; Tetrahydro-4H-chromenes
资金
- Shahid Bahonar University of Kerman
- Czech Science Foundation [15-12653S, CZ.2.16/3.1.00/24510]
A novel quinazoline Schiff base ligand, 3-((5-bromo-2-hydroxy-3-methoxybenzylidene)amino)-2methylquinazolin-4(3H)-one [HL] and its mixed-ligand Cu(II) complex [Cu(L')(Imi)], [L'] - 2-acetamidoN-(5-bromo-2-oxidobenzylidene) benzohydrazonate, [Imi] -imidazole, were synthesized and characterized by elemental analysis, FT-IR and UV-Vis spectrometry and conductivity measurements. The structure of [HL] and its Cu(II) complex have been accomplished by single crystal X-ray diffraction. The Hirshfeld surface analysis has also been performed to evaluate intermolecular interactions. All experimental results confirmed that in this complex Cu(II) central atom is coordinated by the donor atoms of deprotonated Schiff base ligand and nitrogen of imidazole. Furthermore, the catalytic activities of this complex have been investigated on the electrophilic reaction of malononitrile along with aldehydes, ethyl acetoacetate and dimedone in ethanol solution in order to obtain 2-amino-4H-pyrans and tetrahydro-4Hchromenes, respectively. (C) 2018 Elsevier Ltd. All rights reserved.
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