Syntheses,Crystal Structures,and Spectral Characterization of Three New Asymmetrical Substituted Triaryltriazoles |
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| Authors: | Jian Zhao Guo‐Ping Shen Yu Zhang Xuan Shen Dun‐Ru Zhu |
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| Institution: | 1. State Key Laboratory of Materials‐oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, , Nanjing, 210009 China;2. Jiangsu Key Laboratory for Chemistry of Low‐Dimensional Materials, Huaiyin Normal University, , Huaian, 223300 China |
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| Abstract: | Triaryltriazoles are of interest in iron(II) complexes designed to study spin‐crossover properties. In this study, three new asymmetrical substituted triaryltriazoles, 3‐(p‐R‐phenyl)‐4‐(p‐chlorophenyl)‐5‐(2‐pyridyl)‐1,2,4‐triazoles (R = OCH3, 5a ; Cl, 5b ; Br, 5c ), were successfully synthesized from 2‐picolinic acid by a three‐step reaction through an intermediate N‐(p‐R‐phenylcarbonyl)‐N′‐(2‐pyridylcarbonyl)hydrazine ( 4a–4c ). Yield of 5a–5c is in the range from 74 to 87%. The compounds 5a–5c were characterized by UV, FTIR, 1H‐NMR, electrospray ionization mass spectrum spectra, and elemental analysis. Additionally, the absolute configurations of 5a–5c were determined by single crystal X‐ray crystallography. |
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