Syntheses, Crystal Structures, and Spectral Characterization of Three New Asymmetrical Substituted Triaryltriazoles
作者:Jian Zhao、Guo-Ping Shen、Yu Zhang、Xuan Shen、Dun-Ru Zhu
DOI:10.1002/jhet.949
日期:2012.9
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)
三芳基三唑是铁(II)配合物的研究对象,这些配合物旨在研究自旋交联性质。在这项研究中,三个新的非对称取代的triaryltriazoles,3-(p -R -苯基)-4-(p -氯苯基)-5-(2-吡啶基)-1,2,4-三唑(R = OCH 3,图5a ; Cl,5b ; Br,5c),是由2-吡啶甲酸通过三步反应通过中间体N-(对-R-苯基羰基)-N '-(2-吡啶基羰基)肼(4a-4c)成功合成的)。5a-5c的产率在74%到87%之间。化合物5a-5c具有UV,FTIR,1 H-NMR,电喷雾电离质谱图和元素分析。此外,5a-5c的绝对构型由单晶X射线晶体学确定。