已经合成了新型的2-(2-羟苯基)取代的咪唑。已经研究了1-羟基咪唑衍生物的质子互变异构。X射线衍射分析和IR光谱表明,在固态下,标题化合物以N-羟基互变异构体的形式存在。讨论了新咪唑衍生物的1 H和13 C NMR光谱。已经表明,在氯仿溶液中,以N-羟基互变异构形式存在5-羰基取代的2-(2-羟基苯基)-1-羟基咪唑。向DMSO的过渡导致正在研究中的N-氧化物互变异构体1-羟基咪唑的存在。
Synthesis and study of prototropic tautomerism of 2-(2-hydroxyphenyl)-1-hydroxyimidazoles
作者:Polina A. Nikitina、Aleksandr S. Peregudov、Tatiana Yu. Koldaeva、Ludmila G. Kuz'mina、Evgeniy I. Adiulin、Iosif I. Tkach、Valery P. Perevalov
DOI:10.1016/j.tet.2015.06.032
日期:2015.8
Novel 2-(2-hydroxyphenyl) substituted imidazoles have been synthesized. A prototropictautomerism of the 1-hydroxyimidazole derivatives has been studied. X-ray diffraction analysis and IR-spectroscopy have revealed that in the solid state the title compounds exist as the N-hydroxy tautomers. The 1H and 13C NMR spectra of the new imidazole derivatives are discussed. It has been shown that in chloroform
已经合成了新型的2-(2-羟苯基)取代的咪唑。已经研究了1-羟基咪唑衍生物的质子互变异构。X射线衍射分析和IR光谱表明,在固态下,标题化合物以N-羟基互变异构体的形式存在。讨论了新咪唑衍生物的1 H和13 C NMR光谱。已经表明,在氯仿溶液中,以N-羟基互变异构形式存在5-羰基取代的2-(2-羟基苯基)-1-羟基咪唑。向DMSO的过渡导致正在研究中的N-氧化物互变异构体1-羟基咪唑的存在。