Synthesis of sterically hindered phenolic compounds from indole and its derivatives
作者:G. N. Nugumanova、S. V. Bukharov、R. G. Tagasheva、M. V. Kurapova、V. V. Syakaev、N. A. Mukmeneva、P. A. Gurevich、A. R. Burilov
DOI:10.1134/s1070428007120093
日期:2007.12
Reactions of 3,5-di-tert-butyl-4-hydroxybenzyl acetate with indole and its derivatives gave a series of sterically hindered phenolic compounds having various functional groups. The products are potentially capable of inhibiting radical chain oxidation processes according to different mechanisms.
New isatin acylhydrazones containing sterically hindered phenolic fragments
作者:A. V. Bogdanov、E. F. Akhmetova、S. V. Bukharov、V. F. Mironov
DOI:10.1134/s1070363214090370
日期:2014.9
Isatin acylhydrazones with sterically hindered phenolic fragments: synthesis and structures
作者:G. N. Nugumanova、R. G. Tagasheva、S. V. Bukharov、D. B. Krivolapov、I. A. Litvinov、V. V. Syakaev、N. A. Mukmeneva、A. R. Burilov
DOI:10.1007/s11172-009-0264-3
日期:2009.9
Isatin acylhydrazones with stericallyhindered phenolic fragments were obtained. Their structures were determined using 1D and 2D 1H and 13C NMR spectroscopy and X-ray diffraction. The products synthesized by condensation of isatin and 1-(3,5-di- tert-butyl-4-hydroxybenzyl)-l H-indole-2,3-dione with 3-(3,5-di- tert-butyl-4-hydroxyphenyl)propiono-hydrazide exist as E- and Z-isomers about the C=N bond
获得了具有空间位阻酚片段的靛红酰基腙。它们的结构是使用一维和二维 1H 和 13C NMR 光谱和 X 射线衍射确定的。靛红和 1-(3,5-di-tert-butyl-4-hydroxybenzyl)-l H-indole-2,3-dione 与 3-(3,5-di-tert-butyl- 4-羟基苯基)丙酰肼以C=N键附近的E-和Z-异构体形式存在。E-Z 异构化发生在沸腾的乙醇中。靛红和 3-(3,5-二-叔丁基-4-羟基苯基)丙酰肼的缩合产物的 E-异构体使用 X 射线衍射进行结构表征:该异构体是酰胺基团的顺式构象异构体,并且具有关于 N—N 键的 E 构型。根据 1H NMR 光谱中 NH 质子信号的浓度依赖性数据,