Convenient methods for the preparation of stable, fused selenazolinium salt systems with a Se–N+ bond have been developed. The mechanism for the formation of the selenazole cycle was investigated in detail by conducting multinuclear NMR experiments. The ability of these compounds to form stable inner salts was demonstrated. We have shown the glutathione peroxidase (GPx) like properties of selenazolopyridinium
已经开发了用于制备稳定的、具有 Se-N+ 键的稠合硒唑啉盐体系的便捷方法。通过进行多核核磁共振实验,详细研究了硒唑循环的形成机制。证明了这些化合物形成稳定内盐的能力。我们已经通过氧化含硫的天然氨基酸以及芳香醛和杂芳香醛,展示了硒唑并吡啶鎓盐的类似谷胱甘肽过氧化物酶 (GPx) 的特性。大多数化合物的分子结构已通过 X 射线衍射研究证实。
A simple method for the preparation of selenopheno[3,2-b] and [2,3-b]thiophenes
作者:Pavel Arsenyan
DOI:10.1016/j.tetlet.2014.03.024
日期:2014.4
A simple strategy for the preparation of novel selenopheno[3,2-b] and [2,3-b]thiophenes by treatment of ethynylthiophenes with selenium(I), (II), and (IV) chlorides and bromides is elaborated.
阐述了一种通过用氯化硒和氯化硒处理乙炔基噻吩来制备新型硒基[3,2- b ]和[2,3- b ]噻吩的简单策略。
2,6-Dihalo-9-selenabicyclo[3.3.1]nonanes and their complexes with selenium dihalides: synthesis and structural characterisation
作者:Vladimir A. Potapov、Svetlana V. Amosova、Elena V. Abramova、Maxim V. Musalov、Konstantin A. Lyssenko、M. G. Finn
DOI:10.1039/c5nj00684h
日期:——
2,6-Dihalo-9-selenabicyclo[3.3.1]nonanes form the 2 : 1 complexes with SeCl2and SeBr2, which are the first representatives of coordination compounds with the Se⋯Se⋯Se bonds.
Synthesis of new functionalized organoselenium compounds by heterocyclization of selenium dihalides with pent-4-en-1-ol
作者:V. A. Potapov、M. V. Musalov、E. O. Kurkutov、M. V. Musalova、A. I. Albanov、S. V. Amosova
DOI:10.1134/s1070428016030088
日期:2016.3
The reaction of selenium dihalides with pent-4-en-1-ol has been carried out for the first time. Efficient procedures for the synthesis of previously unknown bis(tetrahydrofuran-2-ylmethyl) selenide, dihalobis( tetrahydrofuran-2-ylmethyl)-λ4-selanes, and bis(tetrahydrofuran-2-ylmethyl) selenoxide have been developed on the basis of this reaction. The product structures have been studied by 1H, 13C,
二卤化硒与pent-4-en-1-ol的反应首次进行。对先前未知的双(四氢呋喃-2-基甲基)硒化物,dihalobis(四氢呋喃-2-基甲基)-λ的合成有效的程序4 -selanes,双(四氢呋喃-2-基甲基)硒亚砜已被在此基础上发展起来的反应。已经通过1 H,13 C和77 Se NMR研究了产物结构。双(四氢呋喃-2-基甲基)硒化物和dihalobis(四氢呋喃-2-基甲基)-λ 4个-selanes表示其显示可在不同信号的两个非对映体的等摩尔混合物13 C和77Se NMR谱。在甲醇中用高碘酸钠氧化双(四氢呋喃-2-基甲基)硒化物,生成相应的硒氧化物,该硒氧化物由4种非对映异构体组成。
Unexpected Regioselective Reactions of 2-Bromomethyl-1,3-thiaselenole with Dithiocarbamates: The First Example of Nucleophilic Attack at Selenium Atom of Seleniranium Intermediate
former compounds. DFT calculations show that the reactions proceed via a seleniranium intermediate. The formation of the products is the result of nucleophilic attacks of dithiocarbamate anion either at the selenium atom or at the carbon-2 atom of the seleniranium cation. The reaction leading to sulfanylselanylethenyl vinyl sulfides represents the firstexample of nucleophilic attack at the selenium atom