Divinyl selenide: conformational study and stereochemical behavior of its<sup>77</sup>Se<sup>1</sup>H spin-spin coupling constants
作者:Yury Yu. Rusakov、Leonid B. Krivdin、Natalia V. Istomina、Vladimir A. Potapov、Svetlana V. Amosova
DOI:10.1002/mrc.2291
日期:2008.10
Theoretical energy‐based conformational analysis of divinylselenide performed at the MP2/6‐311G** level is substantiated by the second‐order polarization propagator approach (SOPPA) calculations and experimental measurements of its 77Se1Hspin–spincouplingconstants, demonstrating marked stereochemicalbehavior in respect of the internal rotation of both vinyl groups around the SeC bonds. Based
(1-(1,3-butadienyl) sulfide, and methylthiomethyl 1-(1,4-butadienyl) selenide, vinyl 1-(1,3-butadienyl) sulfide, and methylthiomethyl 1-(1,3-butadienyl) selenide (the latter two with DMSO participation). The reaction of vinylacetate with tellerium gives mainly di-1-(1,3-butadienyl) telluride. A series of reactions between DMSO and selenium leading to dimethyl sulfide, dimethyl sulfoselenide, and methylthiomethyl
Oxidation and halogenation of divinyl selenide. first synthesis of divinyl selenoxide
作者:E. O. Kurkutov、V. A. Potapov、S. V. Amosova
DOI:10.1134/s107042801605002x
日期:2016.5
divinyl selenide with sodium periodate. At the action of S-nucleophiles on the divinyl selenoxide it is reduced to divinyl selenide. The reaction of divinyl selenide with an equimolar amount of sulfuryl chloride or bromine led to halogenation products at the selenium atom: divinylselenium dichloride and divinylselenium dibromide. A rearrangement was discovered of divinylselenium dibromide into vinyl(1,2-
Efficient Regioselective Synthesis of Novel Water-Soluble 2H,3H-[1,4]thiazino[2,3,4-ij]quinolin-4-ium Derivatives by Annulation Reactions of 8-quinolinesulfenyl Halides
作者:Vladimir A. Potapov、Roman S. Ishigeev、Svetlana V. Amosova
DOI:10.3390/molecules26041116
日期:——
Regioselective synthesis of novel 2H,3H-[1,4]thiazino[2,3,4-ij]quinolin-4-ium derivatives has been developed by annulationreactions of 8-quinolinesulfenyl halides with vinyl chalcogenides (vinyl ethers, divinyl sulfide, divinyl selenide and phenyl vinyl sulfide) and tetravinyl silane. The novel reagent 8-quinolinesulfenyl bromide was used in the annulationreactions. The influence of the substrate
通过 8-喹啉硫基卤化物与乙烯基硫属化物(乙烯基醚、二乙烯基醚)的环化反应,开发了新型 2 H ,3 H -[1,4]thiazino[2,3,4- ij ]quinolin-4-ium 衍生物的区域选择性合成。硫化物、二乙烯基硒化物和苯基乙烯基硫醚)和四乙烯基硅烷。成环反应中使用了新型试剂 8-喹啉磺基溴。研究了底物结构和杂原子性质对反应方向和产物收率的影响。在与乙烯基硫属化物和四乙烯基硅烷的反应中观察到相反的区域化学。所得稠合杂环是新型水溶性功能化化合物,具有良好的生物活性。
Synthesis of a novel family of water-soluble 2H,3H-[1,3]thia- and -selenazolo[3,2-a]pyridin-4-ium heterocycles by annulation reactions
作者:Vladimir A. Potapov、Roman S. Ishigeev、Svetlana V. Amosova、Tatyana N. Borodina
DOI:10.1016/j.tetlet.2019.01.001
日期:2019.2
Regioselective synthesis of a novel family of water-soluble 2H,3H-[1,3]chalcogenazolo[3,2-a]pyridin-4-ium derivatives was developed based on 2-pyridinesulfenyl and -selenenyl halides and unsaturated compounds. The annulationreactions with divinyl sulfide, selenide and N-vinylpyrrolidin-2-one led to addition of the chalcogen atom to the terminal carbon of the double bond whereas the reaction with tetravinylsilane
基于2-吡啶硫基和-硒烯基卤化物和不饱和化合物,开发了一种新型的水溶性2 H,3 H- [1,3]硫族lc唑[3,2 - a ]吡啶-4-鎓衍生物的区域选择性合成。与二乙烯基硫化物,硒化物和N-乙烯基吡咯烷酮-2-酮的环化反应导致将硫族元素原子加到双键的末端碳上,而与四乙烯基硅烷的反应则以相反的区域化学进行。从2,3-二氢呋喃和环烯烃获得三环稠合杂环。该产品代表了用于有机合成和可能的药物发现的新型有前途的支架。