Synthetic routes to alkylvinyl tellurides by direct reaction of metallic tellurium, acetylene and alkyl halide in the system KOH-SnCl2-H2O and successive interaction of divinyl telluride with lithium and alkyl halide in liquid ammonia have been developed.
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。
Non-catalyzed addition of secondary phosphine chalcogenides to divinyl chalcogenides under solvent-free conditions
作者:Nina K. Gusarova、Nataliya A. Chernysheva、Svetlana V. Yas’ko、Lyudmila V. Klyba、Boris A. Trofimov
DOI:10.1080/17415993.2016.1191635
日期:2016.9.2
ABSTRACT Secondary phosphine chalcogenides, R2PX (R═(CH2)2Ph, Ph; X = S, Se), react with divinyl chalcogenides, (CH2═CH)2Y (Y = S, Se, Te), at the 2:1 molar ratio (80–82°C, 56–80 h) in the absence of both catalysts (initiators) and solvents to quantitatively afford the corresponding anti-Markovnikov diadducts. Even at the equimolar reactant ratio, the diadducts are the major products, though monoadducts
Efficient and selective syntheses of novel unsaturated chalcogen-containing pyridine derivatives
作者:Vladimir A. Potapov、Maria V. Musalova、Roman S. Ishigeev、Maxim V. Musalov、Vladimir A. Panov、Alfiya G. Khabibulina、Svetlana V. Amosova、Kuldip K. Bhasin
DOI:10.1016/j.tetlet.2016.10.066
日期:2016.11
Regio- and stereoselective syntheses of novel unsaturated chalcogen-containing pyridine derivatives [3-(vinylsulfanyl)- and 3-(vinylselanyl)-2H,3H-[1,3]thiazolo[3,2-a]pyridin-4-ium chlorides, ethyl 3-(2-pyridinylsulfanyl)-2-propenoate, 1-phenyl-3-(2-pyridinylsulfanyl)-2-propen-1-one, allenyl 2-pyridinyl telluride] have been developed using the previously unknown electrophilic and nucleophilic reactions
新型的不饱和含硫族元素的吡啶衍生物[3-(乙烯基硫烷基)-和3-(乙烯基硒基)-2 H,3 H- [1,3]噻唑并[3,2- a ]吡啶-4-的区域和立体选择性合成氯化铵,3-(2-吡啶基硫烷基)-2-丙烯酸乙酯,1-苯基-3-(2-吡啶基硫烷基)-2-丙烯-1-酮,烯丙基2-吡啶基碲化物]已经使用以前未知的亲电试剂进行了开发。 2-吡啶基硫烷基氯和2-吡啶硫属元素酸酯的亲核反应。