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排序方式: 共有446条查询结果,搜索用时 15 毫秒
441.
Nicolai A. Aksenov Alexander V. Aksenov Igor A. Kurenkov Nikita K. Kirillov Dmitrii A. Aksenov Nikolai A. Arutiunov Daria S. Aksenova Michael Rubin 《Molecules (Basel, Switzerland)》2022,27(9)
A highly efficient and expeditious one-pot approach towards 2-(3-oxoindolin-2-yl)acetonitriles was designed, which involves a base-assisted aldol reaction of ortho-nitroacetophenones, followed by hydrocyanation, triggering an unusual reductive cyclization reaction. 相似文献
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Inga M. Aladzheva Dmitrii I. Lobanov Ol'ga V. Bykhovskaya Pavel V. Petrovskii Konstantin A. Lyssenko Tatyana A. Mastryukova 《Heteroatom Chemistry》2003,14(7):596-602
A novel facile one‐pot synthesis of the 1,2‐azaphospholanes by intramolecular alkylation of 3‐halopropyl amides of tricoordinate phosphorus has been suggested. Using this method, a series of the differently N‐substituted 1,2‐azaphospholanium salts were synthesized. 3‐Aminopropylphosphine oxides were obtained by hydrolysis of the salts. A probable mechanism of the 1,2‐azaphospholanium salts formation is discussed. © 2003 Wiley Periodicals, Inc. Heteroatom Chem 14:596–602, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.10209 相似文献
444.
Dmitrii A. Mologin Pavel G. Khalatur Alexei R. Khokhlov 《Macromolecular theory and simulations》2002,11(5):587-607
Using the cellular‐automaton‐based simulation technique, we study the processes of self‐organization in the systems of comb‐like copolymers with strongly attracting (end‐functionalized) side‐chains in the presence of low‐molecular‐weight water‐like solvent. This molecular level modeling reflects the basic features of the specific structural organization of perfluorosulfonic acid ionomer (Nafion) with certain amount of physisorbed water. We compare the simulation data with the existing phenomenological models used in the literature to describe the structural features of water‐swollen ionomer membranes and the results of our previous calculations based on the mutually consistent integral equation theory and the chemically realistic rotational isomeric state (RIS) model. Our attention is focused on the effect of water on the local aggregate structure, the shape of mixed, water‐containing aggregates, and on system morphology. 相似文献
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