Výsledky vyhledávání - "S. N. Shvedova"

Investigation of structure of immonium salts by means of13C and1H NMR spectrometry

Autor: V. S. Bogdanov, S. S. Krylov, S. N. Shvedova, V. A. Tartakoyskii

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 36:1829-1834

1. 13C and1H NMR has been used in investigating the structure of azacations. It has been found that the cations exist in the form of Immonium salts, and the contribution of the limiting structure, which is an aminocarbonium ion, is small. The cations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::395dae40d6db17b1eb73d20f2ebb65d6
https://doi.org/10.1007/bf00958323

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Investigation of the simultaneous work of grillages and wall panels on full-scale reinforced-concrete elements

Autor: S. V. Timofeev, S. N. Shvedova, A. I. Yushin

Publikováno v: Soil Mechanics and Foundation Engineering. 2:290-295

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33651d022e3895491a4c35f0e098ce81
https://doi.org/10.1007/bf01704096

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Behavior of trisacetylaminomethane in trifluoroacetic acid

Autor: Lenor I. Khmel’nitskii, S. S. Novikov, S. N. Shvedova, E. V. Shepelev, G. A. Kalabin, Oleg V. Lebedev

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 20:2670-2673

1. A study was made of the behavior of trisacetylaminomethane in trifluoroacetic acid. 2. All of the trisacetylaminomethane is rapidly and completely hydrolyzed to a mixture of acetamide and formylacetamide when an equimolar amount of water is presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de1b16578547c76255d5480a9cacea05
https://doi.org/10.1007/bf00853651

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Condensation of gem-dinitroalkanes with aliphatic aldehydes and amines

Autor: S. S. Novikov, A. A. Fainzil'berg, S. N. Shvedova, V. I. Gulevskaya

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 9:1908-1910

Gem-dinitroalkanes condense readily with acetaldehyde, propionaldehyde, butyraldehyde, and amines. The use of these aldehydes instead of formaldehyde extends the field of application of the Mannich reaction with nitro compounds.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad19e474298641b0129985cff2bfd825
https://doi.org/10.1007/bf00907760

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Structure of some ?-aminomethylation products of nitramines

Autor: V. A. Shlyapochnikov, T. A. Arestova, Vitaly G. Avakyan, S. S. Novikov, S. N. Shvedova, N. O. Cherskaya

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 22:1255-1257

1. According to the data of the IR spectra, the condensation products of methylnitramine with formaldehyde and either morpholine or piperidine are N-derivatives of methylnitramine, in contrast to the reaction products of nitrourethan with formaldehyd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::233b947fa9461a3e7fbe73f0e054f69b
https://doi.org/10.1007/bf00928599

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