Results 71 to 80 of about 1,100 (192)

Barreira cinética intrínseca da reação de arilisotiocianatos p-substituídos com íon etóxido [PDF]

, 1986
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Curso de Pós-Graduação em Físico ...
Nunes, Mauricea
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Synthesis and complexing properties of N-(thio)phosphorylated bis(thio)ureas [PDF]

, 2000
New phosphorus-containing podands, N-(thio)phosphorylated bis(thio)ureas, were prepared by reactions of α,ω-diamines with (thio)phosphoryl iso(thio)cyanates.
Kashevarov S., Shcherbakova V., Verat A., Zabirov N., Brus'ko V., Cherkasov R., Sokolov F.   +6 more
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A Study of the Use of the Dicyanatodipyridine (II) Complex for the Determination of Cyanate

, 1950
Treadwell states in his text, Analytical Chemistry, Volume II, that the only method for examining cyanates consists in determining the amount of carbon and nitrogen present by combustion.
McClelland, Jean
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A study of carbohydrate stationary phases for the separation of enantiomers by high performance liquid chromatography [PDF]

The relationship between the structure and chromatographic properties of silica is discussed and the preparation and properties of chemically-bonded stationary phases based on silica are reviewed.
Crawford, Andrew John
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Etude du comportement de deux grades cyanates esters pour des applications structurales en matériaux composites en environnement tiède [PDF]

, 2019
Les matériaux composites constitués de résines cyanates esters et plus particulièrement les résines phénoliques triazines PT15 et PT30 ont été sélectionnés pour remplacer des pièces structurales métalliques aéronautiques sollicitées à des températures de
Bailly, Laurence
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Preparation of Rearranged Allylic Isocyanates from the Reaction of Allylic Alcohols with 1-Cyano-4-dimethylaminopyridinium Bromide

, 2018
A shorter and less costly alternative to Ichikawa’s [1,3]-transposition protocol for cyanates to isocyanates is described.Natural Sciences and Engineering Research Council of Canada (NSERC) (Idea to Innovation and Discovery Grants), Canada Research Chair
Baidilov, Daler, Hudlicky, Tomas, Rycek, Lukas, Makarova, Mariia   +3 more
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Synthesis and complexing properties of N-(thio)phosphorylated bis(thio)ureas

, 2020
New phosphorus-containing podands, N-(thio)phosphorylated bis(thio)ureas, were prepared by reactions of α,ω-diamines with (thio)phosphoryl iso(thio)cyanates.
Kashevarov S., Shcherbakova V., Verat A., Zabirov N., Brus'ko V., Cherkasov R., Sokolov F.   +6 more
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Formation of cumulenes, triple-bonded, and related compounds by flash vacuum thermolysis of five-membered heterocycles

, 2001
Flash vacuum thermolysis of a large variety of heterocyclic compounds is a useful means of production of ketenes, ketenimines, thioketenes, allenes, iminopropadienones, bis(imino)propadienes, iminopropadienethiones, carbodiimides, isothiocyanates ...
Marcelis, A.T.M., Elguero, J., Wentrup, C., Flammang, R., Yranzo, G.I., Willemen, H.M., Sudhölter, E.J.R., Vermonden, T.   +7 more
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Alkyl Cyanates. VII. Mass Spectra of Cyanates. [PDF]

Acta Chemica Scandinavica, 1966
Kai Arne Jensen, Arne Holm, Curt Wentrup, Jørgen Møller, Berndt Sjöberg, E. Bunnenberg, Carl Djerassi, Ruth Records   +7 more
openaire   +1 more source

Réarrangement sigmatropique-[3,3] de cyanates en isocyanates pour la synthèse stéréosélective d'acides aminés et de N-hétérocycles

Ce mémoire relate le développement d'une nouvelle méthodologie de synthèse stéréosélective directe de composés possédant un carbone quaternaire substitué par une fonction aminée.
Roy, Stéphanie
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