Results 71 to 80 of about 1,240 (187)

Rearrangements of Acyl, Thioacyl, and Imidoyl (Thio)cyanates to Iso(thio)cyanates, Acyl Iso(thio)cyanates to (Thio)acyl Isocyanates, and Imidoyl Iso(thio)cyanates to (Thio)acyl Carbodiimides, RCX-YCN ⇌ RCX-NCY ⇌ RCY-NCX ⇌ RCY-XCN (X and Y = O, S, NR′)

, 2016
Two types of rearrangements have been investigated computationally at the B3LYP/6-311+G­(d,p) level. The activation barriers for rearrangement of acyl thiocyanates RCO–SCN to the corresponding isothiocyanates RCO–NCS are 30–31 kcal/mol in agreement with ...
Rainer Koch (269263), Curt Wentrup (1433587)   +1 more
core   +1 more source

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

, 2007
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
core   +1 more source

Study and applications of [3,3] sigmatropic rearrangement of allyl cyanates for the synthesis of molecules of biological interest.

, 2017
De nos jours, parmi toutes les transformations chimiques dont disposent les chimistes organiciens, le réarrangement sigmatropique [3,3] constitue un outil puissant afin de créer une liaison C-C ou encore C-hétéroatome. Le réarrangement d’allyl cyanate en
Henrion, Sylvain
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DIETARY REGIMENS POOR IN ANIMAL PROTEINS DECREASE CYANATES PRODUCTION THROUGH UREA REDUCTION IN CHRONIC KIDNEY DISEASE

, 2017
INTRODUCTION AND AIMS: Chronic Kidney Disease (CKD) is associated with early atherosclerosis, micro-inflammation and cardiovascular disease (CVD). Protein carbamylation resulting in urea-derived cyanate compounds, implied in many pathophysiological ...
Cosola, Carmela, Biagio Raffaele Di Iorio, Dal Piaz, Fabrizio, Lucia Di Micco, Emanuele De Simone, Di Micco, Lucia, Marzocco, Stefania, Loreto Gesualdo, Maria Teresa Rocchetti, De Simone, Emanuele, Fabrizio Dal Piaz, Gesualdo, Loreto, Carmela Cosola, Stefania Marzocco, Rocchetti, Maria Teresa, Di Iorio, Biagio Raffaele   +15 more
core   +1 more source

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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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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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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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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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

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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