Results 301 to 310 of about 2,975,483 (362)

Syntheses with nitrile oxides. 2. Reaction of aromatic nitrile oxides with bis(trimethylsilylcarbodiimide)

Bulletin of the Russian Academy of Sciences Division of Chemical Science, 1992
The reaction of aromatic nitrile oxides with bis(trimethylsilylcarbodiimide) gives 5-amino-3-aryl-1,2,4-oxadiazoles.
Lenor I. Khmel’nitskii, Oleg A. Rakitin, N. V. Obruchnikova, V. A. Ogurtsov   +3 more
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ChemInform Abstract: Cycloadditions of Nitrile Oxides to Itaconimides.

ChemInform, 1992
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. Hanus, Jan Svetlik, Tibor Liptaj
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Advances in nitrile oxides chemistry

Experientia, 1970
Dopo una breve introduzione storica, viene dato un quadro delle attuali conoscenze sulla chimica degli ossidi di nitrili con particolare riguardo ai suoi piu recenti sviluppi. L'applicazione di metodi gia noti e l'introduzione di nuovi metodi di preparazione hanno portato alla cinquantina il numero dei nitrilossidi isolati, oltre a quelli numerosi ...
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Activation of nitriles by hydrogen bonding in cycloadditions with nitrile oxides

Journal of Heterocyclic Chemistry, 1984
AbstractThe dipolarophilic activity of aromatic nitriles in cycloaddition with benzonitrile oxides is remarkably enhanced by ortho‐acylamino substituents. The activation depends upon the solvent and can be ascribed to a hydrogen bond which assists cycloaddition.
Antonino Corsaro, Ugo Chiacchio, Giovanni Purrello, Pierluigi Caramella   +3 more
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Fragmentation of nitrile oxides with triethylamine

Tetrahedron Letters, 1983
Abstract The formation of 1,2,4-oxadiazoles is frequently observed as a side reaction in cycl o additions with nitrile oxides generated in situ and follows from a fragmentation induced by Et3N. This latter is oxidized to N,N-diethylvinylamine, which is trapped as a cycloadduct.
A. Compagnini, F.Marinone Albini, P. Caramella, Antonino Corsaro   +3 more
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The addition of nitrile oxides to C60

Tetrahedron, 1996
Abstract The 1,3-dipolar cycloaddition of nitrile oxides to C60 is described. These reactions result in the formation of fullerene-fused isoxazoline heterocycles bearing a series of different substituents in 3-position. The preparation and spectroscopic characterization of these compounds are reported, as well as some investigations of the reactivity
Mark S. Meier, Magdalena Poplawska
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Nitrile Oxide Cycloadditions to Olefinated Sugars.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Pedro A. Colinas, Albrecht Lieberknecht, Albrecht Lieberknecht, Rodolfo D. Bravo, Volker Jäger   +4 more
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Syntheses based on nitrile oxides

Russian Chemical Bulletin, 1993
Interaction of aromatic nitrile oxides with bis-trimethylsilylthiodiimide results in 2-amino-4-aryl-1,2,3,5-oxathiadiazoles, the first representatives of a new class of heterocyclic compounds.
Natalia V. Obruchnikova, Vladimir A. Ogurtsov, Oleg A. Rakitin, Lenor I. Khmel’nitskii, Yu. A. Strelenko   +4 more
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Cycloadditions of nitrile oxides with benzofurazan N-oxides

Journal of the Chemical Society, Perkin Transactions 1, 1990
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
N. G. Argyropoulos, John K. Gallos
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The nitrile oxide–isocyanate rearrangement

J. Chem. Soc., Perkin Trans. 1, 1985
The thermal rearrangement of 2,4,6-trimethylbenzonitrile N-oxide to the corresponding isocyanate has been investigated by double isotopic (2H and 18O) labelling and kinetic experiments. Rearrangement proceeds with exchange of oxygen atoms, and this exchange occurs exclusively between nitrile oxide molecules.
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