Results 131 to 140 of about 266,703 (209)

Synthesis of Novel Sugar Amino Acids by Curtius Rearrangement

European Journal of Organic Chemistry, 2003
AbstractSugar amino acids (SAAs) bearing an amine group on the anomeric position are a challenging class of SAAs to synthesize due to the inherent instability of glycosylamines. We developed a novel synthetic strategy towards both furanoid and pyranoid δ‐SAAs of this type, based on a Curtius rearrangement. The latter reaction, which is known to proceed
Renate M. van Well, Herman S. Overkleeft, Jacques H. van Boom, Andrew Coop, Jia Bei Wang, Hongyan Wang, Gijsbert A. van der Marel, Mark Overhand   +7 more
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Theoretical insights into photo-induced Curtius rearrangement of chlorodifluoroacetyl azide

Organic Chemistry Frontiers, 2017
The mechanism of photo-induced Curtius rearrangement is a two-step reaction with a nitrene intermediate.
Wei-Lu Ding, Quan-Song Li, Ze-Sheng Li, Xing-Liang Peng   +3 more
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The curtius rearrangement in aminimides (II)

Tetrahedron Letters, 1977
Herman P. Benecke
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Curtius-rearrangement of “rigid” azides

Tetrahedron Letters, 1964
Walter Lwowski, Richard DeMauriac, Thomas W. Mattingly, Ekkehard Scheiffele   +3 more
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DMAP Catalyzed One-Pot Curtius Rearrangement Using 1,1-Dimethyl-2,2,2-trichloroethoxycarbonyl Azide.

Organic Letters, 2023
We report our development of a controllable, base-free, one-pot Curtius rearrangement using 1,1-dimethyl-2,2,2-trichloroethoxycarbonyl azide (DMTN3) with 4-(dimethylamino)pyridine (DMAP) as a catalyst.
Ken-Ching Lin, Hongjian Lu
semanticscholar   +1 more source

Accessing Highly Oxidized Imidazolidinone Cores via a Curtius Rearrangement: Total Synthesis of Colensolide A.

Organic Letters, 2023
The hydroxytetrahydropyrrolo-imidazolidinone (HTHP-I) core present in colensolide A is a synthetically intriguing scaffold as a result of its high heteroatom/carbon ratio and perceived instability.
Evan Savelson, J. Tepe
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KINETICS AND MECHANISM OF THE CURTIUS REARRANGEMENT OF m-NITROBENZOYL AZIDE IN AQUEOUS SOLUTIONS OF SULFURIC ACID

Bulletin of the Saint Petersburg State Institute of Technology (Technical University), 2022
The kinetics and mechanism of the Curtius rearrangement of m-nitrobenzoyl azide in aqueous solutions of sulfuric acid of various concentrations has been studied.
Yuliya N. Pavlyukova, N. V. Kudryavtseva, V. Ostrovskii   +2 more
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Synthesis of New Dialkyl 2,2′-[Carbonylbis(azanediyl)]dibenzoates via Curtius Rearrangement

Synthesis, 2021
The 2-(alkylcarbonyl)benzoic acids obtained by esterification of phthalic anhydride are converted into azide derivatives: alkyl 2-[(azidocarbonyl)amino]benzoates and to ureas: dialkyl 2,2′-[carbonylbis(azanediyl)]dibenzoates.
M. Khouili, M. Pujol, H. Yassine, Jamila Bouali, Asmaa Oumessaoud, El-Mahdi Ourhzif, S. Hamri, A. Hafid   +7 more
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Some Applications of the Curtius Rearrangement

Journal of the Chemical Society, Perkin Transactions 1, 1983
Pairs of optically pure enantiomers of substituted 1,1 -diamines have been prepared from the azides of L-amino-acids via the Curtius rearrangement.This synthesis is based on the interchange of two groups attached to the asymmetrically substituted tetrahedral α-carbon atom of the parent amino acid.
Iphigenia Photaki, Panagiota Moutevelis-Minakakis   +1 more
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Synthesis of 2,2‐[60]Fullerenoalkylamines (IV) via the Curtius Rearrangement. [PDF]

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Kazuhiko Saigo, Yasuhiro Ishida, Tomoyuki Tada   +2 more
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