A sustainable strategy for the straightforward preparation of 2H-azirines and highly functionalized NH-aziridines from vinyl azides using a single solvent flow-batch approach [PDF]
Beilstein Journal of Organic Chemistry, 2021 The reported flow-batch approach enables the easy preparation of 2H-azirines and their stereoselective transformation into highly functionalized NH-aziridines, starting from vinyl azides and organolithium compounds.
Michael Andresini +2 more
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Reactivity of 2-halo-2H-azirines. Part 3: Dehalogenation of 2-halo-2H-azirine-2-carboxylates [PDF]
Tetrahedron, 2003 AbstractFor Abstract see ChemInform Abstract in Full Text.
Pinho e Melo, Teresa M. V. D. +2 more
openaire +4 more sources
Acridine–Isoxazole and Acridine–Azirine Hybrids: Synthesis, Photochemical Transformations in the UV/Visible Radiation Boundary Region, and Anticancer Activity [PDF]
MoleculesEasy-to-handle N-hydroxyacridinecarbimidoyl chloride hydrochlorides were synthesized as convenient nitrile oxide precursors in the preparation of 3-(acridin-9/2-yl)isoxazole derivatives via 1,3-dipolar cycloaddition with terminal alkynes, 1,1 ...
Ekaterina E. Galenko +3 more
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Enantiomerically Enriched Aziridine‐2‐carboxylates via Copper‐Catalyzed Reductive Kinetic Resolution of 2H‐Azirines [PDF]
Angewandte Chemie, Volume 137, Issue 26, June 24, 2025.Kinetic resolution by copper hydride catalyzed reduction of 2H‐azirines secured optically enriched N‐H aziridine‐2‐carboxylates with excellent diastereoselectivity (>20:1) and good enantioselectivity (up to 94% ee). DFT calculations and non‐covalent interaction analysis established the reaction pathway and revealed two key non‐covalent interactions ...
Yinuo Zheng +3 more
wiley +4 more sources
Azirinium ylides from α-diazoketones and 2H-azirines on the route to 2H-1,4-oxazines: three-membered ring opening vs 1,5-cyclization [PDF]
Beilstein Journal of Organic Chemistry, 2015 Strained azirinium ylides derived from 2H-azirines and α-diazoketones under Rh(II)-catalysis can undergo either irreversible ring opening across the N–C2 bond to 2-azabuta-1,3-dienes that further cyclize to 2H-1,4-oxazines or reversibly undergo a 1,5 ...
Nikolai V. Rostovskii +4 more
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CHIMIA, 1976 3,5-Bisdimethylamino-isoxazoles II are obtained easily from 1,3-dichloro-trimethinecyanine I and a water solution of hydroxylamine. Besides precedented photo-isomerization of 4-substituted isoxazoles IIb,c to azirines IIIb,c near quantitative thermal ...
G.J. de Voghel +3 more
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Isomerization of 5-(2H-Azirin-2-yl)oxazoles: An Atom-Economic Approach to 4H-Pyrrolo[2,3-d]oxazoles [PDF]
Molecules, 2021 An atom economical method for the preparation of variously substituted 4H-pyrrolo[2,3-d]oxazoles was developed on the basis of thermal isomerization of 5-(2H-azirin-2-yl)oxazoles.
Timur O. Zanakhov +4 more
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Synthesis of trifluoromethylated 2H-azirines through Togni reagent-mediated trifluoromethylation followed by PhIO-mediated azirination [PDF]
Beilstein Journal of Organic Chemistry, 2018 The reaction of enamine compounds with the Togni reagent in the presence of CuI afforded β-trifluoromethylated enamine intermediates, which were converted directly to biologically interesting trifluoromethylated 2H-azirines by an iodosobenzene (PhIO ...
Jiyun Sun +5 more
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3-Amino-2H-azirine, Moleküle mit vielfältigen Reaktionsmöglichkeiten [PDF]
CHIMIA, 1979 3-Amino-2H-azirines, cyclic three-membered amidines with an estimated ring strain of about 200 kJ/mole, undergo a variety of reactions. Thereby, each of the azirine bonds can be broken: Thermolysis leads to the rupture of the C(2),C(3)-bond, with strong
Heinz Heimgartner
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Cobalt catalyst with exclusive metal-centered chirality for asymmetric photocatalysis [PDF]
Nature CommunicationsFor decades, progress in chiral transition metal catalysis has been closely linked to the design of tailor-made chiral ligands. Recently, an alternative to this conventional paradigm has emerged in which the overall chirality of the catalysts arises ...
Su-Yang Yao +7 more
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