Results 101 to 110 of about 291 (140)
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Cycloaddition and Cyclization Chemistry of 2H-Azirines
2010Publisher Summary Azirines are regarded as one of the most simple of all heterocyclic systems. They are characterized, by the presence of two carbon atoms and one nitrogen atom, in a three-membered ring, containing a π-bond. Numerous members of the 2H-azirine ring systems are fully characterized.
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Alkylation et silylation de 2h-azirines
Tetrahedron Letters, 1985Resume Alkylation and silylation of 2H-azitines are reported. Methylation of lithiated azirines is always observed at the carbon atom. N- or C-silytated azirines can be obtained depending on the silyl reagents or substrates.
P.F. Belloir +4 more
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Nitrile Ylides and Nitrenes from 2H-Azirines
19822H-Azirines represent versatile substrates which can serve as useful precursors for the synthesis of other heterocyclic rings.1–7 An unusual feature of this three-membered heterocyclic ring is that it is susceptible to attack by both electrophilic and nucleophilic reagents.7 In addition, the 2π electrons present in the ring are known to participate in ...
Albert Padwa, Per H. J. Carlsen
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A Neber approach for the synthesis of spiro-fused 2H-azirine-pyrazolone
Organic & Biomolecular Chemistry, 2016A base-mediated Neber reaction of enaminopyrazolones with sulfonyl chlorides was developed and various spiro-fused 2H-azirine-pyrazolones were obtained in good yield.
Deng-Feng, Yue +5 more
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The Thermal Reactions of 2H-Azirines
HETEROCYCLES, 1977Hiroshi Taniguchi +2 more
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Reaction of 2H-azirines with nitrones
The Journal of Organic Chemistry, 1974Albert Padwa, Karen Crosby
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Kinetic Resolution of 2H-Azirines by Asymmetric Allylation Reactions
ACS Catalysis, 2021Li Chen
exaly
Recent advances in 2H-azirine chemistry
Tetrahedron, 2013Alexander F. Khlebnikov +1 more
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