1990
DOI: 10.1002/cber.19901231011
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Intramolekulare Cycloaddition von Nitronen

Abstract: Nitrones 9 and 10, formed by treatment of the corresponding aldehydes with N-substituted hydroxylamines, are converted into the cis fused bicyclic compounds 11 and 12, respectively. While this intramolecular cycloaddition as a rule occurs der Z-Konfiguration vorliegen, kann es aber auch zur Reaktion aus der E-Konfiguration kommen'), wobei sich die Anordnung von R2 relativ zu R3/R4 umkehren wurde. Grundsatzlich lassen sich durch 1,3-dipolare Cycloadditionen zwischen Nitronen und 1,Zdisubstituierten Alkenen I… Show more

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Cited by 16 publications
(1 citation statement)
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“…Cyanohydrins can be pre-bined in one molecule, intramolecular 1,3-dipolar cycloadpared in excellent enantiomeric purity by asymmetric ad-dition can occur and numerous examples of the application dition of hydrogen cyanide to aldehydes in a reaction cata-of this principle have been published [1a] [6] [7] . lyzed by the enzyme R-oxynitrilase (E.C.…”
Section: Introductionmentioning
confidence: 99%
“…Cyanohydrins can be pre-bined in one molecule, intramolecular 1,3-dipolar cycloadpared in excellent enantiomeric purity by asymmetric ad-dition can occur and numerous examples of the application dition of hydrogen cyanide to aldehydes in a reaction cata-of this principle have been published [1a] [6] [7] . lyzed by the enzyme R-oxynitrilase (E.C.…”
Section: Introductionmentioning
confidence: 99%