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Translations for „five-membered ring“ in the English » German Dictionary (Go to German » English)

five-mem·ber·ed ˈring N CHEM

five-membered ring

Monolingual examples (not verified by PONS Editors)

English

In equilibrium solution, negligibly small amounts of the monomer and at least one five-membered ring dimer exist. en.wikipedia.org

Because of this, the nitrogen is basic, and via a five-membered ring transition state, it can abstract the hydrogen adjacent to the oxygen. en.wikipedia.org

In flexible structures, five-membered ring formation is preferred to six-membered ring formation. en.wikipedia.org

For example, the nitrogen atom of all bicyclic -lactams fused to five-membered rings is labelled position 4, as it is in penams, while in cephems, the nitrogen is position 5. en.wikipedia.org

In this work, a radical cascade cyclization that closed two five-membered rings and formed two new stereocenters, proceeding in good yield. en.wikipedia.org

The nitrogen then performs an intramoleculer attack on the carbonyl group to form the five-membered ring of compound 6. en.wikipedia.org

Steroids are characterized by four fused rings of carbon atoms (three six-membered rings and one five-membered ring). en.wikipedia.org

For optimal activity and selectivity of the coxibs, a 4-methylsulfonylphenyl attached to an unsaturated (usually) five-membered ring with a vicinal lipophilic group is required (rofecoxib). en.wikipedia.org

Five main penem subgroups -- thiopenems, oxypenems, aminopenems, alkylpenems, and arylpenems -- have been produced and are distinguished by the side chain (at position 2) of the unsaturated five-membered ring. en.wikipedia.org

The five-membered rings are slightly strained. en.wikipedia.org

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