78 research outputs found
ChemInform Abstract: PHOTOREAKTIONEN 37. MITT. PHOTOINDUZIERTE CYCLOADDITIONEN VON ALIPHATISCHEN 2H-AZIRINEN
No full textChemInform Abstract: STEREOCHEMIE 56. MITT. ERMITTLUNG VICINALER ′ECLIPSING′-WECHSELWIRKUNGEN ZWISCHEN GRUPPEN EINES BICYCLO(2,2,2)OCTAN-SYST. (EPIMERISIERUNG VON 3-SUBSTITUIERTEN 2-METHYL-BICYCLO(2,2,2)OCTANEN)
No full textChemInform Abstract: Ring-Enlargement Reaction Yielding 1,2,5-Benzothiadiazonin-6-one 1,1- Dioxides.
No full textChemInform Abstract: A Ring Enlargement from Seven- to Ten-Membered-Ring Sulfonamide Derivatives.
No full textSynthesen und pharmakologische Eigenschaften von 2,2-Dialkyl-5-aryl-3-pyridylpyrrolidinen
No full text
A Ring-Enlargement Reaction Yielding 1,2,5-Benzothiadiazonin-6-one 1,1-Dioxides
Full text linkAt room temperature or under reflux in MeCN, 3-amino-2H-azirines 2 and 3,4-dihydro-2H-1,2-benzothiazin-3-one 1,1-dioxide (4) give 1,2,5-benzothiadiazonin-6-one 1.1-dioxides 5 in fair-to-good yield (Scheme 2). The structure of this novel type of heterocyclic compounds has been established by X-ray crystallography of 5a (Fig.). A ring expansion via a zwitterionic intermediate of type A' is proposed as the reaction mechanism of the formation of 5
Diastereomere mit drei benachbarten Phenylgruppen, II. Konfigurative Zuordnung der (±)-3-Amino-1.2.3-triphenyl-propanole-(1) und ihrer Derivate
No full text- …
