1977
DOI: 10.1002/cber.19771100207
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Beiträge zur Chemie von Carbazolderivaten mit dem Grundgerüst dimerer Calebassen‐Curare‐Alkaloide, I. Untersuchungen zur Struktur einer Modellverbindung für den Chromophor der Ultracurine

Abstract: Es wird gezeigt, daI3 eine aus 4a-Methyl-2,3,4,4a-tetrahydro-l-carbazolcarb~dehyd (5) dargestellte dimere Verbindung die Struktur 12 und nicht die friiher angenommene Struktur des offenen Aldehyds 7 bzw. 11 besitzt. Die Bildung des Racemats 12 auch beim Einsatz optisch aktiver Edukte sowie ein als Konkurrenzreaktion zur Dimerisierung ablaufender Halogen-Sauerstoff-Austausch zwischen dem vinylogen Imidoylchlorid 6 und der 1-Formyl-Verbindung 5 werden naher untersucht. Contributions to the Chemistry of Carbazol … Show more

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Cited by 3 publications
(2 citation statements)
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“…The 1 H and 13 C NMR spectra of the compound are in accord with the C 2 symmetry of the molecule. The formation of the diazocine 7 could be rationalized by analogy to the mechanism suggested by Oehl . TsCl converts the diformyl 6 to a tosylate ester, which is then attacked by the N atom of a deprotonated 6 .…”
Section: Methodsmentioning
confidence: 95%
See 1 more Smart Citation
“…The 1 H and 13 C NMR spectra of the compound are in accord with the C 2 symmetry of the molecule. The formation of the diazocine 7 could be rationalized by analogy to the mechanism suggested by Oehl . TsCl converts the diformyl 6 to a tosylate ester, which is then attacked by the N atom of a deprotonated 6 .…”
Section: Methodsmentioning
confidence: 95%
“…Researchers have reported a number of synthetic approaches to (bridged) diazocines, some of which have been serendipitous. Decades ago, Oehl found out that the reaction of chloromethylenecarbazole 1 , with carbazolecarbaldehyde, 2 , produces the O‐bridged diazocine 3 (Scheme ) . Nagarajan et al .…”
Section: Methodsmentioning
confidence: 99%