1973
DOI: 10.1002/cber.19731060803
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Borchelate und Bormetallchelate, II. Über die Bildung von Fluorborchelaten

Abstract: Durch Vergleich der Reaktionsweisen ahnlicher und gezielt abgeanderter Chelatbildner bei Umsetzungen mit BF3 wird gezeigt, daR die gegenuber den Diphenylborchelaten erschwerte Bildung von Difluorhorchelaten nur dann eintritt, wenn Mesomericstabilisierung irn Chelatring mijglich ist und/odcr andere Faktoren die Bildung begunstigen. Aus den UV-Spektren kann man auf die relative Stabilitat der Chelatringe schlienen. Difluorborchelate wurden von folgenden Chelatbildnern dargestellt: 2-Hydroxyacetophenon (1)2,3), S… Show more

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Cited by 40 publications
(24 citation statements)
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“…[8] The core structure was first described in 1969 [9] and its emitting properties were already mentioned in 1973 by Hohaus and coworkers, who described it as ac ompound with blue fluorescence. [10] In 2011, Ziessel and co-workersr ediscovered the boranils and synthesized anumber of derivatives. [11] They obtained highly fluorescent complexes (F up to 90 %) and reported on post-functionalizationt hrough palladium-catalyzed cross-coupling reactions.…”
Section: Introductionmentioning
confidence: 99%
“…[8] The core structure was first described in 1969 [9] and its emitting properties were already mentioned in 1973 by Hohaus and coworkers, who described it as ac ompound with blue fluorescence. [10] In 2011, Ziessel and co-workersr ediscovered the boranils and synthesized anumber of derivatives. [11] They obtained highly fluorescent complexes (F up to 90 %) and reported on post-functionalizationt hrough palladium-catalyzed cross-coupling reactions.…”
Section: Introductionmentioning
confidence: 99%
“…[23,24] Complete characterization is included in the experimental section. The variable temperature 11 B NMR of E-3a,b and c in DMSO-d 6 showed no changes in the chemical shifts of the signals indicating that the N-B bond does not cleave up to 120 o C. In the high frequency region, the appearance of borates is evident and increases with temperature due to the hydrolysis.…”
Section: Methodsmentioning
confidence: 99%
“…Typische Mitglieder dieser Familie entstehen durch Koordination des Phenoxid‐Sauerstoffatoms sowie des Stickstoffatoms von entweder einem Benzimidazol‐ ( 50 ),107, 108 Benzoxazol‐ ( 51 )109113 oder Benzothiazolderivat ( 52 ) 114. 115 Eine größere Struktur weist das Phenanthroimidazolderivat 53 108 auf, und die Komplexe 54 ,116, 117 55 118, 119 und 56 120 sind monotope oder ditope Analoga von Pyridinphenol, die hauptsächlich für die Anwendung in elektrolumineszierenden Bauelementen untersucht wurden. Die Verbindungsfamilie 56 wurde durch eine Kaskadenreaktion aus dem Ethinylderivat synthetisiert 121.…”
Section: Lumineszierende π‐Konjugierte No‐bor(iii)‐ Komplexeunclassified