Boroquinol complexes with fused extended aromatic backbones: synthesis and optical properties

Abstract Boron-based dyes are attractive synthetic targets due to their large variability of absorption and emission wavelengths. Through Pictet?Spengler cyclizations, followed by oxidation, π-extended boroquinols have been synthesized. During optimization of the reaction conditions, an unusual dear...

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Hauptverfasser: Elbert, Sven (VerfasserIn) , Wagner, Philippe (VerfasserIn) , Kanagasundaram, Thines (VerfasserIn) , Rominger, Frank (VerfasserIn) , Mastalerz, Michael (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: January 18, 2017
In: Chemistry - a European journal
Year: 2017, Jahrgang: 23, Heft: 4, Pages: 935-945
ISSN:1521-3765
DOI:10.1002/chem.201604421
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1002/chem.201604421
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/full/10.1002/chem.201604421
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Verfasserangaben:Sven M. Elbert, Philippe Wagner, Thines Kanagasundaram, Frank Rominger, Michael Mastalerz
Beschreibung
Zusammenfassung:Abstract Boron-based dyes are attractive synthetic targets due to their large variability of absorption and emission wavelengths. Through Pictet?Spengler cyclizations, followed by oxidation, π-extended boroquinols have been synthesized. During optimization of the reaction conditions, an unusual dearylation has been found and mechanistically investigated. For two of the synthesized boroquinols, mechanochromic effects with bathochromic shifts up to 50?nm were found upon grinding.
Beschreibung:First published: 14 November 2016
Gesehen am 26.11.2018
Beschreibung:Online Resource
ISSN:1521-3765
DOI:10.1002/chem.201604421