Synthesis and application of 2-styryl-6(7)-bromothiazolo[4,5-b]quinoxaline based fluorescent dye chromophores: Part 2

Rangnekar, D. W.; Sonawane, N. D.

doi:10.1016/s0143-7208(00)00006-1

Cited by 13 publications

(9 citation statements)

References 21 publications

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“…A novel and efficient synthesis of 2‐styryl‐6(7)‐bromothiazolo[4,5‐ b ]quinoxaline‐based fluorescent dyes ( 62 ) was carried out by Rangnekar and Sonawane [33]. This involved the condensation of 2‐alkyl‐6(7)‐bromothiazolo[4,5‐ b ]quinoxaline ( 60 ) with selected 4‐ N , N ‐dialkylamino‐substituted arylaldehydes and heteroaryl‐aldehydes ( 61 ) in the presence of piperidine or acid anhydride (Scheme 16).…”

Section: Styryl Dyesmentioning

confidence: 99%

Styryl dyes – synthesis and applications during the last 15 years

Deligeorgiev

Vasilev

Kaloyanova

et al. 2010

Coloration Technology

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One of the most widely used and important groups of functional dyes are the styryl dyes and a review of this functional dye class has not been published for more than 15 years. In this review article, we describe the new trends in the synthesis of a range of novel intermediates and styryl dyes and include the most interesting examples of their high‐tech applications. However, this review is not intended to be comprehensive because of the large number of styryl dye studies that have been carried out in this time. Styryl cyanine dyes are widely used in optical recording media in laser discs, as flexible dyes, laser dyes, as optical sensitisers and in various other fields, for example dye‐sensitised solar cells and dyes with non‐linear optical properties. Additionally, the most important applications for these dyes are in bio‐labelling and in medicinal analysis.

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Section: Styryl Dyesmentioning

confidence: 99%

Styryl dyes – synthesis and applications during the last 15 years

Deligeorgiev

Vasilev

Kaloyanova

et al. 2010

Coloration Technology

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“…The former can be explained by the discovery that polypyridyl ligands, which own low-lying LUMOs and contain more than one nucleophilic center, play an important role in the synthesis of metallo-organic compounds with various applications in material chemistry. Besides, the quinoxaline structure is widely recognized as an important component of a great number of natural compounds with applications in areas as diverse as antibacterial, antiviral, anticancer, antifungal, antihelmintic, insecticidal agents, [8] electron-withdrawing groups in p-conjugated polymer chemistry, [9] fluorescent dyes, [10,11] and optical-based sensors for anions in organic media. [12] While the vast majority of these materials are based on organic molecules there has been a growing interest in developing metal-containing compounds over the last few years.…”

Section: Introductionmentioning

confidence: 99%

Pentacarbonyl[2‐(2′‐pyridyl)quinoxaline‐κN⁴]tungsten: A Combined Study of Its Conformational and Electronic Structure Based on Experimental and DFT‐TDDFT Data

2006

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Keywords: Pentacarbonyl complexes / 2-(2-Pyridyl)quinoxaline / Tungsten / DFT calculations / TD-DFT calculations / Pi stacking Photolysis of W(CO) 6 in the presence of 2-(2Ј-pyridyl)quinoxaline (pq) results in the formation of W(CO) 4 (pq) via an intermediate product W(CO) 5 (N 4 -pq) (1). In 1 the pq ligand that has three nitrogen atoms -two pyridine and one quinoxaline type -is coordinated in a monodentate fashion. This is the first example, where the pq ligand is coordinated in a monodentate fashion and especially from a quinoxaline nitrogen atom (N 4 ). Complex 1 has been fully characterized and its crystal structure has unambiguously demonstrated that pq is preferably coordinated through N 4 rather than the N 1 and N 1Ј atoms, while its packing is governed by π-π interactions and hydrogen bonds. The almost perfect "face-to-face" alignment of the condensed quinoxaline rings is attributed

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“…Various heterocyclic chromophores based on quinoxaline nucleus have been studied in our laboratory. Fluorescent compounds based on 2‐methylthiazolo[4,5‐ b ]quinoxaline [5, 6], 2‐methyl‐(1,3)‐dithiolium[4,5‐ b ]quinoxaline [7] have been reported. In this contribution, we want to report synthesis and application of some new 1,4‐diethyl‐1,2,3,4‐tetrahydroquinoxaline derivatives with different electron donating abilities.…”

Section: Introductionmentioning

confidence: 99%

Lithiumgewinnung aus anspruchsvollen Lagerstätten: Zinnwaldit und magnesiumreiche Salzseen

Bertau

Voigt

Schneider

et al. 2016

Chemie Ingenieur Technik

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Lithium kommt gebunden in Silikatgesteinen und gelöst in Salzseen vor. Beide Rohstofftypen, deren Ressourcen den zu erwartenden Bedarf um ein Vielfaches übersteigen, werden für die Lithiumgewinnung genutzt. Eine Übersicht der bekannten Lagerstätten mit ihrer Geochemie und den gegenwärtig genutzten Verfahren der Lithiumgewinnung wird gegeben. Diese Verfahren lehnen sich noch eng an die historischen Erstgewinnungen von Lithiumcarbonat an. Neue Prozessansätze der Direktcarbonatisierung von Zinnwaldit, der Salzsäure‐ und Oxalsäurelaugung sowie ein neues Verfahren zur Lithiumcarbonatgewinnung aus magnesiumreichen Brines werden vorgestellt.

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Synthesis and application of 2-styryl-6(7)-bromothiazolo[4,5-b]quinoxaline based fluorescent dye chromophores: Part 2

Cited by 13 publications

References 21 publications

Styryl dyes – synthesis and applications during the last 15 years

Styryl dyes – synthesis and applications during the last 15 years

Pentacarbonyl[2‐(2′‐pyridyl)quinoxaline‐κN⁴]tungsten: A Combined Study of Its Conformational and Electronic Structure Based on Experimental and DFT‐TDDFT Data

Lithiumgewinnung aus anspruchsvollen Lagerstätten: Zinnwaldit und magnesiumreiche Salzseen

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Synthesis and application of 2-styryl-6(7)-bromothiazolo[4,5-b]quinoxaline based fluorescent dye chromophores: Part 2

Cited by 13 publications

References 21 publications

Styryl dyes – synthesis and applications during the last 15 years

Styryl dyes – synthesis and applications during the last 15 years

Pentacarbonyl[2‐(2′‐pyridyl)quinoxaline‐κN4]tungsten: A Combined Study of Its Conformational and Electronic Structure Based on Experimental and DFT‐TDDFT Data

Lithiumgewinnung aus anspruchsvollen Lagerstätten: Zinnwaldit und magnesiumreiche Salzseen

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Pentacarbonyl[2‐(2′‐pyridyl)quinoxaline‐κN⁴]tungsten: A Combined Study of Its Conformational and Electronic Structure Based on Experimental and DFT‐TDDFT Data