Synthesis of 2‐Styryl‐naptho[1,2‐d] thiazolen

Müller, Annerose; Kuhnert, B.; Sonntag, Carla; Wünsch, Karl‐Heinz

doi:10.1002/prac.19853270423

Cited by 6 publications

(2 citation statements)

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“…To the above dye ( Naphtho[1,2-d][1,2,3 [1,2-d] [1,2,3]triazol-2-yl)phenyl]sulfonyl}ethan-1-ol (5) Yield (7) To a suspension of 2-aminonaphthalene-1-sulfonic acid (1.37 g; 6 mmol) in H 2 O (10.0 mL), 5 M NaOH (1.2 mL) was added. The solution obtained was cooled to 0-5 °C, and the diazonium salt solution (2.2.1) was added portionwise, keeping the temperature below 5 °C and pH 8 by addition of 5 M NaOH.…”

Section: Oxidation With Copper Acetatementioning

confidence: 99%

“…Compounds containing the 1,2,3-triazole unit have attracted attention as intermediates for the synthesis of several products with industrial application, namely, fluorescent compounds used either as dyes [1] or as optical brighteners [2]. In particular, naphthotriazoles, have been used as fluorescent whiteners [3,4] and show a potential as fluorescent markers [5].…”

Section: Introductionmentioning

confidence: 99%

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Naphthotriazole derivatives: Synthesis and fluorescence properties

et al. 2010

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Eight fluorescent compounds containing a naphthotriazole moiety substituted at position 2 by a (vinylsulfonyl)aryl group or its precursors, containing hydroxyl or sulphonic groups or N-methylglycine, were prepared and characterized. The products were recovered in moderate yields after column chromatography or recrystallization and identified by proton and carbon nuclear magnetic resonance spectroscopy. Double resonance, heteronuclear multiple quantum coherence and heteronuclear multiple bond correlation experiments were carried out for complete assignment of proton and carbon signals. Absorption and emission spectra were obtained, in acetonitrile, for all the compounds and the fluorescence quantum yields determined. All compounds are promising fluorescent probes due to their high fluorescence quantum yields.

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Section: Oxidation With Copper Acetatementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Naphthotriazole derivatives: Synthesis and fluorescence properties

et al. 2010

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ChemInform Abstract: Synthese von 2‐Styryl‐naphtho[12‐d]thiazolen.

Mueller¹,

Kuhnert²,

Sonntag³

et al. 1985

Chemischer Informationsdienst

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Spektroskopische Untersuchungen an Naphtho[1,2-d]thiazolen. II. Bandenanalyse der Absorptions- und Fluoreszenzspektren von 2-Aryl-naphtho[1,2-d]thiazolen

1992

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Spectroscopic Investigations on Naphtho[1.2‐d]thiazoles. II. Deconvolution of Absorption and Fluorescence Spectra of 2‐Aryl‐naphtho[1.2‐d]thiazoles Fluorescence measurements were carried out of organic fluorescent compounds of the type of 2‐aryl‐naphtho[1.2‐d]thiazoles (1a–k) substituted in the aryl group by different electronic donor and acceptor substituents. 2‐Phenyl‐naphtho[1.2‐d]thiazole was used in the series of these compounds as the reference system for optical properties. A scheme of vibronic terms in ground and excited states resulting from the spectra of emission, ultraviolet absorption and excitation is given.

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Synthesis of 2‐Styryl‐naptho[1,2‐d] thiazolen

Cited by 6 publications

References 2 publications

Naphthotriazole derivatives: Synthesis and fluorescence properties

Naphthotriazole derivatives: Synthesis and fluorescence properties

ChemInform Abstract: Synthese von 2‐Styryl‐naphtho[12‐d]thiazolen.

Spektroskopische Untersuchungen an Naphtho[1,2-d]thiazolen. II. Bandenanalyse der Absorptions- und Fluoreszenzspektren von 2-Aryl-naphtho[1,2-d]thiazolen

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