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Synthesis of cyanine dyes derived from benzotellurazo-15-crown-5

✍ Scribed by Weijun Ke; Xuehong Luo; Xiufang Liu; Hansheng Xu


Publisher
Journal of Heterocyclic Chemistry
Year
2000
Tongue
English
Weight
240 KB
Volume
37
Category
Article
ISSN
0022-152X

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✦ Synopsis


Abstract

A series of crown ether cyanine dyes including crown ether styryl cyanine dyes, crown ether merocyanine dyes and crown ether squarylium cyanine dyes (unsymmetric and symmetric) derived from key intermediate 2‐methyl‐5,6(15‐crown‐5)benzotellurazole (1) were prepared.


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Crown Ether-Bearing Dihydroazulens[1]: S
✍ Fischer, Christian ;Daub, JΓΆrg πŸ“‚ Article πŸ“… 1993 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 395 KB πŸ‘ 1 views

Photochromism / Photoresponsive crown ether Photosensitive crown ether 1 composed of 1,8a-dihydroazulene as a photodynamic unit and a benzo[l5]crown-5 ether subgroup has been synthesized from C-Tsubstituted cycloheptatriene 8, which has been obtained by nucleophilic addition of 4-acetylbenzo[l5]crow