Synthesis of cyanine dyes derived from benzotellurazo-15-crown-5
β 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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β¦ 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 2βmethylβ5,6(15βcrownβ5)benzotellurazole (1) were prepared.
π SIMILAR VOLUMES
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