Formation of water-soluble sulfonated azacalix[4]arenes from cyanuric chloride
β Scribed by Jonathan Clayden; Stephen J.M. Rowbottom; Michael G. Hutchings; Warren J. Ebenezer
- Book ID
- 104096547
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- French
- Weight
- 210 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Addition of cyanuric chloride 2 (2,4,6-trichlorotriazine) to 4,6-diaminobenzene-1,3-disulfonic acid 1 gives a bis-triazine 3 which may be cyclised with diaminoarenes to yield water-soluble azacalix[4]arenes 5a-d. Alternatively, double substitution of chloride from the bis-triazine 3 yields new bis-triazine derivatives which may likewise be cyclised to functionalised azacalixarenes bearing functionalised side chains.
π SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
p-Phenylcalix[4,5,6,8]arenes have been isolated from the base catalysed condensation of p-phenylphenol with formaldehyde in tetralin, and selectively converted to the corresponding sulfonated derivatives using sulfuric or chlorosulfonic acids.
Hydrosoluble Calix[4] arenes-bis-crown-6 2a, 3a and 3b have been synthesised in two steps via formylation and chlorosulfonylation of 1. Cs +-Ligand interactions were studied in aqueous media by UV-Visible analysis and showed a good affinity between receptor 2a and the caesium ion.