Synthesis and characterization of new calixarenes from bisphenol A
SCIE
SCOPUS
- Title
- Synthesis and characterization of new calixarenes from bisphenol A
- Authors
- Ahn, KH; Kim, SG; U, JS
- Date Issued
- 2000-08-20
- Publisher
- KOREAN CHEMICAL SOC
- Abstract
- The synthesis of bisphenol A-derived calixarenes has been studied by changing the protecting group of the phenol moiety and reaction conditions. Depending on the protecting groups, the corresponding calix[6,7,8]arenes are obtained in different ratios. For example, when mono-p-tert-butyldimethylsilyl-protected bisphenol A is treated with paraformaldehyde and a catalytic amount of aqueous KOH in refluxing p-xylene with a Dean-Stark water collector for 36 h, the corresponding calix[8]arene, calix[7]arene, and calix[6]arene are produced and separated in the ratio of about 3 : 2 : 1 and with overall 63% yield. The calixarenes are characterized by NMR spectroscopy and mass analysis. The X-ray crystal structure of the calix[8]arene shows a pleated loop conformation, stabilized by intramolecular hydrogen bonding between the inner phenolic hydroxy groups.
- Keywords
- CATION-PI INTERACTIONS; BINDING
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19866
- ISSN
- 0253-2964
- Article Type
- Article
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 21, no. 8, page. 813 - 816, 2000-08-20
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.