A new calix-crowned azacrown ether, C51H59NO11S, consisting of four phenyl rings in a 1,3-aIternate conformation was synthesized from the reaction of 25,27-bis(5-chloro-3oxapenty!oxy)calixcrown-5 and p-toluenesulfonamide in the presence of Cs2CO3. A crown-5 loop was attached on the two facing lower rims of the calixarene and the N-tosyl azacrown group was attached on the other set of lower rims of the calixarene backbone. This molecule seems to offer an inside cavity for the formation of a host-guest complex.
|Number of pages||3|
|Journal||Acta Crystallographica Section C: Crystal Structure Communications|
|Publication status||Published - 2000 Dec 1|
ASJC Scopus subject areas
- Condensed Matter Physics
- Structural Biology