Path selection for conformational interconversions in [2]catenanes

Autor:	Diana B. Ha, Michael T. Frow, David E. Martyn, Ronald L. Halterman, Xingang Pan, Kathryn Haessig
Rok vydání:	2006
Předmět:	chemistry.chemical_compound Activation barrier Chemistry Stereochemistry Aryl Organic Chemistry Catenane Ether Physical and Theoretical Chemistry Biochemistry
Zdroj:	Organic letters. 8(10)
ISSN:	1523-7060
Popis:	[strucure: see text]The conformational interconversions of several [2]catenanes containing a dibenzo-34-crown-10 ether (BPP34C10) interlocked with rings containing two 4,4'-dipyridyls tethered by different aryl spacers have been studied. Blocking groups on the tethers enabled the two pathways for circumrotation of the BPP34C10 to be open or blocked. The activation barrier for migration along the open tethers varied from 11 to 13 kcal/mol. This study demonstrates an ability to select the pathway for conformational interconversions in [2]catenanes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4702986bb5d74d7bdbab77c80bc34e https://pubmed.ncbi.nlm.nih.gov/16671796 Zobrazit plný text záznamu