English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/108016
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

A theoretical and experimental study of the racemization process of hexaaza[5]helicenes

AuthorsAbarca, B.; Ballesteros, R.; Adam, Rosa; Ballesteros-Garrido, R.; Leroux, Frédérc R.; Colobert, François; Alkorta, Ibon ; Elguero, José
KeywordsDiazoimine–triazole equilibrium
Racemization barriers
Helical chirality
Issue Date2014
CitationTetrahedron 70: 8750-8757 (2014)
AbstractA dynamic 1H NMR study, together with DFT calculations, of bis-([1,2,3]triazolo)[1,5-a:5′,1′-k][1,10]phenanthroline 2 has allowed to identify the ring and open forms of a new example of ring/chain tautomerism, as well as their interconversion barriers (ring/ring and ring/open). The barrier of the exchange process between the chain forms and the ring form was found higher than the 'racemization' process in the closed form, so the ring opening does not contribute to the 'racemization'. The di-1,10-methyl and di-1,10-iodo derivatives have been prepared and their properties calculated.
Identifiersdoi: 10.1016/j.tet.2014.09.018
issn: 1464-5416
Appears in Collections:(IQM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.