title: Synthesis of geminal bis- and tristriazoles: exploration of unconventional azide chemistry.
abstract: A range of geminal bis- and tristriazoles are presented. These rare and hardly studied compound classes were easily synthesized using ethyl 2,2-diazido-3-oxobutanoate as the common starting point. Firstly, CuAAC-reaction with an alkyne afforded the corresponding deacetylated bistriazoles. Upon further azidation yielding azidomethylenebistriazoles, a second CuAAC-functionalization then led to the creation of the geminal tristriazole compounds.
authors.affiliation: Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany. sfkirsch@uni-wuppertal.de.
authors.forename: Hellmuth
authors.initials: H
authors.lastname: Erhardt
authors.forename: Fabian
authors.initials: F
authors.lastname: Mohr
authors.forename: Stefan F
authors.initials: SF
authors.lastname: Kirsch