Synthesis of tetraazatetracenes and -pentacenes: role of the substituents for their stability

Autor: Michaela Märken, Benjamin D. Lindner, Anthony L. Appleton, Frank Rominger, Uwe H. F. Bunz
Rok vydání: 2014
Předmět:
Zdroj: Pure and Applied Chemistry. 86:483-488
ISSN: 1365-3075
0033-4545
DOI: 10.1515/pac-2013-1211
Popis: We report the synthesis of a series of novel tetraazaacene derivatives and compare their stability with respect to size, oxidation potential and position of the TIPS-ethynyl groups. The latter has the most pronounced effects on the stability. In case of azatetracenes where TIPS-alkynes are either attached laterally or in the peri-positions, the former ones dimerized while the latter are stable. Attempts to expand this concept to the corresponding tetrakis-peri-substituted heptacenes led to the isolation of the dimerized butterfly product.
Databáze: OpenAIRE