Quinoidal tetrazines: formation of a fascinating compound class.
A series of different N-heterocyclic carbenes (NHCs) were reacted with 3,6-bis(3',5'-dimethylpyrazolyl)-tetrazine in the presence of an inorganic carbonate to provide access to a hitherto unprecedented compound class. The formed tetrazine derivatives bearing the NHC in the 3-position and an oxygen in the 6-position show a quinoidal-like structure, according to physical examinations and X-ray crystallography.
Bostai
Beatrix
B
Institute of Chemistry, Eötvös LorAnd University, PAzmAny Péter s. 1/A, H-1117 Budapest, Hungary.
Novák
Zoltán
Z
Bényei
Attila C
AC
Kotschy
András
A