752210-78-9Relevant articles and documents
1,4,5,8-Tetraazafulvalenes - Synthesis of sulfur-containing derivatives and classification of the chromophor
Kühn, Christiane,Beckert,Grummt,K?pplinger,Birckner
, p. 406 - 413 (2004)
In order to obtain sulfur-containing tetraazafulvalenes the derivatives 1-3 were cross-coupled with different types of acetylenes via palladium-catalyzed reactions. Starting from the tetrabromoaryl derivative 3a, four bromine atoms could be replaced by 2-