Author/Authors :
Christian K?pplinger، نويسنده , , Tillmann Gebauer، نويسنده , , Rainer Beckert، نويسنده , , Dieter Weiss، نويسنده , , Wolfgang Günther، نويسنده , , Helmar G?rls، نويسنده , , Manfred Friedrich، نويسنده ,
Abstract :
3,4,5,6-Tetrahydro-2-aminopyridine reacts with bis-imidoylchlorides derived from oxalic acid to yield new dimeric tetraazafulvadienes. Ketene aminals could be isolated and characterized as key intermediates in a cascade reaction (cyclization–prototropism–oxidation–dimerization–deprotonation). The stable tetraazafulvadienes have been transformed with boron compounds into highly fluorescent tricyclic diazaborolidines.
Keywords :
Tetraazafulvadienes , Diazaborolidines , Tetraazafulvalenes , cascade reaction
