Chameleonic reactivity of vicinal diazonium salt of acetylenyl-9,10- anthraquinones: Synthetic application toward two heterocyclic targets
The nature of products in the diazotization of 1-amino-2-acetylenyl-9,10- anthraquinones strongly depends on the nature of substituents at both the alkyne and at the anthraquinone core. Donor substitution (NHAr, OH) at the fourth position stabilizes the d