title: 9,10-Dioxa-1,2-diaza-anthracene derivatives from tetrafluoropyridazine.
abstract: Reaction of tetrafluoropyridazine with catechol gives a tricyclic 9,10-dioxa-1,2-diaza-anthracene system by a sequential nucleophilic aromatic substitution ring annelation process, further extending the use of perfluoroheteroaromatic derivatives for the synthesis of unusual polyfunctional heterocyclic architectures. The tricyclic scaffold reacts with amines and sodium ethoxide providing a short series of functional 9,10-dioxa-1,2-diaza-anthracene systems.
authors.affiliation: Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, United Kingdom.
authors.forename: Graham
authors.initials: G
authors.lastname: Pattison
authors.forename: Graham
authors.initials: G
authors.lastname: Sandford
authors.forename: Dmitrii S
authors.initials: DS
authors.lastname: Yufit
authors.forename: Judith A K
authors.initials: JA
authors.lastname: Howard
authors.forename: John A
authors.initials: JA
authors.lastname: Christopher
authors.forename: David D
authors.initials: DD
authors.lastname: Miller