title: Polycyclic heteroaromatics from reactions of acylbenzotriazoles with aryl isocyanates
abstract: N-Acylbenzotriazoles react with aryl isocyanates to form, depending on the type of acyl group, compounds based on five different classes of polycyclic heteroaromatics. Higher alkanoyl-, acetyl-, acetoacetyl-, aroyl-, and cinnamoylbenzotriazoles yield, respectively, derivatives of quinoline, pyrimidino[5,4-c]quinoline, benzo[b]-1,8-naphthyridine, phenanthridine, and indolo[2, 3-b]quinoline by incorporating 3, 3, 4, 2, and 2 molecules, respectively, of the isocyanate per acylbenzotriazole molecule.
authors.affiliation: Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
authors.initials: AR
authors.lastname: Katritzky
authors.initials: TB
authors.lastname: Huang
authors.initials: MV
authors.lastname: Voronkov
authors.initials: PJ
authors.lastname: Steel