title: Benzoquinoline amines - Key intermediates for the synthesis of angular and linear dinaphthonaphthyridines.
abstract: A systematic study on the condensation reaction of 2,4-dichlorobenzo[h]quinoline and naphth-1-ylamine in the presence of CuI as catalyst to functionalised mono- and di-substituted (naphthalen-1-yl)benzo[h]quinoline amines was described. Subsequently these mono- and di-substituted amines on polyphosphoric acid catalysed cyclisation reaction with aromatic/heteroaromatic carboxylic acids led to the construction of angular and linear aromatic/heteroaromatic substituted dinaphthonaphthyridines in good yields.
authors.affiliation: Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India.
authors.forename: Kolandaivel
authors.initials: K
authors.lastname: Prabha
authors.affiliation: Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India.
authors.forename: K J
authors.initials: KJ
authors.lastname: Rajendra Prasad
keywords: 2,4-Dichlorobenzo[h]quinoline; CuI catalyst; Dinaphthonaphthyridines; Naphth-1-ylamine