Application of 20198-19-0. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Aminoquinazolin-4(3H)-one, is researched, Molecular C8H7N3O, CAS is 20198-19-0, about Fluorescence characteristics of 3-aminoisocarbostyril derivatives (3). Fluorescence characteristics of isocarbostyrils and related compounds. Author is Takadate, Akira; Yoshimura, Naonori; Goya, Shujiro; Matsumoto, Hitoshi.
The fluorescence spectra of I (R = H, H2N, PhNH; Z = NH, O) and II were studied with respect to their structures. The maximum depended on such partial structures as lactam, lactone, or guanidino moieties. All compounds except II (R = PhNH2) (III) exhibited high fluorescence in EtOH. III and 2-anilino-4-methoxyquinazoline showed significant increased fluorescence in less polar solvents such as C6H6 and cyclohexane.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis