Name: 2-Aminoquinazolin-4(3H)-one. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Aminoquinazolin-4(3H)-one, is researched, Molecular C8H7N3O, CAS is 20198-19-0, about Derivatives of 4-quinazolone as heat stabilizers for poly(vinyl chloride) and vinyl chloride-vinyl acetate copolymers. Author is Kasymova, S. S.; Masharipov, S. M.; Tadzhieva, Kh. S.; Makhmudov, S. A.; Yun, L. M.; Shakhidoyatov, Kh. M..
The stabilizing effect of 4-quinazolone [491-36-1], 2-amino-4-quinazolone (I) [20198-19-0], 2-amino-3-methyl-4-quinazolone (II) [91810-61-6] and 2-amino-3-methyl-6-nitro-4-quinazolone [91810-62-7] on PVC [9002-86-2] and vinyl acetate-vinyl chloride copolymer [9003-22-9] was studied. The highest heat resistance of the polymers was obtained by stabilization with I, and to a lower degree, with II, whereas the other quinazolone derivatives had no stabilizing effect on the polymers. The effect of mixtures of II with com. stabilizers Ca stearate or Ba-Cd stearate on the heat resistance of PVC depended nonmonotonically on the component ratio, whereas the effect of mixtures of I and other quinazolone derivatives with com. stabilizers increased with increasing content of the former.
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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