133175-88-9Relevant academic research and scientific papers
Object-oriented synthetic approach toward angular and linear fused pyrazoloquinolines of biological importance with InCl3 catalyst
Arasakumar, Thangaraj,Mathusalini, Sadasivam,Lakshmi, Krishnasamy,Mohan, Palathurai Subramaniam,Ata, Athar,Lin, Chia-Her
supporting information, p. 232 - 241 (2016/03/09)
A simple and short approach for the synthesis of pyrazolo[3,4-b]quinoline (3a-3p) and pyrazolo[4,3-c]quinoline (6a-6 h) using various Lewis acid catalysts was developed. InCl3 was found to be more effective in providing greater yield of product
A facile synthesis of 4-aryl-1H-pyrazolo[3,4-b]quinolines
Chaczatrian,Chaczatrian,Danel,Tomasik
, p. 1141 - 1147 (2007/10/03)
A novel synthesis of 1H-pyrazolo[3,4-b]quinolines, luminophores for electroluminescent devices, was developed. Conventional heating (180-190°C in ethylene glycol) or microwave exposure of a three-component mixture of an aromatic aldehyde, 3-substituted 1-phenyl-4,5-dihydro-1H-pyrazol-5-one and aromatic amine produced 4-aryl-1H-pyrazolo[3,4-b]quinolines.
Synthesis of Pyrazoloquinolines from 4-Aroyl-5-chloropyrazoles
Hennig, L.,Mueller, T.,Grosche, M.
, p. 693 - 698 (2007/10/02)
The reaction of 4-aroyl-5-chloro-3-methyl-1-phenyl-pyrazoles 1 with an excess of 3- or 4-substituted and 3,4-disubstituted anilines 2 gives pyrazoloquinolines 4a-k.Information about the reaction mechanism was obtained by the isolation of the intermediate product 3e.In some cases it was possible to isolate subsequent products 4l-p.The reaction of 1a with 5-amino-3-methyl-1-phenyl-pyrazole (5) gives a bispyrazolopyridine derivative 6.
