233-92-1Relevant academic research and scientific papers
Synthesis and characterization of some N-Mannich bases of [1,2,3]triazoloquinolines
Ferlin, Maria Grazia,Castagliuolo, Ignazio,Chiarelotto, Gianfranco
, p. 631 - 638 (2007/10/03)
Some novel N-Mannich bases of [1,2,3]-triazolo[4,5-f] and [4,5-h]quinolines were synthesized following the classical experimental procedure for Mannich base preparation: triazoloquinoline with formaldehyde and secondary amine. Tricyclic nuclei were obtained starting from two protected isomeric amino-quinolines, which were nitrated, reduced and diazotated. Two N-anilinomethyltriazoloquinolines were also synthesized via the N-hydroxymethyl intermediate.
PREPARATION AND SPECTRAL PROPERTIES OF IMIDAZO- AND TRIAZOLOQUINOLINES WITH ANGULAR RING FUSION
Milata, Viktor,Ilavsky, Dusan,Lesko, Jan
, p. 1068 - 1077 (2007/10/02)
The imidazo- and triazoloquinolines (Va, Vb) and imidazo- and triazoloquinolines (Xa, Xb) have been synthetized by the Gould-Jacobs reaction starting from the quinolinecarboxylic acids II and VII prepared by base catalyzed hydrolysis of the esters I and VI, resp.The decarboxylation of the acids II and VII gives the quinolones III and VIII, resp., which are aromatized to the corresponding chloroquinolines IV and IX.The latter compounds give the azoloquinolines V and X on catalytic reduction.The structure of the condensed heterocyclic compounds with angular ring fusion has been proved by 1H and 13C NMR, IR, UV, and mass spectra.
