Acosta, Paola published the artcileSynthesis and study of the electronic properties of pyrazolo[1,5-c]pyrrolo[1,2-a]quinazoline and pyrazolo[1,5-c]pyrido[1,2-a]quinazoline derivatives, Formula: C9H9N3, the main research area is pyrazolyl aniline chlorobutanone acetic acid catalyst tandem cyclization; pyrazolopyrroloquinazoline preparation electronic property; pyrazolopyridoquinazoline preparation electronic property; chlorohexanone pyrazolyl aniline acetic acid catalyst tandem cyclization.
Pyrazolo[1,5-c]pyrrolo[1,2-a]quinazoline and pyrazolo[1,5-c]pyrido[1,2-a]quinazoline derivatives were prepared by a double cyclization cascade type reaction between 2-(1H-pyrazol-5-yl)anilines and ω-chloroketones using acetic acid both as catalyst and solvent. The electronic and redox properties characterization of the new compounds offered a new alternative in luminescence applications due to the interesting (π-π*) displayed in their absorption spectra with remarkable values between 151.408-271.274 M-1 cm-1. Furthermore, the fluorescence quantum yields were in the range of 0.6-0.1. The redox properties were dependent of the unsaturation degree of their fused heterocyclic rings, as well as, the substituents at 6- and 11a-positions ruled out the absorption, emission and redox behavior of these compounds
Monatshefte fuer Chemie published new progress about Absorption spectra. 111562-32-4 belongs to class pyrazoles-derivatives, name is 2-(1H-Pyrazol-3-yl)aniline, and the molecular formula is C9H9N3, Formula: C9H9N3.
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics