91527-64-9Relevant academic research and scientific papers
Synthesis and biological evaluation of a novel series of 1,3-dicoumarinyl-5-aryl-2-pyrazolines
Cacic, Milan,Molnar, Maja,Strelec, Ivica
, p. 1553 - 1566 (2011)
In the present paper novel 1,3,5-trisubstituted 2-pyrazolines (4a-q) were synthesized via condensation of different substituted 3-cinnamoyl-2-oxo-2H- chromenes (2a-q) with 2-(4-methyl-2-oxo-2H-chromen-7-yloxy)acetohydrazide (3). Chalcones were prepared vi
Synthesis and florescent properties of 5-aryl-3-(3-coumarinyl)-1-benzothiazolyl-2-pyrazolines
Liu, Manman,Liu, Qian,Zhang, Jian
, p. 301 - 306 (2016/08/20)
A series of novel 5-Aryl-3-(3-coumarinyl)-1-benzothiazolyl-2-pyrazolines have been synthesized by the reaction of 3-coumarinyl chalcones with 2-hydrazinobenzothiazole in hot ethanol. And the structures of these new compounds have been characterized by 1HNMR, MS and elemental analysis. The fluorescence spectra of these compounds were also measured. All the compounds showed up strong green light emissions (λem: 557-570nm). The results showed that the absorption maxima of the compound vary from 415 to 420nm depending on the group bonded to pyrazolines rings.
