Pereyaslova, D. G. published the artcileOrganic luminophors of the pyrazoline series – luminescent constituents of fluorescent pigments, Application of 4-(5-(4-Methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (1979), 45(6), 553-6, database is CAplus.
The addition of 3-(4-difluoromethylsulfonylphenyl)-1,5-diphenyl-Δ2-pyrazoline (I) [61102-38-3] to aminosulfonyltoluene-formaldehyde-melamine copolymer (II) [39277-28-6] gave a bright yellow fluorescent pigment with strong light absorption at 564 nm. When I and Rhodamine S [12627-64-4] were added to II the resulting orange-red pigment absorbed strongly at 609 nm. Similarly, a green fluorescent pigment was obtained by adding 1,4-bis[1,5-diphenyl-Δ2-3-pyrazolinyl]benzene [71203-34-4] and Direct Lightfast Turquoise K [50642-57-4] to II. Other shades of pigments were prepared by adding 1-(4-difluoromethylsulfonylphenyl)-3,5-diphenyl-Δ2-pyrazoline [61102-37-2], or pyrazoline sulfonate III, X = H, H2NSO2, or C17H35CONHSO2 (IV) to II. The synthesis of III (X = H) or III (X = H2NSO2) involved reacting sulfonated 4-methoxybenzalacetophenone with PhN:NH [100-63-0] or 4-H2NSO2C6H4N:NH [4392-54-5], resp. Refluxing III (X = H2NSO2) with stearic chloride [112-76-5] gave IV.
Ukrainskii Khimicheskii Zhurnal (Russian Edition) published new progress about 71203-35-5. 71203-35-5 belongs to pyrazoles-derivatives, auxiliary class GPCR/G Protein,Ras, name is 4-(5-(4-Methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide, and the molecular formula is C22H21N3O3S, Application of 4-(5-(4-Methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics