On March 31, 2007, Jagadhani, S. G.; Kale, S. B.; Chaudhari, C. S.; Sangle, M. D.; Randhavane, P. V.; Karale, B. K. published an article.SDS of cas: 36640-53-6 The title of the article was Knoevenagel reactions of 3-formyl chromones and 4-formyl pyrazoles with pyrazolone by conventional and non-conventional methods. And the article contained the following:
3-Formyl chromones when heated with 1,2-dihydro-1-phenyl-3-propylpyrazol-5-one (I) in presence of acetic acid afforded the compounds 4-(4-oxo-4H-chromon-3-yl)methylene-1-phenyl-3-propyl-1H-pyrazol-5-(4H)-ones. 4-Formyl pyrazoles on treatment with compound I in presence of acetic acid gave compounds (4)-1-phenyl-4-((1-phenyl-1H-pyrazol-4-yl)methylene)-3-propyl-1H-pyrazol-5-(4H)-ones. These compounds are synthesized by traditional, microwave, and ultrasonic irradiations. The experimental process involved the reaction of 3-(Naphthalen-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde(cas: 36640-53-6).SDS of cas: 36640-53-6
The Article related to formyl chromone condensation pyrazolone microwave ultrasonic irradiation, pyrazole formyl condensation pyrazolone microwave ultrasonic irradiation, chromonyl methylene pyrazolone preparation microwave ultrasonic irradiation, pyrazolyl methylene pyrazolone preparation and other aspects.SDS of cas: 36640-53-6
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics