SDS of cas: 673-22-3In 2020 ,《Visible-light-induced radical cascade cyclization of pyrazoles bearing a coumarin unit》 appeared in New Journal of Chemistry. The author of the article were Sharma, Amit Kumar; Jaiswal, Anjali; Mishra, Anu; Tiwari, Jyoti; Jaiswal, Deepali; Singh, Shailesh; Singh, Jaya; Singh, Jagdamba. The article conveys some information:
Herein, an efficient, eco-friendly, metal free, visible light catalyzed synthesis of coumarin based pyrazoles I (R1 = H, OH, OMe; R2 = H, Cl, Br, NO2; R3 = H, OMe; R4 = H, Br, F; R5 = H, F) under an open atm. involving a photoredox catalyst, which is an inexpensive organic dye have been described. The present strategy is the first example of visible light promoted, aerobic, oxidative cyclization of pyrazoles bearing a coumarin unit via the formation of C-C, C-O and C-N bonds to afford excellent yields of the products I in a simple one-pot operation under mild reaction conditions. The major advantages of the present methodol. include short reaction time, cost effectiveness, easy work-up, broad substrate scope and high atom economy. In the experiment, the researchers used 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3SDS of cas: 673-22-3)
2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is the main component of root bark essential oil of Periploca sepium Bunge. It is a potential tyrosinase inhibitor present in African medicinal plants. 2-Hydroxy-4-methoxybenzaldehyde was used in the synthesis of Schiff base ligand.SDS of cas: 673-22-3
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