2747-05-9Relevant articles and documents
A new method for annulation of the α-pyrone ring
Traven,Voevodina,Manaev,Podkhalyuzina
, p. 416 - 420 (2007)
New derivatives of coumarin, containing annulated α-pyrone rings, were obtained by reaction of the borate complexes of three isomeric acyl(hydroxy)coumarins with acid anhydrides. It was shown that the borate complex of 3-acetyl-4-hydroxy-2-pyrone also condenses with acetic anhydride to form a derivative containing a new annulated α-pyrone ring.
(E)-4 - methyl -7 - hydroxyl -8 - (3 - (ferrocenyl) acryloyl) coumarin as well as preparation method and application thereof
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, (2021/10/20)
The invention discloses (E)-4 - methyl -7 - hydroxyl -8 - (3 - (ferrocenyl) acryloyl) coumarin as well as a preparation method and application thereof, and (E)-4 - methyl -7 - hydroxyl -8 - (3 - (ferrocenyl) acryloyl) coumarin has the following structural formula. The present disclosure uses resorcinol as a raw material and condenses with Knoevenagal. 7 (7) Fries-methyl 8 hydroxyl E (-4 - 3 -8 - (ferrocenyl) acryloyl) coumarin is added into ABTBTBTS?, DPPHPHI and galvinvinvinvinylisopropyl -7 -) coumarin to exhibit excellent antioxidation activity, and the antioxidant performance is E superior -4 - to -7 - the -8 - corresponding 3 - ferrocenyl chalcone and coumarin-based chalcone, and has potential application values and is excellent in anti-oxidation activity and excellent in anti-oxidation performance.
Design, synthesis, and biological activity of Schiff bases bearing salicyl and 7-hydroxycoumarinyl moieties
Hejchman, El?bieta,Kruszewska, Hanna,Maciejewska, Dorota,Sowirka-Taciak, Barbara,Tomczyk, Magdalena,Sztokfisz-Ignasiak, Alicja,Jankowski, Jan,M?ynarczuk-Bia?y, Izabela
, p. 255 - 266 (2019/01/16)
Abstract: 18 (11 novel) Schiff bases, derivatives of salicylaldehyde, 2-hydroxyacetophenone, and 6-acetyl-, 8-acetyl-, and 8-formyl-7-hydroxy-4-methylcoumarin were synthesized and characterized by their spectral studies. 6-Acetyl-7-hydroxy-4-methylcoumarin was prepared by novel method under microwave assistance. These Schiff bases were evaluated for antibacterial activities against 12 bacterial and six fungi strains in vitro. N-(3,5-Dichloro-2-hydroxybenzylidene)-4-aminobenzenesulfonic acid sodium salt proved to be the most active against Staphylococcus aureus and MRSA strains (MIC 0.0194?μmol/cm3). The substitution pattern, two chlorine atoms in the salicylidene ring and the SO3Na group, is probably the most beneficial for the activity against Gram-(+) bacteria strains. All Schiff bases were evaluated for cancer efficacy against CFPAC-1 and HeLa cell cultures originating from human pancreas cancer or human cervical cancer. Schiff bases derived from salicylaldehyde are highly effective in pancreas and cervical cancer cells; however, they demonstrate also substantial toxicity towards NIH3T3 cells. Derivatives of coumarin contain three highly selective compounds: 7-hydroxy-8-[(4-methoxyphenylimino)methyl]-4-methyl-2H-chromen-2-one, N-[(7-hydroxy-4-methyl-2-oxo-2H-chromen-8-yl)methylene]-4-aminobenzenesulfonic acid sodium salt, and 7-hydroxy-8-[1-(4-hydroxyphenylimino)ethyl]-4-methyl-2H-chromen-2-one suggesting more promising potential of the second group of substances.