Results 21 to 30 of about 2,815,679 (232)
Molecules, 2012 Coumarins are nowadays an important group of organic compounds from natural sources that are useful in a number of fields. Because they possess different pharmacological properties, finding the proper extraction conditions for their separation from plant
Krystyna Skalicka-Woźniak +1 more
doaj +1 more source
Chemistry, 2023 We hereby report a simple and efficient method for the preparation of 4-methylcoumarins series, including Coumarin 120 (7-amino-4-methylcoumarin) from phenols (or naphthols) and ethyl acetoacetate in the presence of 3 mol% InCl3.
Silvia J. Becerra-Anaya +2 more
doaj +1 more source
A New and Efficient Method for the Synthesis of 3,4-Disubstituted Pyrrolidine-2,5-diones
Molecules, 2012 A newly found reaction for the synthesis of 3,4-disubstituted 1-hydroxy-pyrrolidine-2,5-diones from 3-substituted coumarins and nitromethane has been elaborated. The reaction involved a simple and convenient experimental procedure.
Rositca D. Nikolova +2 more
doaj +1 more source
, 2019 A Pd(II)-catalyzed oxidative annulation reaction of 4-hydroxycoumarin and arylcarboxylic acid via double C–H bond activations has been accomplished for the synthesis of bis-coumarins.
Pranjal Gogoi (1608181) +5 more
core +1 more source
Molecules, 2018 A new method for faster and simple preparation of 3,3′,4,4′-tetrahydro-3,3′-disubstituted-4,4′-biscoumarins with participation of an organozinc reagent is reported.
Ana I. Koleva +2 more
doaj +1 more source
The Age of Coumarins in Plant-Microbe Interactions [PDF]
, 2019 Coumarins are a family of plant-derived secondary metabolites that are produced via the phenylpropanoid pathway. In the past decade, coumarins have emerged as iron-mobilizing compounds that are secreted by plant roots and aid in iron uptake from iron ...
Stringlis, I. +4 more
core +2 more sources
A Study on Hydrogen Peroxide Scavenging Activity and Ferric Reducing Ability of Simple Coumarins
, 2018 Coumarin compounds are δ-lactones where α-pyrone ring is fused with benzene ring. Coumarins are widely distributed in the plant kingdom as well as they are very important in synthetic organic chemistry.
Sithambaresan, Maheswaran +2 more
core +1 more source
Química Nova, 2002 Coumarins are special metabolites well distributed in the Angiospermae, either in Monocotyledoneae or Dicotyledoneae. Simple coumarins, the most widespread type, is found in all coumarin-producing families, such as: Apiaceae, Rutaceae, Asteraceae ...
Claudia Valeria Campos Ribeiro +1 more
doaj +1 more source
A Review of Coumarins and Coumarin-Related Compounds for Their Potential Antidiabetic Effect
Clinical Medicine Insights: Endocrinology and Diabetes, 2021 Background and aims: Worldwide, type 2 diabetes mellitus accounts for a considerable burden of disease, with an estimated global cost of >800 billion USD annually.
Sara Ranđelović, Robbert Bipat
doaj +1 more source
Coumarins effectively inhibit bacterial α-carbonic anhydrases
Journal of Enzyme Inhibition and Medicinal Chemistry, 2022 Coumarins are known to act as prodrug inhibitors of mammalian α-carbonic anhydrases (CAs, EC 4.2.1.1) but they were not yet investigated for the inhibition of bacterial α-CAs.
Simone Giovannuzzi +5 more
doaj +1 more source