64191-25-9Relevant academic research and scientific papers
A new approach for the synthesis of biologically active chromene compounds using a photo catalyst TiO2-Ag
Chhetri, Bhusan,Kharmawlong, George Kupar,Kumar, John Elisa,Nongkhlaw, Rishanlang,Nongrum, Ridaphun,Yadav, Arun Kumar
, (2021/12/30)
A green and efficient method for the synthesis of chromene derivatives using TiO2 doped Ag as a photocatalyst under visible light irradiation at room temperature is reported. The advantages of our method are clean reaction condition, easy workup procedure, use of eco-friendly solvent, and recyclable catalyst and most importantly higher yield of the product. The photocatalyst was found to be highly efficient for the synthesis of chromene derivatives within a short reaction time. The photocatalyst was prepared and characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS), and powder XRD technique and thermogravimetric analysis (TGA). In addition, the in-vitro study of helminths against S. obvelata were investigated and it was found that chromene derivatives were active against S. obvelata and showed no sign of acute toxicity in mice.
Pseudo Multicomponent Reaction: Synthesis of Fused Pyrano Biscoumarin Analogs from 1,2-diols
Jagadishbabu, Narasashetty,Shivashankar, Kalegowda
, p. 1543 - 1549 (2017/03/27)
A simple and efficient method has been developed for the synthesis of fused pyrano biscoumarins using lead tetraacetate as an oxidizing agent by the condensation of one equivalent of 1,2-diols and four equivalent of 4-hydroxy coumarin in acetonitrile as solvent at 80°C with good to excellent yields.
Reaction of dimethyl sulfoxide-acetic anhydride with 4-hydroxy-coumarin, its derivatives under microwave conditions
Qadir, Saima,Khan, Khaliquz Zaman,Jan, Arif
, p. 3019 - 3022 (2013/05/21)
4-Hydroxycoumarin and various biscoumarins synthesized under microwave conditions were treated with the DMSO-Ac2O reagent under the same conditions to yield different products. A comparative account of the reactions with conventional procedure, as reporte
Synthesis, structure, antimicrobial and antioxidant investigations of dicoumarol and related compounds
Hamdi, Naceur,Puerta, M. Carmen,Valerga, Pedro
, p. 2541 - 2548 (2008/12/23)
Different substituted 3,3′-arylidenebis-4-hydroxycoumarins (1-7) and tetrakis-4-hydroxycoumarin derivative 8 are the final products when 4-hydroxycoumarin and aromatic aldehydes containing different groups in ortho, meta or para positions condense in boil
