Mierina, Inese published the artcileA green and effective route leading to antiradical agents with 3-arylmethyl 4-hydroxyquinolin-2(1H)-one moiety, Category: ethers-buliding-blocks, the publication is Tetrahedron Letters (2022), 153847, database is CAplus.
A new, green, convenient, cost- and atom effective route leading to 3-arylmethyl 4-hydroxyquinolin-2(1H)-ones from arylaldehydes and 1,3-dicarbonyl compounds in tri-Et ammonium formate in good to excellent yield was presented. The provided method foresaw the Knoevenagel condensation between a 4-hydroxyquinolin-2(1H)-one and an aromatic aldehyde followed by in-situ trapping of the arylidene intermediate with the hydride ion. All synthesized compounds were tested for their antiradical activity against DPPH and GO free radicals. The antiradical activity of the 3-arylmethyl 4-hydroxyquinolin-2(1H)-ones was comparable to or even higher than that of some com. widely used antioxidants like BHT, TBHQ, or α-tocopherol.
Tetrahedron Letters published new progress about 134-96-3. 134-96-3 belongs to ethers-buliding-blocks, auxiliary class Immunology/Inflammation,COX,Natural product, name is 4-Hydroxy-3,5-dimethoxybenzaldehyde, and the molecular formula is C9H10O4, Category: ethers-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem