Phthalimide-N-sulfonic acid as a recyclable organocatalyst for an efficient and eco-friendly synthesis of 2-(2-oxo-2H-chromen-3-yl)-4-aryl-indeno[1,2-b]pyridine-5-one derivatives

Add time:07/12/2019    Source:sciencedirect.com

A facile and environmentally benign synthesis of some 2-(2-oxo-2H-chromen-3-yl)-4-aryl-indeno[1,2-b]pyridine-5-one derivatives from the reaction of aromatic aldehydes, 3-acetylcoumarin, 1,3-indandione and ammonium acetate using phthalimide-N-sulfonic acid (PISA) as a catalyst is described. The present method has some important features such as mild reaction conditions, short reaction times, less catalyst dosage and high yields with the green aspects by avoiding toxic catalysts and solvents. Further, the catalyst can be reused for four times without any noticeable decrease in the catalytic activity.

We also recommend Trading Suppliers and Manufacturers of 2-[4-(3,4-DICHLOROPHENYL)-3,4-DIHYDRO-1(2H)-NAPHTHALENYLIDEN]MALONONITRILE (cas 866018-81-7). Pls Click Website Link as below: cas 866018-81-7 suppliers

Prev:Tautomerism of N-(3,4-dichlorophenyl)-1H-indazole-5-carboxamide – A new selective, highly potent and reversible MAO-B inhibitor
Next:Investigation of spectroscopic, reactive, transport and docking properties of 1-(3,4-dichlorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea (ANF-6): Combined experimental and computational study)