99304-31-1Relevant articles and documents
Polyethylene glycol (PEG-400): A mild and efficient reaction medium for one-pot synthesis of 3-hydroxy-3-(pyridin-2-ylmethyl)indolin-2-ones
Raghu,Rajasekhar,Chandra Obula Reddy,Suresh Reddy,Subba Reddy
, p. 3503 - 3506 (2013/07/05)
3-(Pyridylmethyl)-3-hydroxy-2-oxindole derivatives were synthesized in high yields under mild, and catalyst-free conditions using polyethylene glycol (PEG-400) as a solvent. The use of low cost PEG-400 makes it simple, convenient, and environmentally beni
Microwave assisted catalyst-free synthesis of azaarene-substituted 3-hydroxy-2-oxindoles by the functionalization of sp3 C-H bond in methyl pyridine
Meshram,Nageswara Rao,Chandrasekhara Rao,Satish Kumar
experimental part, p. 3963 - 3966 (2012/08/14)
A highly efficient synthesis of azaarene-substituted 3-hydroxy-2-oxindoles in catalyst-free conditions is described by the reaction of 2-methyl pyridines with isatins under microwave irradiation in aqueous medium. Simple reaction conditions, high yields o
Chemistry of indoles carrying a basic function, Part 3. Synthesis of spiro[cyclopropane-1,3'[3H]indol]-2'(1'H)-ones with antihypoxic effects
Moldvai,Gacs-Baitz,Balazs,Incze,Szantay
, p. 541 - 549 (2007/10/03)
Hydroxyindolones (1-6, 15-16) were transformed into isatinylidenes (7,9-13, 17-19) by dehydration with 4-toluenesulfonic acid. The dimer-type compounds (14, 20) were also isolated in a few cases. The obtained isatinylidenes were transformed into 3-spiro-cyclopropane-oxindoles (21-32) with dimethyloxosulfonium methylide. Compound 22 shows protective effects against hypobaric hypoxia and triethyltin induced brain edema.