Catalyst-free glycerol-mediated green synthesis of 5′-thioxospiro[indoline-3,3′-[1,2,4]triazolidin]-2-ones/spiro[indoline-3,3′-[1,2,4]triazolidine]-2,5′-diones
作者:Jyoti Tiwari、Mohammad Saquib、Swastika Singh、Fatima Tufail、Jaya Singh、Jagdamba Singh
DOI:10.1080/00397911.2017.1359844
日期:2017.11.2
The development of new catalyst-free green and efficient protocol to access 5-thioxospiro[indoline-3,3-[1,2,4]triazolidin]-2-ones/spiro[indoline-3,3-[1,2,4]triazolidine]-2,5-diones, potential privileged scaffolds for drug discovery, is disclosed. Key feature of this methodology is the dual use of glycerola recyclable, bioorganic compound, as a solvent cum promoter. Other highlights include use of inexpensive reagents, mild reaction conditions, operational simplicity, short reaction time, no need for chromatographic purification, and high yields.