Abstract A fast, efficient, and clean “on water” synthesis of new Schiff bases and their conversion to spiro compounds under microwave irradiation, as well as in water, is reported. Indol-2, 3-diones were reacted separately with various heterocyclic and aromatic amines in water at room temperature to obtain corresponding Schiff bases in high purity and yield. These were then converted into corresponding spiro compounds using mercaptoacetic ...
![3-phenylspiro[1,3-thiazolidine-2,3'-1H-indole]-2',4-dione结构式](https://image.chemsrc.com/caspic/094/79962-56-4.png)
![3-(4-methoxyphenyl)spiro[1,3-thiazolidine-2,3'-1H-indole]-2',4-dione结构式](https://image.chemsrc.com/caspic/239/59618-77-8.png)
![5'-fluoro-3-phenylspiro[1,3-thiazolidine-2,3'-1H-indole]-2',4-dione结构式](https://image.chemsrc.com/caspic/335/89405-25-4.png)
