Application of 2058-72-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 2058-72-2 name is 5-Bromo-1-methylindoline-2,3-dione, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
General procedure: A solution of isatins 1 (0.6 mmol), 3-methyl-4-nitro-5-isatylidenylisoxazoles 2 (0.4 mmol) and proline or thioproline (0.8 mmol) in the 10.0 mL of EtOH at reflux for 5 h. After completion of the reaction, as indicated by TLC, the reaction mixture was directly subjected to flash column chromatography on silica gel (petroleum ether/EtOAc = 5:1-3:1) to furnish the corresponding products 3.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 5-Bromo-1-methylindoline-2,3-dione, and friends who are interested can also refer to it.
Reference:
Article; Lin, Bing; Zhang, Wen-Hui; Wang, Dan-Dan; Gong, Yi; Wei, Qi-Di; Liu, Xiong-Li; Feng, Ting-Ting; Zhou, Ying; Yuan, Wei-Cheng; Tetrahedron; vol. 73; 34; (2017); p. 5176 – 5188;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem