In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 31037-02-2 as follows. 31037-02-2
To a stirred solution of step 2 intermediate (4.8 g, 28.37 mmol) in ethanol (28 mL), aqueous solution of potassium hydroxide (2.0 M, 28 mL, 42.555 mmol) was added and the reaction mixture was refluxed for overnight. The reaction mixture was cooled to RT, concentrated under reduced pressure. The residue was stirred in 1.0 N citric acid (80 mL). The solid precipitated was filtered and dried to yield 3.59 g of the titled product. lU NMR (300 MHz DMSO- 6): delta 3.51 (s, 3H), 6.13 (br s, 2H), 7.38 (s, 1H), 11.74 (s, 1H).
According to the analysis of related databases, 31037-02-2, the application of this compound in the production field has become more and more popular.