Extracurricular laboratory: Synthetic route of C6H3ClF2O2S

According to the analysis of related databases, 13918-92-8, the application of this compound in the production field has become more and more popular.

Application of 13918-92-8, 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 13918-92-8 as follows.

General procedure: To a mixture of 3-amino-2-methyl-thieno[2,3-d]pyrimidin-4(6H)-one (1.0 mmol) (8 and 9) and benzenesulfonyl chloride (1.1 mmol) in DCM (10 mL) was added dropwise pyridine (1.2 mmol) in dichloromethane (2 mL). The resulting mixture was stirred at room temperature for 12 hrs. The mixture was concentrated under reduced pressure, and theresidue was treated with water (30 mL). The aqueous mixture was neutralized by the addition of aqueous 10% HCl solution and extracted with DCM (230 mL). The organicphase was washed with aqueous saturated NH4Cl solution and brine. The organic layer was separated and dried over anhydrous MgSO4, filtered, and concentrated under reducedpressure to give the crude product, which was purified by silica gel chromatography to produce the pure corresponding compounds.

According to the analysis of related databases, 13918-92-8, the application of this compound in the production field has become more and more popular.

Reference:
Article; Nie, Li Fei; Bozorov, Khurshed; Huang, Guozheng; Zhao, Jiangyu; Niu, Chao; Aisa, Haji Akber; Phosphorus, Sulfur and Silicon and the Related Elements; vol. 193; 10; (2018); p. 656 – 667;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics