With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.288-16-4,Isothiazole,as a common compound, the synthetic route is as follows.
Under nitrogen protection, compound 1 was added(20 g, 0.235 mol) was added to dry 100 ml of ether and stirred to dissolve,And then cooled to below 0 ,To this was added n-butyllithium (0.24 mol)During the dropping process, the temperature was kept below 0 C,After the dropwise addition, the incubation reaction was carried out until no compound 1 was added.To the reaction solution was added bromine (0.5 mol)During the dropping process, the temperature was kept below 0 C,After completion of the dropwise addition, the temperature was gradually raised to room temperature, and after stirring for half an hour, the reaction was quenched by adding thereto a hydrochloric acid solution (2N, 500 ml). (100ml * 2), dried over anhydrous sodium sulfate, filtered and concentrated to dryness. After drying, the aqueous phase was washed with diethyl ether (200ml * 3) and extracted.To give the yellow oily compound 2.
288-16-4, The synthetic route of 288-16-4 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Tianjin Jinyao Group Co., Ltd.; Li Jing; He Guangjie; Yang Xinyi; Wang Shuli; Chen Liying; Hu Xiaoyun; Sun Liang; (37 pag.)CN106890175; (2017); A;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com