3-Chlorobenzo[d]isothiazole, cas is 7716-66-7, it is a common heterocyclic compound, the isothiazole compound, its synthesis route is as follows.,7716-66-7
An eggplant type flask was charged with 3-chloro(1,2-benzisothiazole) (14 g, 200 mmol) and piperazine anhydride (6.8 g, 40 mmol) and heated at 125 ¡ã C. for 24 hours. After completion of the reaction, 52 ml of ice- In addition, quench, add 3.2 g of 50percent NaOH solution, stir for 5 min, extract with CH 2 Cl 2 50 ml * 3, wash the organic layer with 50 ml each of ice water * 2, 50 ml * 2 of saturated brine * 2 and anhydrous MgSO4 To give 4- (1,2-benzisothiazol-3-yl)piperazine.
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Reference£º
Patent; JIANGSU HENGYI PHARMACEUTICAL COMPANY LIMITED; SHANGHAI INSTITUTE OF PHARMACEUTICAL INDUSTRY; Li, JIANQI; PENG, SHAOPING; CAI, WANGPING; GAO, KAI; (39 pag.)JP5714152; (2015); B2;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com