The important role of 7716-66-7

With the complex challenges of chemical substances, we look forward to future research findings about 3-Chlorobenzo[d]isothiazole

Name is 3-Chlorobenzo[d]isothiazole, as a common heterocyclic compound, it belongs to isothiazole compound, and cas is 7716-66-7, its synthesis route is as follows.,7716-66-7

A dry 2-neck 500 mL round-bottom flask (RBF) was charged with sodium ethanolate (46.2 mL, 124 mmol), diluted with 151 mL absolute EtOH, cooled in an ice bath and treated dropwise with diethyl malonate (17.98 mL, 118 mmol) under an atmosphere of nitrogen. After stirring for 20 minutes, the ice bath was removed and 3-chlorobenzo[d]isothiazole (20.0 g, 118 mmol) was added in one portion and stirred for 24 hours. The reaction solution was quenched with water, extracted with ether and treated with excess 4 M HCl/dioxane. A pinkish-white precipitate was filtered off, suspended in water, basified with Na2CO3, extracted with ether, washed with water and brine, dried over sodium sulfate, filtered and concentrated to yellow solids (?20 g) which were recrystallized from ethanol/water and dried in a vacuum oven at 60¡ãC for 3 hrs to give ethyl 3-aminobenzo[b]thiophene-2-carboxylate (19.9 g, 76percent yield).

With the complex challenges of chemical substances, we look forward to future research findings about 3-Chlorobenzo[d]isothiazole

Reference£º
Patent; Universal Display Corporation; Xia, Chuanjun; Joseph, Scott; EP2826781; (2015); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com