Category: 288-16-4

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.

To a solution of isothiazole (5.0 g, 58.82 mmol) in AcOH (37 mL) was added Br2 (12.5 g, 78.12 mmol) dropwise at 95 oC over 20 min and the mixture was stirred for 6 h at 95 oC, then cooled to RT, and poured into ice water (100 mL). The resulting mixture was extracted with Et2O (200 mL x 2). The organic phases were washed with 6N NaOH to pH at 7~8, dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated in vacuo, and the resulting residue was purified by distillation to afford 4-bromoisothiazole as a white solid (1.5 g, 15%)., 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; LYSOSOMAL THERAPEUTICS INC.; SKERLJ, Renato, T.; BOURQUE, Elyse Marie Josee; LANSBURY, Peter, T.; GREENLEE, William, J.; GOOD, Andrew, C.; (309 pag.)WO2017/176961; (2017); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

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.

In a pressure-resistant Schlenk tube, copper fluoride (0.05 mmol) was charged,The system was evacuated and replaced with argon three times,Under gas protection,The isothiazole (. 5 mmol) was added sequentially with a micro-injector,Tert-butylperoxybenzoyl (2 mmol),And chlorobenzene (2 ml),The system was then sealed and heated at 130 C in an oil bath for 24 hours,After completion of the reaction, the solvent was distilled off under reduced pressure,The product N-methylisothiazolin-2-one (46 mg) was obtained by a simple column chromatography (eluent using a mixed solvent of petroleum ether (60 to 90 C) and ethyl acetate)The yield was 80%., 288-16-4

288-16-4 Isothiazole 67515, aisothiazole compound, is more and more widely used in various fields.

Reference£º
Patent; SUZHOU BOFEITE NEW MATERIALS TECHNOLOGY CO., LTD; Mao, jincheng; Wang, Ping; (7 pag.)CN103965136; (2016); B;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

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.

Compound l (20 g, 0.235 mol) was added under stirring with nitrogen to dry 100 ml of ether and stirred to dissolve,Then cooled to below 0 C, to which n-butyllithium (0.24mo 1) was added dropwise,During the dropwise addition, the reaction was kept below 0 C and the incubation was completed until the compound 1 was added.To the reaction solution was added bromine (0.5 mol)Dropping the process to maintain the following 0 C, drop out after the completion of slowly rose to room temperature,After stirring for half an hour, the reaction was quenched by the addition of hydrochloric acid solution (2N, 500 ml).And the aqueous phase was extracted with ether (200 ml * 3) and discarded. The organic phase was combined and washed with sodium dithionite solution(100 ml * 2), dried over anhydrous sodium sulfate, filtered and concentrated to dryness to give compound 2 as a yellow oil.[0188] In this step, the ether can also be replaced with a solvent such as methyl ether, dimethyl ether, tetrahydrofuran, 1,4-dioxane and the like.

288-16-4, 288-16-4 Isothiazole 67515, aisothiazole compound, is more and more widely used in various fields.

Reference£º
Patent; Tianjin Jinyao Group Co., Ltd.; Li Jing; He Guangjie; Yang Xinyi; Wang Shuli; Chen Liying; Hu Xiaoyun; Sun Liang; (37 pag.)CN106890181; (2017); A;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

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.

Compound 1 (20 g, 0.235 mol) was added under stirring with nitrogen to dry 100 ml of ether and stirred to dissolve,And then cooled to 0 C or lower, to which n-butyllithium (0.24 mol)During the dropwise addition, the temperature was kept below 0 C, and the reaction was carried out until the compound 1 was added.To the reaction solution was added bromine (0.5 mol), and the mixture was kept at 0 C or less during the dropping,After completion of the dropwise addition, the temperature was gradually raised to room temperature, and after stirring for half an hour, the hydrochloric acid solution (2N, 500 ml)Quenching reaction.The aqueous phase was extracted with ether (200 ml * 3) and discarded. The organic phases were combined,Sodium dithionite solution (100ml * 2), dried over anhydrous sodium sulfate, filtered and concentrated to dryness,A yellow oily compound was prepared.In this step, the ether can also be replaced with a solvent such as methyl ether, dimethyl ether, tetrahydrofuran, 1,4-dioxane and the like.

288-16-4, As the paragraph descriping shows that 288-16-4 is playing an increasingly important role.

Reference£º
Patent; Tianjin Jinyao Group Co., Ltd.; Ge Yu; Li Yanfeng; (33 pag.)CN106892912; (2017); A;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

The isothiazole compound, cas is 288-16-4 name is Isothiazole, mainly used in chemical industry, its synthesis route is as follows.,288-16-4

To a solution of isothiazole (5.0 g, 58.82 mmol) in AcOH (37 mL) was added Br2 (12.5 g, 78.12 mmol) dropwise at 95 oC over 20 min and the mixture was stirred for 6 h at 95 oC, then cooled to RT, and poured into ice water (100 mL). The resulting mixture was extracted with Et2O (200 mL x 2). The organic phases were washed with 6N NaOH to pH at 7~8, dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated in vacuo, and the resulting residue was purified by distillation to afford 4-bromoisothiazole as a white solid (1.5 g, 15%).

As the rapid development of chemical substances, we look forward to future research findings about 288-16-4

Reference£º
Patent; LYSOSOMAL THERAPEUTICS INC.; SKERLJ, Renato, T.; BOURQUE, Elyse Marie Josee; LANSBURY, Peter, T.; GREENLEE, William, J.; GOOD, Andrew, C.; (309 pag.)WO2017/176961; (2017); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com