Tag: M.W:100-200

24340-77-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 4-Bromoisothiazole, cas is 24340-77-0,the isothiazole compound, it is a common compound, a new synthetic route is introduced below.

l-<4-Meth l-pyridin-3-yl )-i?uda/olidin-2-one ( I- 14b: I SOiug. 0.847mmol) was reacted with 4-bromo~isothiazole ( 166tng, 1.01 nunol ). 1. 4-dioxane ( 15ml ), copper iodide ( l6.09mg. O.U847mmol). trans- 1 ,2-diamino cyciohcxane (29mg, 0.254mmol) and potassium phosphate <540mg. 2.541 mnu>? to afford the crude product. Purification by column chromatography on silica gel (2% McOH in CHCh) afforded ) 20mg of the product (54.54’J¡ã yield). 1H NMR (C DCh. 300 MI b): 6 8.82 (s, 111), 8.65-8.25 (m. 3H). 7.4-7.1 (m> H D.4.20-3.95 (in, 4H). 2.19 (s, 311)I CMS purit) : 97.95%, mi? 261.0 (M 1 1) HPl C: 96.08%

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 4-Bromoisothiazole, 24340-77-0

Reference£º
Patent; NOVARTIS AG; BOCK, Mark G.; GAUL, Christoph; GUMMADI, Venkateshwar Rao; SENGUPTA, Saumitra; WO2010/149755; (2010); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

936-16-3, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, cas is 936-16-3,the isothiazole compound, it is a common compound, a new synthetic route is introduced below.

General procedure: Potassium carbonate was dissolved in DMF, and 1,2-bezeneisothiazolin-1,1-dioxide (8) (1 equiv.) in dichloromethanewas added to the reaction solution, and stirred for overnight. Then,the reaction mixture was filtered through Celite, and washed with1 N HCl and saturated sodium hydrogen carbonate solution. Residualsolution was dried over magnesium sulfate, and concentratedin vacuo, and purified by column chromatography to afford the titlecompound.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, 936-16-3

Reference£º
Article in Press; Hong, Jin Ri; Choi, Young Jin; Keum, Gyochang; Nam, Ghilsoo; Bioorganic and Medicinal Chemistry; (2017);,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

It is a common heterocyclic compound, the isothiazole compound, Benzo[d]isothiazole-3(2H)-thione 1,1-dioxide, cas is 27148-03-4 its synthesis route is as follows.

a solution of thiosaccharinate (0.26 g, 1.33 mmol) in hot water (30 cm3) was added to a solution of cis-[PtCl2(NH3)2] (0.20 g, 0.667 mmol) in hot water (15 cm3). The mixture was reuxed for 2 h. The light-brown solid formed was ltered off washed several times with distilled water and dried in vacuo. Yield: 89% (0.39 g). Anal. Calcd. for C14H14N4O4PtS4: C, 26.88; H, 2.26; N,8.96. Found: C, 26.33; H, 2.09; N, 8.86%. IR (KBr) (nu, cm-1): 3471 m, 3413 m, 3286 m, 1627s,1440w, 1373s, 1315s, 1236 m, 1155 m, 1126s, 1008w, 817 s, 515 m. 1H NMR (d6-DMSO): 7.96-7.90 (m, 4H), 7.82-7.75 (m, 4H), 4.54 (s, 6 H). 13C{1H} NMR (d6-DMSO): 182.8, 137.6,133.7, 133.4, 133.1, 124.3, 120.7 ppm.

27148-03-4, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,27148-03-4 ,Benzo[d]isothiazole-3(2H)-thione 1,1-dioxide, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Al-Jibori, Subhi A.; Al-Jibori, Ghassan H.; Al-Hayaly, Lamaan J.; Wagner, Christoph; Schmidt, Harry; Timur, Suna; Barlas, F. Baris; Subasi, Elif; Ghosh, Shishir; Hogarth, Graeme; Journal of Inorganic Biochemistry; vol. 141; 1; (2014); p. 55 – 57;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

27148-03-4, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Benzo[d]isothiazole-3(2H)-thione 1,1-dioxide, cas is 27148-03-4,the isothiazole compound, it is a common compound, a new synthetic route is introduced below.

General procedure: For 6: A solution of thiosaccharin (tsacH) (0.06 g, 0.307 mmol) in chloroform (8 cm3) was added to a solution of [PtCl2(kappa2-dppm)] (0.10 g, 0.154 mmol) in chloroform (10 cm3). A few drops of triethylamine were added and the resulting mixture was heated under reflex for 1 h. This produced a yellow solution was filtered off and reduced to half volume. Methanol (2 cm3) was added and the mixture was set a side to evaporate slowly at room temperature. The yellow crystalline solid thus formed was filtered off and dried in a vacuum oven (0.12 g, 91%).

The chemical industry reduces the impact on the environment during synthesis,27148-03-4,Benzo[d]isothiazole-3(2H)-thione 1,1-dioxide,I believe this compound will play a more active role in future production and life.

Reference£º
Article; Al-Jibori, Subhi A.; Al-Jibori, Mohamed H.S.; Hogarth, Graeme; Inorganica Chimica Acta; vol. 398; (2013); p. 117 – 123;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

7716-66-7, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 3-Chlorobenzo[d]isothiazole, cas is 7716-66-7,the isothiazole compound, it is a common compound, a new synthetic route is introduced below.

Preparation 3 3-(1-Piperazinyl)-1,2-benzisothiazole * hydrochloride Anhydrous piperazine (49.4g, 0.57 mol) and t-butanol (10 mL) were added to a dry, 300 mL round bottom flask equipped with a mechanical stirrer, thermometer, condenser topped with a nitrogen inlet, and pressure-equalizing dropping tunnel. After the flask was purged with nitrogen, it was heated to 100¡ãC in an oil bath. A solution of 3-chloro-1,2-benzisothiazole (19.45g, 0.11 mol) in t-butanol (10 mL) was added to the addition tunnel, and then slowly added to the reaction flask over 20 minutes to moderate an exothermic reaction (112 – 118¡ãC). Once addition was complete the yellow solution was heated to reflux (121¡ãC) and then maintained at reflux for 24 hours. Thin-layer chromatography showed that the reaction was complete. The reaction mixture was cooled to 85¡ãC and 120 mL of water was added. The hazy solution was filtered and the filter cake rinsed with 60 mL of t-butanol/water (1:1) solution. The pH of the combined filtrate and wash was adjusted to 12.2 with 50percent aqueous caustic. The aqueous solution was extracted with toluene (200 mL), the layers were separated, and the aqueous layer was extracted with fresh toluene (100 mL). The combined toluene layers were washed with water (75 mL), and then the toluene solution was concentrated in vacuo at 48¡ãC to 90 mL. Isopropanol (210 mL) was added to the concentrate and then the pH was slowly adjusted to 3.8 with 7.6 mL of concentrated hydrochloric acid. The resulting slurry was cooled to 0¡ãC, granulated for 45 min, and then filtered. The filter cake was washed with cold isopropanol (50 mL) and then dried in vacuo at 40¡ãC to afford 23.59g (80percent yield) of 3-(1-piperazinyl)-1,2-benzisothiazole hydrochloride as an off white solid.

The chemical industry reduces the impact on the environment during synthesis,7716-66-7,3-Chlorobenzo[d]isothiazole,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; PFIZER INC.; EP790236; (1997); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

As a common heterocyclic compound, it belongs to isothiazole compound, name is 3-Bromoisothiazole, and cas is 55512-82-8, its synthesis route is as follows.

Intermediate I-1 (15 mg, 0.045 mmol) and 3-bromoisothiazole (10.98 mg, 0.067 mmol) were dissolved in DMF (446 muL). PdCl2(dppf)-CH2Cl2 (2.187 mg, 2.68 mumol) was added and the reaction mixture was degassed by bubbling with argon for 15 minutes. Sodium carbonate (2 M, 26.8 muL, 0.054 mmol) was added and the reaction mixture was degassed for 5 minutes, then sealed and heated to 90 ¡ãC in the microwave for 30 minutes. The reaction mixture was diluted with DMF, filtered, and purified by preparative HPLC (Method D, 35 to 80percent B in 10 minutes) to give Example 5 (5.0 mg, 0.017 mmol, 37.2percent): 1H NMR (500MHz, METHANOL-d4) delta 8.89 (d, J=4.7 Hz, 1H), 8.59 (s, 1H), 8.13 (d, J=1.9 Hz, 1H), 8.10 (d, J=4.7 Hz, 1H), 7.84-7.52 (m, 2H), 2.64 (s, 3H); LC^MS: Method H, RT = 1.08 min, MS (ESI) m/z: 293.9 (M+H)+; Analytical HPLC Method B: 97.4percent purity

55512-82-8, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,55512-82-8 ,3-Bromoisothiazole, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; RICHTER, Jeremy M.; ZHANG, Xiaojun; PRIESTLEY, Eldon Scott; (111 pag.)WO2018/13772; (2018); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

As a common heterocyclic compound, it belongs to isothiazole compound, name is 2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, and cas is 936-16-3, its synthesis route is as follows.

General procedure: Potassium carbonate was dissolved in DMF, and 1,2-bezeneisothiazolin-1,1-dioxide (8) (1 equiv.) in dichloromethanewas added to the reaction solution, and stirred for overnight. Then,the reaction mixture was filtered through Celite, and washed with1 N HCl and saturated sodium hydrogen carbonate solution. Residualsolution was dried over magnesium sulfate, and concentratedin vacuo, and purified by column chromatography to afford the titlecompound.

936-16-3, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,936-16-3 ,2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, other downstream synthetic routes, hurry up and to see

Reference£º
Article in Press; Hong, Jin Ri; Choi, Young Jin; Keum, Gyochang; Nam, Ghilsoo; Bioorganic and Medicinal Chemistry; (2017);,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

Name is Isothiazole-4-carboxylic acid, as a common heterocyclic compound, it belongs to isothiazole compound, and cas is 822-82-2, its synthesis route is as follows.

A mixture of l-[(5R)-5-oxido-4-(tetrahydropyran-4-ylamino)-6,7-dihydrothieno[3,2- d]pyrimidin-5-ium-2-yl]azetidin-3-ol (50 mg, 0.154 mmol), 4-isothiazolecarboxylic acid (29.9 mg, 0.231 mmol), DMAP (3.8 mg, 0.031 mmol) and EDAC (44.3 mg, 0.231 mmol) in DCM (2 mL) was shaken in a sealed vial at 50 C for 1 hour. Prep-HPLC purification (acidic) afforded the title compound as off-white solid. 1H NMR (Chloroform-d) delta: 9.36 (s, 1H), 8.94 (s, 1H), 6.37 (d, J = 7.3 Hz, 1H), 5.52 (tt, J = 6.6, 4.1 Hz, 1H), 4.58 (ddd, J = 10.7, 6.6, 1.4 Hz, 2H), 4.39 – 4.17 (m, 3H), 4.08 – 3.94 (m, 2H), 3.66 (dt, J = 17.2, 7.8 Hz, 1H), 3.54 – 3.45 (m, 2H), 3.40 (dt, J = 13.5, 8.1 Hz, 1H), 3.18 – 3.05 (m, 2H), 1.99 – 1.89 (m, 2H), 1.71 (dtd, J = 12.9, 11.5, 4.5 Hz, 1H), 1.62 (dtd, J = 13.0, 11.5, 4.6 Hz, 1H)HPLC-Retention time (XE Metode 7 CM) : 1.81 minutes. Detected “M + l”-mass: 436.10.

822-82-2, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,822-82-2 ,Isothiazole-4-carboxylic acid, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; LEO PHARMA A/S; LARSEN, Jens; (110 pag.)WO2019/57806; (2019); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

As a common heterocyclic compound, it belongs to isothiazole compound, name is 2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, and cas is 936-16-3, its synthesis route is as follows.

General procedure: Potassium carbonate was dissolved in DMF, and 1,2-bezeneisothiazolin-1,1-dioxide (8) (1 equiv.) in dichloromethanewas added to the reaction solution, and stirred for overnight. Then,the reaction mixture was filtered through Celite, and washed with1 N HCl and saturated sodium hydrogen carbonate solution. Residualsolution was dried over magnesium sulfate, and concentratedin vacuo, and purified by column chromatography to afford the titlecompound.

936-16-3, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,936-16-3 ,2,3-Dihydrobenzo[d]isothiazole 1,1-dioxide, other downstream synthetic routes, hurry up and to see

Reference£º
Article in Press; Hong, Jin Ri; Choi, Young Jin; Keum, Gyochang; Nam, Ghilsoo; Bioorganic and Medicinal Chemistry; (2017);,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com

4576-90-3, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Isothiazole-3-carboxylic acid, cas is 4576-90-3,the isothiazole compound, it is a common compound, a new synthetic route is introduced below.

To a stirred solution compound 40 (3 g, 23.25 mmol) in CH2Cl2 (60 mL) under inert atmosphere were added EDCI.HCl (4.9 g, 25.58 mmol), DMAP (2.8 g, 23.25 mmol), N- methylmorpholine (7.65 mL, 69.76 mmol) and N, O-dimethylhydroxylamine hydrochloride (2.72 g, 27.90 mmol) at 0 oC, followed by warming to room temperature and stirring for 16 h. The reaction was monitored by TLC. After completion of the reaction, the reaction mixture was diluted with ice-cold water and extracted with CH2Cl2. The combined organic extracts were dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to obtain the crude. The crude was purified through silica gel flash column chromatography using 40-45% EtOAc/ hexanes to afford compound 41 (2.5 g, 63%) as brown syrup. TLC: 40% EtOAc/ hexanes (Rf: 0.5); 1H NMR (400 MHz, DMSO-d6): delta 9.15 (d, J = 4.8 Hz, 1H), 7.63 (d, J = 4.4 Hz, 1H), 3.69 (s, 3H), 3.33 (s, 3H); LCMS Calculated for C6H7NOS: 141.02; Observed: 142.0 (M+1)+.LC-MS: 98.67%; 172.9 (M+1)+.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Isothiazole-3-carboxylic acid, 4576-90-3

Reference£º
Patent; ASSEMBLY BIOSCIENCES, INC.; TURNER, William, W., Jr.; LI, Leping; HAYDAR, Simon, Nicolas; BURES, Mark, G.; RAI, Roopa; FRANCIS, Samson; ARNOLD, Lee, Daniel; (0 pag.)WO2018/160878; (2018); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com