Category: thiazole

61296-22-8, 2-Amino-5-bromothiazole monohydrobromide is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a mixture of sodium bicarbonate (5.8 kg, 69.04 mol, 3.00 equiv) in water (30 L) and dichloromethane (20 L) was added 5-bromo-l,3-thiazol-2-amine hydrobromide (6 kg, 23.08 mol, 1.00 equiv) in batches. The resulting mixture was stirred at room temperature for 4 h and extracted with dichloromethane. The combined organic layers were dried over anhydrous sodium sulfate and concentrated under vacuum to afford 5-bromo-l,3-thiazol-2-amine as a gray solid (2.9 kg, 70%)., 61296-22-8

As the paragraph descriping shows that 61296-22-8 is playing an increasingly important role.

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; GENENTECH, INC.; YU, Jiang; WU, Guosheng; YUEN, Po-Wai; VILLEMURE, Elisia; SCHWARZ, Jacob; LY, Cuong; SELLERS, Benjamin; VOLGRAF, Matthew; WO2015/52226; (2015); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

63837-11-6, 5-Bromo-2-methylbenzothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

63837-11-6, N-Bromosuccinimide (4.45 g, 25 mmol, 1.4 equiv.) and subsequently alpha,alpha’~ azoisobutyronitrile (110 mg, 0.7 mmol, 0.04 equiv.) were added to a solution of 5- bromo-2-methyl-benzothiazole (4.07 g, 17.85 mmol, 1 equiv.) in CCI4 (110 ml). The reaction mixture was stirred at reflux for 24 hrs. After cooling, succinimide was removed by filtration and was rinsed with CCI4 (100 ml). The filtrate was evaporated to dryness under reduced pressure and the orange solid residue was purified by column chromatography on silica, eluted with CH2CI2/hexane (20%-70% gradient), to give the desired product as a white solid, 2.15 g (39% yield). Mp 116-117, HPLC-MS (method 1): m/z 308 [M+H]+, Rt = 4.84 min. The reaction gave also 1.40 g (20% yield) of the by-product 5-bromo-2-dibromomethyl-benzothiazole, as well as 0.89 g (22%) of un-reacted starting material.

As the paragraph descriping shows that 63837-11-6 is playing an increasingly important role.

Reference£º
Patent; PROLYSIS LTD; WO2007/107758; (2007); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

4175-77-3, 2,4-Dibromothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

he mixture of compound 433a (5 g, 20.5 mmol), cyclopropyl boronic acid (2.12 g, 24.7 mmol), K3P04 (13.1 g, 61.7 mmol), Xantphos (0.6 g, 1.04 mmol) and Pd(OAc)2 (0.23 g, 1.04 mmol) in THF (140 mL) was stirred at 80 ¡ãC under N2 for about 15 hours. The reaction was complete detected by TLC (Petroleum Ether/EtOAc = 30: 1) and LCMS. The mixture was extracted with EtOAc (100 mL), water (50 mL). The combined organics was dried over Na2S04, purified with silica gel (Petroleum Ether /EtOAc = 50: 1) to provide compound 433b as oil (3.48 g, yield: 83.3percent)

4175-77-3, As the paragraph descriping shows that 4175-77-3 is playing an increasingly important role.

Reference£º
Patent; MERCK SHARP & DOHME CORP.; YU, Wensheng; TONG, Ling; KOZLOWSKI, Joseph A.; SELYUTIN, Oleg; CHEN, Lei; KIM, Jae-Hun; SHA, Deyou; RIZVI, Razia; SHANKAR, Bandarpalle; HU, Bin; ZHONG, Bin; WAI, Dahai; HAO, Jinglai; WEI, Wei; JI, Tao; ZAN, Shuai; WO2014/110705; (2014); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.24295-03-2,2-Acetylthiazole,as a common compound, the synthetic route is as follows.

General procedure: To a solution of the appropriate ketone (A, 1 equiv) in chloroform, bromine (1 equiv) in chloroform was added dropwise at 0 C. The mixture was stirred at room temperature for 2 h and was washed with H2O (3 50 ml) and saturated Na2S2O3 solution (2 x 50 ml). The organic phase was dried over Na2SO4, filtered andthe solvent was removed in vacuum. The crude alpha-bromoketone (B) was recrystallized from petrolether.48

24295-03-2, The synthetic route of 24295-03-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Vogt, Dominik; Weber, Julia; Ihlefeld, Katja; Brueggerhoff, Astrid; Proschak, Ewgenij; Stark, Holger; Bioorganic and Medicinal Chemistry; vol. 22; 19; (2014); p. 5354 – 5367;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

67899-00-7, 2-Amino-4-methylthiazole-5-carboxylic acid is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,67899-00-7

To a suspension of 6 (500mg, 3.20mmol) in tetrahydrofuran (20mL) were added pyridine (1.30mL, 16.0mmol) and acetyl chloride (0.60ml, 7.90mmol) at 0C, and the reaction mixture was stirred for 21h at room temperature. After the volatiles of the mixture were removed in vacuo, water was poured into the residue, and the suspension was stirred for 1h. The resulting precipitate was collected by filtration, washed with water and dried in vacuo to yield 7 (585mg, 91%) as a colorless powder. 1H NMR (200MHz, DMSO-d6) delta 2.15 (s, 3H), 2.52 (s, 3H), 12.35 (br s, 1H); MS (ESI): m/z 201 [M+H]+, 223 [M+Na]+, 199 [M-H]-.

The synthetic route of 67899-00-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Oka, Yusuke; Yabuuchi, Tetsuya; Oi, Takahiro; Kuroda, Shoichi; Fujii, Yasuyuki; Ohtake, Hidenori; Inoue, Tomoyuki; Wakahara, Shunichi; Kimura, Kayo; Fujita, Kiyoko; Endo, Mayumi; Taguchi, Kyoko; Sekiguchi, Yoshinori; Bioorganic and Medicinal Chemistry; vol. 21; 24; (2013); p. 7578 – 7583;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

2786-51-8, 5-Chlorobenzo[d]thiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,2786-51-8

General procedure: A mixture of benzothiazole 1a (67.5 mg, 0.5 mmol), cyclohexane-1,3-dione 2b (112 mg, 1 mmol), KH2PO4 (136 mg, 1 mmol), DMSO (2 mL) and water (2 mL) were placed into a 15 mL flask under air. The reaction mixture was stirred in oil bath for 3 days at 80 C. The progress of the reaction was monitored by TLC. When the reaction was complete, it was neutralised with a saturated KHCO3 aqueous solution, and extracted with ethyl acetate (3 ¡Á10 mL). The extract was washed with water (3 ¡Á 5 mL) and dried over anhydrous Na2SO4. After drying, it was concentrated under reduced pressure to give the crude product, which was further purified by silica-gel column chromatography to afford 2,3-dihydro-10H-phenothiazin-4 (1H)-ones 3b (93.2 mg, yield: 86%).

As the paragraph descriping shows that 2786-51-8 is playing an increasingly important role.

Reference£º
Article; Suliman, Ayman Mohammed Yousif; Li, Yanjun; Zhang, Shaonan; Yuan, Yu; Journal of Chemical Research; vol. 39; 11; (2015); p. 657 – 660;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.109113-98-6,6-(Trifluoromethyl)imidazo[2,1-b]thiazole,as a common compound, the synthetic route is as follows.

At 00C POCl3 (17.1 mmol) is added dropwise to a solution of DMF (20.6 mmol) in chloroform (5.0 mL). A solution of 6-trifluoromethyl-imidazo[2,l-b]thiazole (3.17 mmol) in chloroform (15 mL) is added dropwise at 00C and the mixture is stirred for 3h at RT. After heating for 2.5d to reflux the mixture is poured into ice, extracted three times with DCM, dried over MgSO4 and concentrated under reduced pressure. DCM is added, the obtained precipitate is filtered off and the filtrate is concentrated in vacuo to give a crude product which is dissolved in tert.-butanol (19.5 mL). A solution of sodium chlorite (23.0 mmol) and sodium dihydrogen phosphate dihydrate (17.6 mmol) in water (19.5 mL) is added dropwise and the mixture is stirred for 90 min at RT. The solvents are partially removed in vacuo and the obtained precipitate is filtered off to give the desired product as a white solid. LC-MS: tR = 0.73 min; [M+H]+ = 237.2.

109113-98-6, 109113-98-6 6-(Trifluoromethyl)imidazo[2,1-b]thiazole 11084696, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; ACTELION PHARMACEUTICALS LTD; WO2009/16560; (2009); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

247037-82-7, Thiazole-2-carboximidamide hydrochloride is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a mixture of thiazole-2-carboximidamide hydrochloride (5.49 g, 33.6 mmol) and sodium bicarbonate (5.64 g, 67.1 mmol) in NMP (46 ml) at 120 C. was added a solution of the compound from Step 2-2a (8.80 g, 33.6 mmol) in NMP (20 ml). The mixture was heated at 120 C. under N2 for 2.5 h before being allowed to cool down and diluted with MTBE and water. The organic layer was washed with water (*1), brine (*1), dried over Na2SO4 (s), filtered and concentrated. The residue was purified by flash column chromatography (silica, hexanes/EtOAc) to afford the desired compound as yellow oil (5.10 g, 41%). ESI MS m/z=372.13 [M+H]+., 247037-82-7

As the paragraph descriping shows that 247037-82-7 is playing an increasingly important role.

Reference£º
Patent; ENANTA PHARMACEUTICALS, INC.; Qiu, Yao-Ling; Cao, Hui; Peng, Xiaowen; Li, Wei; Kass, Jorden; Gao, Xuri; Jin, Meizhong; Or, Yat Sun; (49 pag.)US2017/355701; (2017); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.133840-96-7,2-Chloro-6-(trifluoromethoxy)benzo[d]thiazole,as a common compound, the synthetic route is as follows.

General procedure: 2-Chloro-6-trifluoromethoxy-benzothiazole (1.27 g, 5 mmol)was dissolved in 10 mL ethylamine aqueous solution. Theresultant mixture was stirred at room temperature overnight.The solvent was removed under reduced pressure. Theresidue was dissolved in CH2Cl2 and washed three timeswith water, dried over anhydrous Na2SO4, filtered and thesolvent completely removed. The crude material was purifiedby column chromatography over silica used dichloromethaneas eluent to give compound 4a as a whiteamorphous powder (1.11 g, 84.7%). Compounds 4b-4iwere also prepared by the same procedure from compound3 with n-butylamine, diaethylamin, cyclohexylamine, pyrrolidine,piperidine, morpholine, and 4-methylpiperidine,respectively. Spectroscopic data of N-alkylated derivativesof riluzole were given as follow., 133840-96-7

133840-96-7 2-Chloro-6-(trifluoromethoxy)benzo[d]thiazole 10037924, athiazole compound, is more and more widely used in various fields.

Reference£º
Article; Wu, Xiang-Long; Liu, Liu; Li, You-Jia; Luo, Jie; Gai, Dong-Wei; Lu, Ting-Li; Mei, Qi-Bing; Medicinal Chemistry Research; vol. 27; 5; (2018); p. 1374 – 1383;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

2289-75-0, 4,5-Dimethylthiazol-2-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 1N-(4,5-dimethylthiazol-2-yl)-2-[5-(6,7-dimethoxyquinazolin-4-yloxy)pyridin-2- yl]acetamideTriethylamine (0.245 ml) and 2-(7-azabenzotriazol-l-yl)-l,l,3,3-tetramethyluronium hexafluoropliosphate(V) (0.236 g) were added in turn to a stirred mixture of2-[5-(6,7-dimethoxyquinazolin-4-yloxy)pyridin-2-yl]acetic acid (0.2 g), 2-amino- 4,5-dimethylthiazole (0.083 g) and DMF (2 ml) and the resultant mixture was stirred at ambient temperature for 40 minutes. A mixture of a saturated aqueous sodium bicarbonate solution (5 ml) and a saturated aqueous sodium carbonate solution (5 ml) was added and the resultant mixture was stirred at ambient temperature for 1 hour. The precipitate was isolated and triturated under diethyl ether. The resultant solid was dried under vacuum at 400C for 16 hours. There was thus obtained the title compound as a solid (0.185 g); 1H NMR: (DMSOd6) 2.1 (s, 3H), 2.2 (s, 3H), 4.0 (m, 8H), 7.4 (s, IH), 7.5 (d, IH), 7.6 (s, IH), 7.8 (m, IH), 8.5 (m, IH), 8.55 (s, IH): Mass Spectrum: M-H’ 450., 2289-75-0

The synthetic route of 2289-75-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2007/99317; (2007); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica