Tag: M.W:100-200

4175-72-8,4175-72-8, 4-Chlorothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A. Benzylmercaptan (24.8 g) was added slowly to a solution of 10.8 g of sodium methoxide in 100 ml ethanol. After 10 minutes, the reaction mixture was heated to 65 and a solution of 23.8 g of 4-chlorothiazole [prepared by the method of P. Reynaud et al., Bull. Soc. Chim. France, 1735 (1962)] in 25 ml ethanol was added dropwise. When addition was complete, the reaction mixture was refluxed 36 hours. The reaction mixture was cooled, and the bulk of the solvent evaporated. Cold water (300 ml) was added to the residue, and the aqueous mixture was extracted with 200 ml ether followed by 200 ml methylene chloride. The combined organic solution was washed with brine, dried over magnesium sulfate, filtered and the solvent evaporated. Distillation of the resulting yellow oil gave 15.6 g of 4-(phenylmethylthio)thiazole, bp 122-134 (0.6 mm).

The synthetic route of 4175-72-8 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; E. I. Du Pont de Nemours and Company; US4943312; (1990); A;,
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.14527-44-7,Methyl thiazole-5-carboxylate,as a common compound, the synthetic route is as follows.

A solution of FeSO4·7H2O (33.4 g, 120 mmol) in 80 ml H2O and 70% tert-butyl hydroperoxide (12 ml, 120 mmol) were added to a stirred and cooled (10-20 ) mixture of the methyl-thiazole-5-carboxylate 6 (2.86 g, 20 mmol), 4 M H2SO4 (10 ml), and the 40% aldehyde (13.22 g, 120 mmol) separately and simultaneously. The reaction mixture was stirred at room temperature (25 ) for 1 h, extracted with EtOAc and washed with saturated Na2S2O3 solution and brine. After drying over anhydrous Na2SO4 and removing the solvent, a crude material was obtained. The material was purified by column chromatography (PE:EtOAc, 50:1, v/v) to afford compound 7 (2.97 g, 80%) as pale yellow solid. MS (ESI) m/z 186.0 [M+H]+. 1H NMR (400 Hz, CDCl3) delta 8.50 (s, 1H), 3.95 (s, 3H), 2.73 (s, 3H) ., 14527-44-7

The synthetic route of 14527-44-7 has been constantly updated, and we look forward to future research findings.

Reference：
Article; Chang, Shaohua; Zhang, Zhang; Zhuang, Xiaoxi; Luo, Jinfeng; Cao, Xianwen; Li, Honglin; Tu, Zhengchao; Lu, Xiaoyun; Ren, Xiaomei; Ding, Ke; Bioorganic and Medicinal Chemistry Letters; vol. 22; 2; (2012); p. 1208 – 1212;,
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.939-69-5,6-Hydroxybenzo[d]thiazole-2-carbonitrile,as a common compound, the synthetic route is as follows.

939-69-5, Example 2 Synthesis of Compounds 5 and 11 2-Cyano-6-pivaloyloxybenzothiazole. A solution of 2-cyano-6-hydroxybenzothiazole (2.1 g, 12.5 mmol) in 30 mL of dry THF under inert atmosphere was treated with pyridine (2.0 g, 25 mmol) followed by pivaloyl chloride (1.95 g, 16.2 mmol). This reaction was stirred 15 h at room temperature. The reaction mixture was then diluted with 100 mL of distilled water, and this solution was extracted with ethyl acetate (4*50 mL). The combined organics were washed with aqueous sodium bicarbonate (2*100 mL) and distilled water (1*100 mL), then dried over Na2 SO4 and concentrated under reduced pressure to afford 3.0 g of a thick oil. This material was chromatographed on silica gel and 1.8 g of the product was eluted with 10percent ethyl acetate/hexanes. 1 H NMR (CDCl3): delta 1.39 (s, 9H); 7.34-7.38 (m, 1H); 7.74-7.75 (d, 1H); 8.20-8.23 (d, 1H).

939-69-5 6-Hydroxybenzo[d]thiazole-2-carbonitrile 9881912, athiazole compound, is more and more widely used in various fields.

Reference：
Patent; Lumigen, Inc.; US6045991; (2000); A;; ; Patent; Lumigen, Inc.; US5965736; (1999); A;,
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.1003-07-2,Isothiazol-3(2H)-one,as a common compound, the synthetic route is as follows.

EXAMPLE 8 Isothiazolone composition was prepared by blending 14 wt % of an isothiazolone mixture comprising 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one in a weight ratio of 3:1, 1 wt % of N,N’-dimethyl-3,3′-dithiodipropionamide, 1 wt % of N,N’-dimethyl-3-thiodipropionamide, 1 wt % of methyl-3-mercapto propionamide, and 83 wt % of organic solvent, as shown in the following table 8., 1003-07-2

The synthetic route of 1003-07-2 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; Sunkyong Industries Co., Ltd.; US5919400; (1999); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

31785-05-4, Ethyl 5-amino-2-methylthiazole-4-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

B) A Schlenck flask was charged with 5-amino-2-methyl-thiazole-4-carboxylic acid ethyl ester (0.33 g, 1.80 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) (0.15 g, 0.26 mmol) and palladium dibenzylideneacetone (Pd2dba3)-chloroform complex (0.08 g, 0.08 mmol). Degassed dioxane (6.00 ml) was added, followed by 3-bromopyridine (0.23 g, 1.50 mmol). The flask was subjected to 5 cycles of evacuation and backfiring with argon. The reaction mixture was then transferred under argon to a microwave vial containing cesium carbonate (0.84 g, 2.60 mmol). The vial was then irradiated in a microwave oven at 150 C. for 10 min. The mixture was diluted with THF and the solids filtered, washing with THF. The filtrate was evaporated and the residue purified by flash chromatography (ethyl acetate/methanol) to yield 2-methyl-5-(pyridin-3-ylamino)-thiazole-4-carboxylic acid ethyl ester (0.25 g, 65%) as a light yellow solid, 31785-05-4

As the paragraph descriping shows that 31785-05-4 is playing an increasingly important role.

Reference：
Patent; Buettelmann, Bernd; Ceccarelli, Simona Maria; Jaeschke, Georg; Kolczewski, Sabine; Porter, Richard Hugh Philip; Vieira, Eric; US2006/160857; (2006); 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.3622-35-3,Benzo[d]thiazole-6-carboxylic acid,as a common compound, the synthetic route is as follows.

A mixture of 2-araino-l-(4-methoxyphenyl)ethanone hydrochloride (8 mg, 0.04 mmol), benzothiazole-6-carboxylic acid (7 mg, 0.04 mmol), tris(dimethylamino)chloro phosphonium hexafluorophosphate (48 mg, 0.14 mmol), and N,N-diisopropylethylamine (24 muL, 0.14 mmol) in NMP (600 muL) was stirred at room temperature overnight, then the solvents were evaporated in vacuo. The resulting residue was dissolved in acetic anhydride (400 muL) followed by the addition of TFA (100 muL). The reaction mixture was heated at 90 0C for 1 h, cooled to the room temperature, and concentrated in vacuo. The resulting residue was dissolved in DMSO (200 mul) and subjected to HPLC purification (Method T) to provide 6-(5- (4-methoxyphenyl)oxazol-2-yl)benzo[dJthiazole (2 mg). LC/MS (ESI) m/z 309.1 [M+H]. HPLC retention time (Method A) = 3.53 min., 3622-35-3

3622-35-3 Benzo[d]thiazole-6-carboxylic acid 601670, athiazole compound, is more and more widely used in various fields.

Reference：
Patent; AMPHORA DISCOVERY CORPORATION; WO2007/149395; (2007); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

1123-55-3, Benzo[d]thiazol-7-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1123-55-3, A mixture of 1, 3-BENZOTHIAZOL-7-AMINE (Description 43,30 mg, 0.2 mmol) and [4- (trifluoromethyl) benzyl] isocyanate (Description 3,40 mg, 0.2 mmol) in DCM (2 ml) was stirred at room temperature for 18 h. TLC analysis showed minimal reaction therefore 1,2-dichloroethane (1 ml) was added and the mixture was heated at 80C for 4 h. N, N-DIMETHYLFOM-LAMIDE (0.25 ml) was then added and the mixture was heated at 80C for 18 h. The mixture was then cooled to room temperature and stirred at this temperature for 2 h. The mixture was filtered to give the title compound as a white solid (28 mg, 40%). 1H NMR (d6 DMSO, 400 MHz) 8 9.33 (1H, s), 8.74 (1H, s), 7.82 (1H, d, J7. 9), 7.73 (3H, m), 7.55 (2H, d, J 8. 0), 7.45 (1H, t, J 8. 0), 7.10 (1H, br. t, J 5.9), 4.44 (2H, br. d, J 5. 9). M/Z (ES+) 352 (M+H+).

As the paragraph descriping shows that 1123-55-3 is playing an increasingly important role.

Reference：
Patent; MERCK SHARP & DOHME LIMITED; WO2005/28445; (2005); A2;,
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.14527-44-7,Methyl thiazole-5-carboxylate,as a common compound, the synthetic route is as follows.

A mixture of 2-bromo-5-(4-methoxybenzyloxy)pyridine (1 .10 g), methyl thiazole-5- carboxylate (644 mg), Pd(P(f-Bu)3)2 (153 mg), Cs2CO3 (1 .20 g) and DMF (10 mL) was evacuated and refilled with nitrogen three times. The mixture was stirred at 150C under N2 atmosphere for 3 hours. Insoluble material was removed by filtration through Celite. The filtrate was diluted with H2O (100 mL). The solid obtained was collected by filtration and washed with MeOH to provide the subtitle compound. MS ESI+: m/z = 357 [M+H]+.

14527-44-7, 14527-44-7 Methyl thiazole-5-carboxylate 331117, athiazole compound, is more and more widely used in various fields.

Reference：
Patent; SANOFI; SCHWINK, Lothar; BOSSART, Martin; GLOMBIK, Heiner; GOSSEL, Matthias; KADEREIT, Dieter; KLABUNDE, Thomas; MAIER, Thomas; STENGELIN, Siegfried; WO2014/56938; (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.3034-53-5,2-Bromothiazole,as a common compound, the synthetic route is as follows.

A mixture of 4-nitrophenyl)boronic acid (23.00 g, 137.78 mmol, 1.00 eq.), 2-bromothiazole (25.54 g, 155.69 mmol, 14.03 mL, 1.13 eq.), Na2C03 (36.51 g, 344.45 mmol, 2.50 eq.) and Pd(dppf)Cl2.CH2Cl2 (6.75 g, 8.27 mmol, 0.06 eq.) in Tol. (250.00 mL)/H20 (100.00 mL)/dioxane (250.00 mL) was degassed and purged with N2 for 3 times. The mixture was stirred at 80C for 12 hrs under N2 atmosphere and LCMS showed the reaction was complete. The mixture was concentrated and the residue was purified by column chromatography (Petroleum ethenEthyl acetate=50: l to 5: 1) to give 2-(4-nitrophenyl)thiazole (14.00 g, 67.89 mmol, 56.00% yield) as a yellow solid. 1H NMR (400MHz, CHLOROFORM-d) delta = 8.35 – 8.29 (m, 2H), 8.21 – 8.12 (m, 2H), 7.99 (d, J = 3.2 Hz, 1H), 7.50 (d, J = 3.2 Hz, 1H).

3034-53-5, The synthetic route of 3034-53-5 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; CYTEIR THERAPEUTICS, INC.; CASTRO, Alfredo, C.; MCCOMAS, Casey, Cameron; VACCA, Joseph; (214 pag.)WO2019/14315; (2019); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

31785-05-4, Ethyl 5-amino-2-methylthiazole-4-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 22: Compound 52 5-Amino-2-methyl-thiazole-4-carboxylic acid ethyl ester (150mg, 0.806mmol) was dissolved in dichloromethane (3ml_). To this, pyridine (0.195ml_, 2.42mmol) was added at room temperature. To this, benzenesulfonyl chloride (171 mg, 0.967mmol) was added at room temperature and stirred for 16 hours. The mixture was concentrated in vacuo, diluted with water and extracted with ethyl acetate. The organic layer was dried with Na2S04, filtered and concentrated in vacuo to dryness. The residue was dissolved in tetrahydrofuran (3ml_) and water (1 ml_). To this, lithium hydroxide monohydrate (101 mg, 2.41 mmol) was added at room temperature and stirred for 12 hours. The mixture was concentrated in vacuo and diluted with water. The mixture was acidified with 1 N hydrochloric acid solution. The product was collected by filtration, washed with diethyl ether and dried under vacuum to give Compound 52 (28mg). 1 H NMR (DMSO-de) delta: 7.85-7.75 (2H, m), 7.70-7.62 (1 H, m), 7.62-7.54 (2H, m), 2.75 (3H, obs) LCMS (Method 30) Rt 4.63 min; m/z(M-H)” 297

31785-05-4, As the paragraph descriping shows that 31785-05-4 is playing an increasingly important role.

Reference：
Patent; ANTABIO SAS; LEMONNIER, Marc; DAVIES, David; PALLIN, David; WO2014/198849; (2014); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica