Tag: M.W:100-200

6436-59-5, Ethyl 2-methylthiazole-4-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Intermediate 46 Ethyl 2-methyl-1 ,3-thiazole-4-carboxylate [6436-59-5] (5.0g, 29.2mmol) was dissolved in acetonitrile (50ml_). To this, NBS (5.7g, 32.03mmol) was added at room temperature and the mixture heated at reflux for 2 hours. To this, NBS (2.5g, 14.05mmol) was added and the mixture heated at reflux for 2 hours. To this, NBS (2.5g, 14.05mmol) was added and the mixture heated at reflux for 18 hours. The mixture was diluted with saturated sodium hydrogen carbonate solution and extracted with ethyl acetate. The organic layer was dried with MgS04, filtered and concentrated in vacuo to dryness. The residue was purified by chromatography on silica eluting with 0-50% ethyl acetate/cyclohexane. The fractions containing the desired product were combined and the solvents removed by evaporation in vacuo to give Intermediate 46 (1.58g) as a cream solid. LCMS (Method 2) Rt 2.88 min; m/z(M+H)+ 250/252, 6436-59-5

As the paragraph descriping shows that 6436-59-5 is playing an increasingly important role.

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

20949-81-9, 2-Phenylthiazole-4-carbaldehyde is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

20949-81-9, COMPOUND 12.1. 38: 4-{6,7-DIMETHOXY-2-[(2-PHENYL-1,3-THIAZOL-5- YL) METHYLl-1, 2, 3, 4-TETRAHYDROISOOUINOLIN-1-YL- N- DIETHYLBENZAMIDE; INTERMEDIATE 5.1. 7 (50 mg, 0.14 mmol) and 2-phenyl-4-thiazolecarbaldehyde (51 mg, 0.27 mmol) were dissolved in 1,2-dichloroethane (2 mL) and sodium triacetoxyborohydride (115 mg, 0.54 mmol) was added. The reaction mixture was stirred at room temperature for 18 h. Resin-bound tosylhydrazine (0.27 g, 1.5 mmol/g) was added and the mixture was agitated for another 2 h. Dichloromethane and 2 M aqueous sodium hydroxide solution were added, the mixture was shaken and passed through a Whatman 1PS filter paper. The organic phase was evaporated to dryness and purified by flash chromatography to yield the product (74 mg, 0.136 mmol, quant.). 1H NMR (500 MHz, CDC13) : 1.09, 1.23 (2 brs, 6H), 2.80, 3.04, 3.28 (3 m, 6H), 3.52 (brs, 2H), 3.82, 3.90 (2 d, J 14 Hz, 2H), 3.61, 3.85 (2 s, 6H), 4.78 (s, 1H), 6.20, 6.63 (2 s, 2H), 7.35-7. 43 (m, 7H), 7.94 (d, J 7.5 Hz, 2H). (+) LRESIMS m/z 542 (100) [M+H] +.

The synthetic route of 20949-81-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ASTRAZENECA AB; WO2005/61484; (2005); 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.1452-16-0,2-Cyanothiazole,as a common compound, the synthetic route is as follows.

A mixture of 5 mg iron trichloride (FeCI3), 2 g of sodium and 40 ml of t-amylalcohol is heated to 110 0C for 20 minutes before a mixture of 3.9 g of the thiazole-2-nitrile of the formula 1 and 7.82 g of 8 is added portion-wise. The reaction mixture is stirred at 1 10 0C for 3 hours before it is poured onto 6.3 g acetic acid in a water-methanol mixture (100ml/100ml). Bchner filtration and exhaustive washing with methanol affords 4.5 g of the desired 1 ,4- diketopyrrolo[3,4-c]pyrrole (DPP) derivative of the formula A-42 as dark blue powder; ESI- MS m/z (% int.): 302.15 ([M+H]+, 100%)., 1452-16-0

1452-16-0 2-Cyanothiazole 15111480, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; BASF SE; HAYOZ, Pascal; AEBISCHER, Olivier Frederic; DUeGGELI, Mathias; TURBIEZ, Mathieu G. R.; FONRODONA TURON, Marta; CHEBOTAREVA, Natalia; WO2010/115767; (2010); 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.934-34-9,Benzothiazolone,as a common compound, the synthetic route is as follows.

General procedure: K2CO3 9.2 g, 66.6 mmol) and 1,4-dibromobutane (21.0 mL, 177.6 mmol) were added, under stirring, to a solution of benzo[d]oxazol-2(3H)-one (3.0 g, 22.2 mmol) in anhydrous DMF (30 mL). The reaction mixture was heated at 60 C for 3 h. After cooling, the reaction mixture was poured into 100 mL water and extracted with ethyl acetate (3 x 70 mL). The combined organic layers were washed with saturated aqueous NaCl and dried over sodium sulfate. The solvent was removed in vacuo, and the residue was purified by flash column chromatography (SiO2) using hexane/ethyl acetate (8:2) as eluent to give 3.6 g (62%) of 2e as a white solid. 4.2.1.3 3-(2-Bromoethyl)benzo[d]thaizol-2(3H)-one (2b) General procedure A, yield 57%, white solid. 1H NMR (400 MHz, CDCl3) delta 7.64-6.99 (m, 4H), 4.37 (t, J = 6.2, 2H), 3.82 (t, J = 6.1, 2H). 13C NMR (101 MHz, CDCl3) delta 166.07, 154.40, 142.70, 135.83, 134.62, 122.03, 120.40, 55.74, 39.59. MS (EI) m/z 258 (M++1).

934-34-9, The synthetic route of 934-34-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Abdelazeem, Ahmed H.; Khan, Shabana I.; White, Stephen W.; Sufka, Kenneth J.; McCurdy, Christopher R.; Bioorganic and Medicinal Chemistry; vol. 23; 13; (2015); p. 3248 – 3259;,
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.394223-37-1,Benzo[d]thiazol-5-ylmethanol,as a common compound, the synthetic route is as follows.

To a mixture of compound B-188 (2.8 g, 17 mmol) in anhydrous dichloromethane (20 mL) was added manganese dioxide (14 g, 0.16 mol) at room temperature. The mixture was stirred at room temperature for 16 hours. On completion, the reaction was filtered, and the filtrate was concentrated in vacuo to give compound B-189 (2.5 g, 93% yield) as a yellow solid.

394223-37-1, As the paragraph descriping shows that 394223-37-1 is playing an increasingly important role.

Reference£º
Patent; FORUM PHARMACEUTICALS, INC.; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; MCRINER, Andrew, J.; WO2015/66371; (2015); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

1003-32-3, Thiazole-5-carboxyaldehyde is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A. Hydrazone of 5-thiazolecarboxaldehyde and t-butylcarbazate Using the procedure of Example 1D, but replacing benzaldehyde with 5-thiazolecarboxaldehyde (Dondoni, et. al., Synthesis, 998(1987)), provided the desired compound., 1003-32-3

The synthetic route of 1003-32-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Abbott Laboratories; US5461067; (1995); 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.20949-81-9,2-Phenylthiazole-4-carbaldehyde,as a common compound, the synthetic route is as follows.

A solution of aldehyde 5 (10 mmol), benzoylacetone 6(10 mmol), concentrated H2SO4 (0.1 mL), thiourea andmethanol (50 mL) was refluxed for 24 h. The mixture wascooled and the precipitates were collected and crystallizedfrom methanol to produce compound 7.Yield: 74%. mp:148-151C , 1HNMR (DMSO-d6) : 1.69(s,3H,CH3), 5.45 (s,1H,H4), 7.35 (s, 1H,H-thiazol), 7.45-7.82 (m, 10H, phenyl), 7.89 (bs,1H, NH), 9.20 (bs,1H, NH),13CNMR (DMSO-d6) : 16.3 (CH3-C6), 55.2 (C4-tetrahydropyrimidine), 110.3, 113.4, 127.1, 127.3, 128.1,128.2, 129.3, 129.5, 130.1, 130.3, 131.4, 133.4, 133.7, 137.8,155.2, 162.3, 170.1, 175.3, 188.4, IR (KBr) cm-1: 3317,3114, 2924, 1713, 1674, 1180. Anal. Calcd. for C21H17N3OS2: C, 64.42; H, 4.38; N, 10.73. Found: C, 64.39; H, 4.46;N,10.56.

20949-81-9, The synthetic route of 20949-81-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Sharifzadeh, Mohammad; Khademi, Hamid Reza; Almasirad, Ali; Rezayan, Zahra; Ghayahbashi, Mohsen Rezayan; Amini, Mohsen; Letters in drug design and discovery; vol. 10; 9; (2013); p. 900 – 905;,
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.139670-03-4,2-Bromo-4-chlorothiazole,as a common compound, the synthetic route is as follows.

Isopropylmagnesium chloride lithium chloride complex solution (4.58 mL, 5.95 mmol) was added slowly to a suspension of 3-(5-(3-cyanophenyl)-1,3-dimethyl-2,4-dioxo-3,4-dihydro-1H-pyrrolo[3,4-d]pyrimidin-6(2H)-yl)-N-methoxy-N-methylpropanamide (784 mg, 1.983 mmol) and 2-bromo-4-chlorothiazole (Intermediate Q, step 2) (394 mg, 1.983 mmol) in THF (30 mL). The mixture was stirred at room temperature for 40 mins. The reaction mixture was quenched with saturated NH4Cl(aq) and extracted with EtOAc (2¡Á). The combined organic extracts were washed with brine, dried over sodium sulphate and evaporated under vacuum. Purification by chromatography on silica, eluting with 10-60% EtOAc/hexane afforded the title compound. [1181] 1H NMR (400 MHz, CDCl3) delta 7.79-7.59 (4H, mult), 7.51 (1H, s), 6.51 (1H, s), 4.41 (2H, t), 3.50 (2H, t), 3.41 (3H, s), 3.35 (3H, s) [1182] LC-MS Rt 1.20 mins [M+H]+ 454.0 (Method 2minLowpHv03)

139670-03-4, As the paragraph descriping shows that 139670-03-4 is playing an increasingly important role.

Reference£º
Patent; NOVARTIS AG; AHMED, Mahbub; ASHALL-KELLY, Alexander; GUERITZ, Louisa; MCKENNA, Jeffrey; MCKENNA, Joseph; MUTTON, Simon; PARMAR, Rakesh; SHEPHERD, Jon; WRIGHT, Paul; US2014/171417; (2014); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

89281-44-7, 2-Methylthiazol-5-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

89281-44-7, Compound 3 was dissolved in methanol (10 mL), and then a solution of the corresponding thiazole amine in methanol (5 mL) was added to the solution. The reaction mixture was stirred at 45 C for 12 h. After the reaction was completed, which was monitored with TLC, the mixture was concentrated and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated. Crude product was purified by column chromatography (ethyl acetate/petroleum ether = 8:1) to give compound 7a and 7b.

As the paragraph descriping shows that 89281-44-7 is playing an increasingly important role.

Reference£º
Article; Zheng, Min; Yao, Ting-Ting; Xu, Xiao-Jun; Cheng, Jing-Li; Zhao, Jin-Hao; Zhu, Guo-Nian; Bioorganic and Medicinal Chemistry Letters; vol. 24; 15; (2014); p. 3565 – 3568;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

72605-86-8, Methyl 2-chlorothiazole-5-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

72605-86-8, General procedure: A mixture of compounds 12a-c (6.5 mmol, 1.0 eq), methyl2-chlorothiazole-5-carboxylate (1.2 g, 6.5 mmol, 1.0 eq),and K2CO3 (904.0 mg, 6.5 mmol, 1.0 eq) in CH3CN(10.0 mL) was stirred at 82 C for 16 h. The mixture wasconcentrated to give the crude compounds 13-15, whichwas put into next step without further purification.

As the paragraph descriping shows that 72605-86-8 is playing an increasingly important role.

Reference£º
Article; Zhang, Jiankang; Xi, Jianjun; He, Ruoyu; Zhuang, Rangxiao; Kong, Limin; Fu, Liping; Zhao, Yanmei; Zhang, Chong; Zeng, Linghui; Lu, Jingyi; Tao, Rujia; Liu, Zhengmengtong; Zhu, Huajian; Liu, Shourong; Medicinal Chemistry Research; vol. 28; 10; (2019); p. 1633 – 1647;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica