Day: October 20, 2020

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

Key Intermediate 1 Clnt-l A”) : 2-bromo-5-(3-ethoxy-benzesulfonylVthiazole [0103] Part A: A mixture of 3-ethoxythiophenol (10.0 g, 0.065 mol), 2-amino-5- bromothiazole monohydrobromide (17.7 g, 0.068 mol), 1 M aqueous NaOH (200 mL), and THF (200 mL) was stirred at RT for 15 min. The reaction mixture was warmed to 55 0C over Ih, cooled to RT and concentrated under reduced pressure to remove THF. The residue was partitioned between EtOAc (ca. 500 mL) and water (ca 100 mL), and the layers were separated. The organic phase was washed with saturated aqueous NaCl (1 x 200 mL), dried (Na2SO4), and concentrated under reduced pressure to give a solid. The solid was triturated with CH2Cl2.”hexanes (ca. 10:1) to provide 5-(3-ethoxy-phenylsulfanyl)-thiazol-2-ylamine (13.2 g, 80%) as a light brown solid. LCMS (m/z): 253 (M+H)+

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

Reference£º
Patent; ICAGEN, INC.; WO2007/75852; (2007); 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.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

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

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

74370-93-7, 4-(tert-Butyl)thiazol-2-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 4-(iert-butyl)thiazol-2-amine (200 mg, 1.28 mmol), and DIEA (438 muIota_, 2.56 mmol) in THF (1.5 mL) was added cyclopentanecarbonyl chloride (172 muL, 1.41 mmol). After allowing to stand at ambient temperature for 1 h, the mixture was washed with 1 N NaOH (2X2 mL), brine (2X2 mL), dried with sodium sulfate, filtered, and concentrated. Flash chromatography (0-20% hexanes/ethyl acetate) provided N-(4-tert-butyl-1 ,3-thiazol-2- yl)cyclopentanecarboxamide (286 mg, 89% yield) (A127) as a colorless solid. LCMS for C13H2oN2OS, found 253 [M+H]+., 74370-93-7

74370-93-7 4-(tert-Butyl)thiazol-2-amine 2734202, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; KEZAR LIFE SCIENCES; THE REGENTS OF THE UNIVERSITY OF CALIFORNIA; MCMINN, Dustin; JOHNSON, Henry; TAUNTON, John, William; CARRASCO, Yazmin, Paulina; SHARP, Phillip, Patrick; (156 pag.)WO2019/46668; (2019); 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.34259-99-9,4-Bromothiazole,as a common compound, the synthetic route is as follows.

Step 1 : Na (0.69 g, 30 mmol) was added to a solution of ^-butylthiol(3.38 mL, 30 mmol) at room temperature portionwise and stirred for 0.5 h. Then, 4- bromothiazole 1 (0.49 g, 3.0 mmol) was added and the mixture was heated to reflux overnight. LC-MS indicate desired product formed and the reaction was concentrated. The residue was dissolved in EA, filtered through silica gel and the filtrate was concentrated again. The residue was used for the next step directly., 34259-99-9

34259-99-9 4-Bromothiazole 2763218, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; ACHAOGEN, INC.; WO2009/55696; (2009); 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.42182-65-0,Benzo[d]thiazol-2-ylmethanamine,as a common compound, the synthetic route is as follows.,42182-65-0

A solution of 4-(3-chloro-1,2,4-triazin-5-yl)-3-methylphenol (60 mg, 0.27 mmol), benzothiazol-2-yl-methylamine (89 mg, 0.54 mmol), pyridine (28 muL, 0.32 mmol) in anhydrous acetonitrile (0.4 mL) was stirred at 85C overnight. The solution was then concentrated and the residue was purified by preparative TLC (silica gel, dichloromethane/methanol 92/8) to give 4-{3-[(1,3-benzothiazol-2-ylmethyl)amino]-1,2,4-triazin-5-yl}-3-methylphenol (33.8 mg, 36%) as a yellow oil. ESI-MS m/z 350 (M+H)+. 1H NMR (CDCl3), delta (ppm): 8.78 (s, 1H), 7.97 (d, J = 8.1 Hz, 1H), 7.83 (d, J = 8.1 Hz, 1H), 7.48 (t, J = 7.5 Hz, 1H), 7.39-7.31 (m, 2H), 6.77-6.75 (m, 2H), 6.56 (br s, 1H), 5.16 (s, 2H), 2.30 (s, 3H).

42182-65-0 Benzo[d]thiazol-2-ylmethanamine 350414, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; Mutabilis; EP2141164; (2010); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

7709-58-2, 4-(Chloromethyl)thiazole hydrochloride is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

20 ml (0.29 mol) of cyclopropylamine was added to a solution of 4.9 g (29.0 mmol) of 4- (chloromethyl)-thiazole hydrochloride in 45 ml ethanol and 45 ml of saturated aqueous sodium hydrogen carbonate. The reaction mixture was stirred for 20 hrs at ambient temperature and extracted with ethyl acetate (3 x 100 ml). The combined organic layers were dried over magnesium sulphate and concentrated in vacuum. Column chromatography (gradient n- pentane/ethyl acetate) yielded 1.5 g (32% yield) of N-(1 ,3-thiazol-4-ylmethyl)cyclopropylamine. At ambient temperature a solution of 0.28g (1.4 mmol) of 3-(difluoromethyl)-1-methyl-pyrazole- 4-carbonyl chloride in 2 ml of tetrahydrofurane was added drop wise to a solution of 0.20 g (1.3 mmol) of N-(1 ,3-thiazol-4-ylmethyl)-cyclopropylamine and 0.6 ml triethylamine in 4 ml tetrahydrofurane. The reaction mixture was stirred for 16 hrs at ambient temperature and quenched with water. The watery layer was extracted three times with ethyl acetate (3 x 20 ml), the combined organic layers were dried over magnesium sulphate and concentrated in vacuum. Column chromatography (gradient n-pentane/ethyl acetate) yielded 0.13 mg (51 % yield) of N- cyclopropyl-N-(1 ,3-thiazol-4-yl-methyl)-1-methyl-3-difluoromethyl-pyrazole-4-carboxamide (M+1 = 313)., 7709-58-2

7709-58-2 4-(Chloromethyl)thiazole hydrochloride 2763289, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; BAYER CROPSCIENCE SA; WO2008/15189; (2008); 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.23056-10-2,5-Thiocyanatothiazol-2-amine,as a common compound, the synthetic route is as follows.

To a solution of Part A thiocyanate (800 mg, 5.09 mmol) and Example 1D (1.51 g, 5.09 mmol) in THF (20 mL) was added DEPBT (3.05 g, 10.18 mmol) and iPr2NEt (1.8 mL, 10.18 mmol). The reaction mixture was stirred at RT for 18 h, then was concentrated in vacuo. The residue was taken up in EtOAc and brine, and extracted with EtOAc (3¡Á). The combined organic extracts were washed with 1N aqueous HCl, H2O, 5% aqueous NaHCO3, H2O, and brine, dried (MgSO4), and concentrated in vacuo. The residue was chromatographed (SiO2; continuous gradient 10% EtOAc/Hex to 100% EtOAc/Hexane) to give Part B compound (927 mg, 42%) as an orange solid.

23056-10-2, As the paragraph descriping shows that 23056-10-2 is playing an increasingly important role.

Reference£º
Patent; Bristol-Myers Squibb Company; US2008/9465; (2008); 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.5304-21-2,6-Bromo-2-methylbenzo[d]thiazole,as a common compound, the synthetic route is as follows.,5304-21-2

Compound 11 (114 mg, 0.500 mmol)Was dissolved in methanol (5.00 mL), And benzaldehyde (51.0 muL, 0.500 mmol),Sodium hydroxide (60.0 mg, 1.50 mmol) was added,And heated under reflux for 14 hours under stirring.Precipitated crystals were collected by filtration,And washed with methanol and purified water to obtain Compound 12 in a yield of 50.0 mg (31.8percent).

As the paragraph descriping shows that 5304-21-2 is playing an increasingly important role.

Reference£º
Patent; Kyoto University; Nihon Medi-Physics Co.,Ltd.; Saji, Hideo; Ono, Masahiro; Inohara, Tadashi; Seki, Ikuya; (24 pag.)JP2016/79108; (2016); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica