Category: 34259-99-9

New learning discoveries about 34259-99-9

34259-99-9, As the paragraph descriping shows that 34259-99-9 is playing an increasingly important role.

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.

2- (3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenyl) imidazo [1,2- a] pyridine(100 mg, 0.31 mmol),Palladium acetate (4 mg, 0.016 mmol),Triphenylphosphine (16 mg, 0.06 mmol),And sodium carbonate (66 mg, 0.62 mmol)After adding 1,4-dioxane and water at a ratio of 1: 1 in 2 mL portions4-Bromothiazole (51 mg, 0.31 mmol) was added thereto, and the mixture was stirred at 90 ¡ã C for 16 hours.After the reaction is completed, the reaction mixture is cooled to room temperature and the reaction product is separated into water and ethyl acetate. The combined organic layers were concentrated and the concentrate was purified by silica gel column chromatography (dichloromethane: ethyl acetate, 10: 1 v / v) to give 4- (3- (imidazo [1,2- a] pyridin- ) Phenyl) thiazole (45 mg, 52percent).

34259-99-9, As the paragraph descriping shows that 34259-99-9 is playing an increasingly important role.

Reference£º
Patent; Korea Research Institute of Chemical Technology; Jeon Mun-guk; Kim Gwang-rok; Huh Yun-jeong; Lee Jun-mi; (27 pag.)KR2018/101671; (2018); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

Some tips on 34259-99-9

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

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

Some tips on 34259-99-9

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

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.

a) 6- (Thiazol-4-yl)- 8-((2- (trimethylsilyl)ethoxy)methoxy)-3- ((2- (trimethylsilyl)ethoxy)methyl)guinazolin-4(3H)-oneA suspension of 4-bromo-thiazole (0.02 g, 0.1 mmol), (6-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-8- ((2- (trimethylsilyl)ethoxy)methoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)quinazolin-4(3H)-one (0.05 g, 0.08 mmol, example 28), bis (diphenylphosphino)feffocene-palladium(II)dichloride (0.01 g, 0.01 mmol), potassium carbonate (0.03 g, 0.25 mmol) and water (0.2 ml) in dimethylformamide (1 ml) was stirred in a sealed tube at 100 ¡ãC for 2 hours and then at 80 ¡ãC overnight. Filtration and chromatography (C18 reverse phase HPLC, methanol / water (0.1percent formic acid) = 40:60 to 100:0) yielded thetitle compound as white solid (0.01 g, 18 percent). MS: mle = 506.7 [M+Hf?., 34259-99-9

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

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; BISSANTZ, Caterina; BONNAFOUS, Rene; BUETTELMANN, Bernd; JAKOB-ROETNE, Roland; LERNER, Christian; RUDOLPH, Markus; WO2014/102233; (2014); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

Simple exploration of 34259-99-9

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

34259-99-9, 4-Bromothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Pd(dppf)Cl2.CH2Cl2 (0.17 g, 0.0002 mole) was added to a stirred mixture of 4- bromothiazole (0.7 g, 0.004 mol), sodium carbonate ( 1.3 g, 0.012 mole) and 4-(4,4,5,5- tetramethyl-[l,3,2]dioxaborolan-2-yl)benzaldehyde (1.89 g, 0.008 mole) in a mixture of 1,4-dioxane and water (25 mL, 4: 1). The reaction mixture was heated to 80 ¡ãC and maintained for 6 hours, cooled to RT, diluted with H20 (10 mL), extracted with ethyl acetate (25 mL x 3). The organic extracts were combined, dried over anhydrous Na2S04 and concentrated under vacuum to obtain the crude 4-(thiazol-4-yl) benzaldehyde that was used as such for further reaction.

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

Reference£º
Patent; SUVEN LIFE SCIENCES LIMITED; NIROGI, Ramakrishna; SHINDE, Anil Karbhari; MOHAMMED, Abdul Rasheed; BADANGE, Rajesh Kumar; JAYARAJAN, Pradeep; BHYRAPUNENI, Gopinadh; JASTI, Venkateswarlu; (172 pag.)WO2018/42362; (2018); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

Downstream synthetic route of 34259-99-9

As the paragraph descriping shows that 34259-99-9 is playing an increasingly important role.

34259-99-9, 4-Bromothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step 1. 4-Neopentylthiazole. 4-Bromothiazole (1.98 g, 12.1 mmol) was covered with a 0.5 M solution of neopentylzinc iodide in THF (96 mL, 48.2 mmol). Pd2dba3.CHCI3 (624 mg, 0.603 mmol) and 2(-di-te/t-butylphosphine)biphenyl (720 mg, 2.41 mmol) were added and the reaction mixture was placed in an oil bath pre-heated to 70 ¡ãC. The resulting solution was allowed to stir for 24 h at 70 ¡ãC. The resulting mixture was cooled to room temperature and concentrated under vacuum and the residue was dissolved in ethyl acetate (100 mL) and subsequently washed with aqueous NaOH (2 x 40 mL, 3N). The organic phase was then dried (Na2SO4), filtered, concentrated under vacuum and the residue was purified on a silica gel column (eluant hexane to hexane/ethyl acetate 8/2) to give 4-neopentylthiazole (1.42 g, 75percent), retention time (min) = 1.198, method [1], MS(ESI) 156.1 (M+H).

As the paragraph descriping shows that 34259-99-9 is playing an increasingly important role.

Reference£º
Patent; ELAN PHARMACEUTICALS, INC.; WO2007/47306; (2007); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica