Category: 13535-01-8

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.13535-01-8, name is 5-Bromopyridin-3-amine, molecular formula is C5H5BrN2, molecular weight is 173.01, as common compound, the synthetic route is as follows.Computed Properties of C5H5BrN2

[0612] To a solution of 3-amino-5-bromo pyridine (XVIII) (1.0 g, 5.78 mmol) in dry pyridine (10 inL) was added pivaloyl chloride (XIX) (769 mg, 6.38 mmol). The reaction mixture was stirred at room temperature for 3 h. The reaction was poured into an ice water/saturated aqueous NaHCC mixture and stirred for 30 min. The precipitate was filtered, washed with cold water and dried at room temperature to yield N-(5-bromopyridin-3-yl)pivalamide (XX) as an off- white solid (1.082 g, 4.22 mmol, 73.1% yield). NMR (OMSO-d6, 500 MHz) delta ppm 1.23 (s, 9H), 8.37 (d, J=2Hz, IH), 8.39 (t, J=2Hz, IH), 8.80 (d, J=2Hz, IH), 9.58 (brs, IH); ESIMS found CioHi3BrN20 mlz 258.9 (Br81M+H).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,13535-01-8, 5-Bromopyridin-3-amine, and friends who are interested can also refer to it.

Reference:
Patent; SAMUMED, LLC.; KC, Sunil Kumar; WALLACE, David Mark; CAO, Jianguo; CHIRUTA, Chandramouli; MARAKOVITS, Joseph Timothy; BOLLU, Venkataiah; HOOD, John; (293 pag.)WO2017/23988; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 13535-01-8, 5-Bromopyridin-3-amine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, 13535-01-8, blongs to pyridine-derivatives compound. Recommanded Product: 13535-01-8

To a solution of 5-bromopyridin-3-amine (4.75 g, 27.45 minol) in dioxane (45 mL) was added cyclopropylboronic acid (4.75 g, 55.30 minol), C52CO3(28 g, 85.67 minol), tetrakis(triphenylphosphane) palladium(1.66 g, 1.44 minol) and water (5 mL) at room temperature. The resultingminxture was then stirred for 15 h at 100 C. After cooling to room temperature, the reaction mxiture was diluted with water (200 mL). The resultingminxture was extracted with ethyl acetate (500 mL x 3). The organic phases were combined, washed with brine and dried over Na2SO4. The solvent was removed under reduced pressure and the residue was purified by flash chromatography eluting with EtOAc in hexane (0% to 100% gradient) to yield 5-cyclopropylpyridin-3-amine as light brown oil (2.08 g, 56%). MS: m/z = 135.0 [M+Hj .

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,13535-01-8, its application will become more common.

Reference:
Patent; MERCK PATENT GMBH; SHERER, Brian A.; BRUGGER, Nadia; (546 pag.)WO2017/106607; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 13535-01-8 ,Some common heterocyclic compound, 13535-01-8, molecular formula is C5H5BrN2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

To a solution of 3-amino-5-bromo pyridine (XX) (1.0 g, 5.78 mmol) in dry pyridine (10 mL) was added pivaloyl chloride (XXI) (769 mg, 6.38 mmol). The reaction mixture was stirred at room temperature for 3 h. The reaction was poured into an ice water/saturated aqueous NaHCO3 mixture and stirred for 30 min. The precipitate was filtered, washed with cold water and dried at room temperature to yield N-(5-bromopyridin-3-yl)pivalamide (XXII) as an off- white solid (1.082 g, 4.22 mmol, 73.1% yield). 1H NMR (DMSO-d6, 500 MHz) delta ppm 1.23 (s, 9H), 8.37 (d, J=2Hz, 1H), 8.39 (t, J=2Hz, 1H), 8.80 (d, J=2Hz, 1H), 9.58 (brs, 1H); ESIMS found C10H13BrN2O m/z 258.9 (Br81M+H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 13535-01-8, 5-Bromopyridin-3-amine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; SAMUMED, LLC; KC, Sunil Kumar; WALLACE, David Mark; CAO, Jianguo; CHIRUTA, Chandramouli; HOOD, John; (322 pag.)WO2016/40193; (2016); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 13535-01-8, Adding some certain compound to certain chemical reactions, such as: 13535-01-8, name is 5-Bromopyridin-3-amine,molecular formula is C5H5BrN2, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 13535-01-8.

To a solution of 5-bromopyridin-3-amine (XIX) (535 mg, 3.09 mmol) in MeOH (62 mL) was added acetone (296 tL, 4.02 mL). The pH was adjusted to 4 using HOAc and stirred for 30 mi NaCNBH3 (272 mg, 4.33 mmol) was added and stirred at room temperature overnight. The MeOH was removed under vacuum and the residue was partitioned between EtOAc and saturated aqueous NaHCO3. The organic layer was dried over Mg504 and evaporated under vacuum. The cmde product was purified on a silica gel column (100% hexanes -* 90:10 hexanes:EtOAc) to produce 5-bromo-N-isopropylpyridin-3-amine (XXXVII) as an oil which slowly solidified into an off-white solid (309 mg, 1.44 mmol, 47% yield). ?H NMR (DMSO-d6, 500 MHz) ppm 1.12 (d, J6.3Hz, 6H), 3.55-3.59 (m, 1H), 6.03 (d, J7.9Hz, 1H), 7.05-7.06 (m, 1H), 7.75 (d, J2Hz, 1H), 7.90 (d, J2Hz, 1H); ESIMS found C8H,,BrN2 mlz 215.1 (M+H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 13535-01-8, 5-Bromopyridin-3-amine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; SAMUMED, LLC.; KC, Sunil Kumar; WALLACE, David Mark; CAO, Jianguo; CHIRUTA, Chandramouli; HOOD, John; (240 pag.)WO2017/23975; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 13535-01-8, name is 5-Bromopyridin-3-amine, molecular formula is C5H5BrN2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. Safety of 5-Bromopyridin-3-amine

Intermediate 4Preparation of lambda/-(5-bromo-3-pyridinyl)-2,4-difluorobenzenesulfonamide To a cold (0 0C) stirred solution of 3-amino-5-bromopyridine (18.6 g, 107.4 mMol) in dry pyridine (100 mL) was added 2,4-difluorobenzenesulfonyl chloride (25 g, 112.8 mMol) over 3 minutes. The reaction mixture was stirred at 0 0C for 1 h and evaporated to dryness under vacuum. The residue was diluted with H2O (400 mL) and EtOAc (400 mL). The organic layer was washed with H2O and brine, and the combined aqueous layers were extracted with EtOAc (100 mL). The combined extracts were dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was dissolved in boiling EtOAc (200 mL), and placed in a freezer for 2 days. Two crops were obtained through filtration, which were combined and triturated with boiling 35% EtOAc in hexanes. After cooling to room temperature, the precipitate was collected by filtration and dried to constant weight to provide 27.2 g of iV-(5-bromo-3-pyridinyl)-2,4- difluorobenzenesulfonamide as a light orange solid. MS (ES) m/e 351.0 (M + H)+.

With the rapid development of chemical substances, we look forward to future research findings about 13535-01-8.

Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2008/157191; (2008); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem