Category: 13534-97-9

Related Products of 13534-97-9 ,Some common heterocyclic compound, 13534-97-9, 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.

Step 1; To a solution of 2-bromo-5-aminopyridine (3 g, 17.3 mmol) and potassium thiocyanate (4.2 g) in acetic acid (20 mL), bromine (3.3 g) was added dropwise under icebath-cooling. The solution was then stirred for 1 hour and subsequently at 100°C overnight. After the reaction mixture was cooled, water was added thereto. The precipitate was collected by filtration, then subjected to a next reaction without further purification.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,13534-97-9, its application will become more common.

Reference:
Patent; Shionogi & Co., Ltd.; EP2426135; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 13534-97-9, name is 6-Bromopyridin-3-amine, the common compound, a new synthetic route is introduced below. Recommanded Product: 13534-97-9

To a stirred solution of 6-bromopyridin-3-amine (2.0 g, 11.56 mmol) in DCM (50 mL), 2-phenylacetic acid (2.04 g, 15.02 mmol), and TEA (4.60 g, 46.24 mmol) were added, followed by the addition of T3P (9.19 g, 28.90 mmol) at 0C. The resulting mixture was stirred at rt for 16 h. The reaction mixture was washed with saturated NaHCOs aqueous solution (100 mL). The organic layer was dried over anhydrous Na2S04 and filtered. The filtered solution was concentrated under reduced pressure and the resulting crude compound was purified by flash column chromatography using 25% ethyl acetate in pet ether as eluent to afford the title compound (2,30 g, 68%) as an off-white solid.LC-MS (method 1): Rt = 2.46 min; m/z = 291.08 (M+H+).

The synthetic route of 13534-97-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ORYZON GENOMICS, S.A.; CARCELLER GONZALEZ, Elena; ORTEGA MUNOZ, Alberto; SALAS SOLANA, Jorge; (103 pag.)WO2019/110663; (2019); 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. 13534-97-9, name is 6-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. HPLC of Formula: C5H5BrN2

2. Preparation of diethyl 2-((6-bromopyridine-3-ylamino)methylene)malonate 6-bromopyridine-3-amine (74g, 0.43mol) and diethyl ethoxymethylenemalonate (100mL) were added ethanol (680mL). The mixture is reacted under heating to reflux for 5h. The reaction mixture was cooled. The solid was separated out and filtered by suction. The resulting solid was washed with petroleum ether to produce 125.4g of the title compound as a pale-yellow solid in a yield of 85.2%.

With the rapid development of chemical substances, we look forward to future research findings about 13534-97-9.

Reference:
Patent; Xuanzhu Pharma Co., Ltd.; WU, Frank; ZHANG, Yan; EP2719697; (2014); 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. 13534-97-9, name is 6-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. Recommanded Product: 6-Bromopyridin-3-amine

Step 3: ethyl 4-(5-amino-2,3′-bipyridin-6′-yloxy)cyclohexanecarboxylate (B-33)To a solution of ethyl 4-(5-(4,4,5s5-tetramethyl-l,3,2-dioxaborolan-2-yl)pyridin-2- yloxy)cyclohexanecarboxylate (300 mg, 0.799 mmol) and 5-amino-2-bromopyridine (160 mg, 0.924 mmol) in 1,4 dioxane:3/40 (3:1, 20 mL) was addedtetrakis(triphenylphosphine)palladium(0) (194 mg, 0.168 mmol) and Na2C03 (267 mg, 2.52 mmol). The reaction mixture was heated to reflux and stirred for 15 h. The solution was filtered through celite, concentrated and purified by ISCO to yield ethyl 4-(5-amino-2,3′- bipyridin-6′-yloxy)cyclohexanecarboxylate as a brown oil (191 mg, 70percent yield 1 :1 trans is ratio). MS (M+l): 342.

With the rapid development of chemical substances, we look forward to future research findings about 13534-97-9.

Reference:
Patent; SCHERING CORPORATION; TING, Pauline, C.; LEE, Joe, F.; ASLANIAN, Robert, G.; WO2011/31628; (2011); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem