Pyridine-derivatives

Electric Literature of 53937-02-3, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 53937-02-3, name is 4-Benzyloxy-2-(1H)-pyridone. This compound has unique chemical properties. The synthetic route is as follows.

Example 2Preparation of 4-(Benzyloxy)-l-(l-(2-morpholinoethyl)-li/-indazol-5-yl)pyridin-2(liJ)- one hydrochloridea) 4-(Benzyloxy)- 1 -(3 -methyl-4-nitrophenyl)pyridin-2( Ii7)-one; Chemical Formula: C19H16N2O4Exact Mass: 336.11 Molecular Weight: 336.34[0083] To a solution of 5-fluoro-2-mtrotoluene (1.00 g, 6.44 mmol) in DMF (6.5 mL) was added 4-benzyloxy-pyridin-2(lH)-one (1 11 g, 5.55 mmol) and Na2CO3 (0.588 g, 5.55 mmol). After stirring at 12O0C for 56 hours, the reaction mixture was cooled, and the solids were collected by filtration and washed with EtOAc (100 ml) and H2O (100 mL). The solids were triturated with hot H2O (50 mL) and then washed with Et2O (50 mL) to yield the title compound (0.94 g, 50%) as a light yellow solid: 1H NMR (500 MHz, DMSO-^6) delta 8.08 (d, J= 8.5 Hz, IH), 7.64 (d, J= 8.5 Hz, IH), 7.58 (d, J= 2.0 Hz, IH), 7.50 (dd, J = 9.0, 2.5 Hz, IH), 7.47-7.37 (m, 5H), 6.16 (dd, J = 8.0, 3.0 Hz, IH), 6.01 (d, J= 2.5 Hz, IH), 5 15 (s, 2H), 2.55 (s, 3H); ESI MS m/z 337 [M + H]+

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 53937-02-3, 4-Benzyloxy-2-(1H)-pyridone.

Reference:
Patent; AMR TECHNOLOGY, INC.; WO2008/86404; (2008); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 890302-02-0, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 890302-02-0, name is 2-amino-6-(Trifluoromethyl)nicotinic acid. This compound has unique chemical properties. The synthetic route is as follows.

difluorophenyl)propanoic acid (0.731 g, 2.426 mmol) in DCM (32 mL) was added N- methylmorpholine (0.670 mL, 6.06 mmol) followed by isobutyl chloroformate (0.640 mL, 4.85 mmol). The reaction was then cooled to -20 C (IPA/dry ice) and 2-amino-6- (trifluoromethyl)nicotinic acid (0.50 g, 2.43 mmol) was added. The reaction slurry was allowed to slowly warm to ambient temperature overnight as bath thawed for 18 h. The reaction was heated to reflux for 2 h. Upon cooling to ambient temperature, the reaction was filtered. The filtrate was diluted with EtOAc. The organic layer was washed with saturated sodium bicarbonate, brine, dried (Na2S04) and concentrated in vacuo. The crude product was triturated with hexanes and filtered to give the product which was a mixture due to some racemization as an orange solid (0.41 g, used as is). NMR (500 MHz, CDC ) delta 8.80 – 8.75 (m, 1H), 7.95 – 7.89 (m, 1H), 6.74 – 6.71 (m, 3H), 5.52 – 5.44 (m, 1H), 5.08 – 5.01 (m, 1H), 3.44 – 3.37 (m, 1H), 3.19 – 3.15 (m, 1H), 1.47 – 1.44 (m, 9H)

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 890302-02-0, 2-amino-6-(Trifluoromethyl)nicotinic acid.

Reference:
Patent; VIIV HEALTHCARE UK (NO.5) LIMITED; BABU, Suresh; BELEMA, Makonen; BENDER, John A; IWUAGWU, Christiana; KADOW, John F.; KUMARAVEL, Selvakumar; NAGALAKSHMI, Pulicharla; NAIDU, B. Narasimhulu; PATEL, Manoj; PEESE, Kevin M; RAJAMANI, Ramkumar; SAULNIER, Mark; WANG, Alan Xiangdong; (536 pag.)WO2018/203235; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 102368-13-8 , The common heterocyclic compound, 102368-13-8, name is 1,1′-Thiocarbonylbis(pyridin-2(1H)-one), molecular formula is C11H8N2O2S, 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.

1,1”-Thiocarbonyldi-2(1H)-pyridone (0.802 g, 3.45 mmol) was added to a DCM (15.70 mL) solution containing (1r,2R,6S)-2,6-dimethoxycyclohexanamine (0.5 g, 3.14 mmol). The resulting mixture was stirred overnight at RT. The reaction was concentrated and purified on silica eluting with a hexanes/EtOAc gradient (0-100%). Desired fractions were then pooled and concentrated to yield the title compound (0.45g, 71%).

The synthetic route of 102368-13-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AMGEN INC.; CHEN, Ning; CHEN, Xiaoqi; CHEN, Yinhong; CHENG, Alan C.; CONNORS, Richard V.; DEIGNAN, Jeffrey; DRANSFIELD, Paul John; DU, Xiaohui; FU, Zice; HARVEY, James S.; HEATH, Julie Anne; HEUMANN, Lars V.; HORNE, Daniel B.; HOUZE, Jonathan; KALLER, Matthew R.; KAYSER, Frank; KHAKOO, Aarif Yusuf; KOPECKY, David J.; LAI, Su-Jen; MA, Zhihua; MEDINA, Julio C.; MIHALIC, Jeffrey T.; NISHIMURA, Nobuko; OLSON, Steven H.; PATTAROPONG, Vatee; SWAMINATH, Gayathri; WANG, Xiaodong; WANSKA, Malgorzata; YANG, Kevin; YEH, Wen-Chen; (700 pag.)WO2018/97945; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 7169-97-3 ,Some common heterocyclic compound, 7169-97-3, molecular formula is C7H7BrN2O, 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.

General procedure: General procedure 13: A mixture of the corresponding aryl halide or heteroaryl halide (1.0 equiv.), CuCI (0.10 equiv.), KOH (2.0 equiv.), and ethylenediamine or propane-1 ,3-diamine (4.5 equiv.) was stirred at 20 C (for aryl iodides) or 90 C (for aryl bromides) for 12 – 24 h in a sealed vial. The mixture was allowed to cool and was then extracted with hot EtOAc (*5). The combined organics were concentrated and the excess of diamine was removed by co-evaporation with toluene. The crude material was used 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,7169-97-3, its application will become more common.

Reference:
Patent; THOMAS HELLEDAYS STIFTELSE FOeR MEDICINSK FORSKNING; SCOBIE, Martin; WALLNER, Olov; KOOLMEISTER, Tobias; VALLIN, Karl Sven Axel; HENRIKSSON, Carl Martin; HOMAN, Evert; HELLEDAY, Thomas; JACQUES, Sylvain; DESROSES, Matthieu; JACQUES-CORDONNIER, Marie-Caroline; FISKESUND, Roland Julius Yu; (359 pag.)WO2015/187089; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 89856-44-0 ,Some common heterocyclic compound, 89856-44-0, molecular formula is C7H9BrN2, 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.

General procedure: A mixture of aromatic aldehyde (1mmol), amidine (1mmol) and isocyanide (1mmol) was taken in 2 mL acetonitrile. Then, the catalyst bromodimethylsulfonium bromide (0.022 g, 0.1mmol) was added into it and the reaction mixture was kept for stirring at room temperature till the completion of the reaction as indicated by TLC. The solid product came out slowly which was filtered through a Buchner funnel and the solid precipitate was washed with acetonitrile. Finally it was dried under reduced pressure.

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. 89856-44-0, 5-Bromo-4,6-dimethylpyridin-2-amine, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Khan, Abu T.; Sidick Basha; Lal, Mohan; Tetrahedron Letters; vol. 53; 17; (2012); p. 2211 – 2217;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 1000342-71-1, Adding some certain compound to certain chemical reactions, such as: 1000342-71-1, name is 6-Bromo-1H-pyrrolo[3,2-c]pyridine,molecular formula is C7H5BrN2, 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 1000342-71-1.

a) Preparation of intermediate 79A stirred solution of 6-bromo-5-azaindole (3.00 g, 15.2 mmol) in DMF (30 ml) at ambient temperature was treated with powdered potassium hydroxide (3.42 g, 60.9 mmol). After stirring for 15 minutes, iodine (4.25 g, 16.74 mmol) was added and the resulting mixture was stirred for 18 hours. The mixture was concentrated in vacuo and the residue triturated with water to afford the desired product as a cream solid (5.06 g, 100%).LCMS (Method C): Rt= 2.92 min, m/z [M+H]+= 322/324

According to the analysis of related databases, 1000342-71-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; JANSSEN PHARMACEUTICA NV; HYND, George; TISSELLI, Patrizia; CLARK, David, Edward; KULAGOWSKI, Janusz, Jozef; MACLEOD, Calum; MANN, Samuel, Edward; PANCHAL, Terry, Aaron; PRICE, Stephen, Colin; MONTANA, John, Gary; WO2015/44267; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 92914-74-4, name is Isoxazolo[5,4-b]pyridin-3-amine. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 92914-74-4

General procedure: To a solution of 3-aminoisoxazolo[5,4-b]pyridine(1) (1.35 g, 0.01 mol) in tetrahydrofurane (100mL) a few drops of pyridine and benzoyl chloride or4-bromobenzoyl chloride or 4-chlorobenzoyl chloridewas added. The reaction mixture was heatedunder reflux while being stirred in the microwavereactor in an aluminum bath at 60-65OC for 15 min.(3 5 min. with 5 min. breaks) at microwave powerP = 240 W. The solvent was removed under reducedpressure. The residue obtained was triturated withwater, filtered, dried and crystallized from ethanol.

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 92914-74-4, Isoxazolo[5,4-b]pyridin-3-amine.

Reference:
Article; Por?ba, Krystyna; Pawlik, Krzysztof; Rembacz, Krzysztof P.; Kurowska, Ewa; Matuszyk, Janusz; D?ugosz, Anna; Acta poloniae pharmaceutica; vol. 72; 4; (2015); p. 727 – 735;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 1215387-58-8, 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. 1215387-58-8, name is 5-Bromo-1H-pyrrolo[2,3-c]pyridine, molecular formula is C7H5BrN2, 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.

A stirred solution of 5-bromo-lH-pyrrolo[2,3-c]pyridine (2.22 g, 11.3 mmol) in DMF (30 ml) at ambient temperature was treated with potassium hydroxide (2.53 g, 45.1 mmol). After 10 minutes, iodine (3.15 g, 12.4 mmol) was added and the resulting mixture was stirred for 2 hours. The mixture was diluted with water and extracted with EtOAc. The organic phase was washed with brine, dried over Na2S04 and concentrated in vacuo. The residue was triturated with water, filtered and dried in vacuo to afford the desired product as an orange solid (3.39 g, 93%). LCMS (Method C): Rt= 3.14 min, m/z [M+H]+ = 323/325.

According to the analysis of related databases, 1215387-58-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; JANSSEN PHARMACEUTICA NV; HYND, George; TISSELLI, Patrizia; MACLEOD, Calum; MANN, Samuel, Edward; MONTANA, John, Gary; PRICE, Stephen, Colin; (91 pag.)WO2016/62789; (2016); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 571189-16-7, name is tert-Butyl 4-(6-nitropyridin-3-yl)piperazine-1-carboxylate. This compound has unique chemical properties. The synthetic route is as follows. category: pyridine-derivatives

A 500-mL bottle was purged with nitrogen and charged with 115a (3.1 g, 10 mmol), 10% palladium on carbon (50% wet, 1.0 g) and ethanol (100 mL). It was evacuated, charged with hydrogen gas, and stirred for 16 h at room temperature. The hydrogen was then evacuated and nitrogen was charged into the bottle. The catalyst was removed by filtration through a pad of Celite and the filtrate concentrated under reduced pressure to afford 115b (2.7 g, 97%). MS: [M+H]+279

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 571189-16-7, tert-Butyl 4-(6-nitropyridin-3-yl)piperazine-1-carboxylate.

Reference:
Patent; GENENTECH, INC.; Crawford, James John; Ortwine, Daniel Fred; Young, Wendy B.; US2013/116262; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 13466-38-1 ,Some common heterocyclic compound, 13466-38-1, molecular formula is C5H4BrNO, 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 stirred solution of 5-bromopyridin-2-ol (10 g, 57.5 mmol) in anhydrous THF (200 ml) at RT was added hydroxypivalic acid methyl ester (9.16 ml, 71.8 mmol).Triphenylphosphine (18.8 g, 71.8 mmol) was then added followed by dropwise addition ofdiisopropyl azodicarboxylate (14.1 ml, 71.8 mmol) at OoC. The reaction was then heated to 55C and allowed to stir at this temperature over night. The reaction mixture was concentrated. The residue was treated with EtOAc (70 ml) and then Hexane (70 ml), the solid was filtered off. The filtrate was concentrated, separated by MPLC (10-100% EtoAC in hexane) to give methyl 3-(5-bromopyridin-2-yloxy)-2,2-dimethylpropanoate (9.94 g). LC-MS (ES, mlz) C11H14BrNO3: 287; Found: 288 [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. 13466-38-1, 5-Bromopyridin-2-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MERCK SHARP & DOHME CORP.; DEVITA, Robert, J.; YU, Yang; LIU, Jian; HE, Shuwen; KRIKORIAN, Arto, D.; MILLER, Daniel, J.; WU, Zhicai; YANG, Ginger Xu-Qiang; HONG, Quingmei; LAI, Zhong; ZORN, Nicolas; TING, Pauline, C.; WO2013/130370; (2013); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem