Tag: M.W:100-200

Electric Literature of 19337-97-4, Adding some certain compound to certain chemical reactions, such as: 19337-97-4, name is trans-3-(3-Pyridyl)acrylic acid,molecular formula is C8H7NO2, 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 19337-97-4.

General procedure: To a mixture of (E)-3-(pyridin-3-yl)acrylic acid (37 mg, 0.25 mmol) in DMF (2 mL) was added EDCI (78 mg, 0.41mmol), HOBt (41 mg, 0.31 mmol), triethylamine (0.06mL, 0.41mmol), and compound 40a (65 mg, 0.2 mmol), and the reaction mixture was stirred for 4 h at room temperature. DMF was evaporated under reduced pressure. The residue was extracted with ethyl acetate (4 mL ¡Á 3). The combined organic layers were washed with saturated aqueous NaHCO3 solution, saturated aqueous NH4Cl solution and brine, dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The resulting mixture was purified by silica column chromatography to give the target compound 19 as white solid (45 mg, 50%).

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. 19337-97-4, trans-3-(3-Pyridyl)acrylic acid, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Zhang, Kuojun; Ni, Yong; Chen, Jiaxuan; Tu, Zhengchao; Wu, Xiaoxing; Chen, Dong; Yao, Hequan; Jiang, Sheng; Bioorganic and Medicinal Chemistry Letters; vol. 29; 12; (2019); p. 1502 – 1506;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 56026-36-9, 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.56026-36-9, name is Methyl 6-(hydroxymethyl)nicotinate, molecular formula is C8H9NO3, molecular weight is 167.16, as common compound, the synthetic route is as follows.

Dissolving methyl 6-(hydroxymethyl)nicotinate in DCM (10 mL).Cool to 0 C,Triethylamine (2.43 g, 12 mmol) was added in sequenceAnd methanesulfonyl chloride (2.06 g, 18 mmol),Slowly warm to room temperature and react overnight.TLC monitors the reaction completely,Add saturated aqueous ammonium chloride solution (5 mL),Liquid separation,The aqueous phase was extracted with DCM (3¡Á10 mL).Combine the organic phase,Washed (2 ¡Á 5mL),Dry over anhydrous sodium sulfate,filter,Concentrated6-((((methylsulfonyl)oxy)methyl)methyl nicotinate(3.2g crude).

The chemical industry reduces the impact on the environment during synthesis 56026-36-9, I believe this compound will play a more active role in future production and life.

Reference:
Patent; Nanjing Yaojie Good Health Biological Technology Co., Ltd.; Wu Yongqian; Wang Lin; Yang Xiaoju; Tian Yuwei; (46 pag.)CN108341819; (2018); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 101990-73-2, 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. 101990-73-2, name is 2-Chloro-4-(chloromethyl)pyridine, molecular formula is C6H5Cl2N, 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 mixture of 2-chloro-4-((5-methyl-3-(5- phenylfuran-2-yl)-lH-l,2,4-triazol-l-yl) methyl)pyridine and 2-chloro-4-((3- methyl-5-(5-phenylfuran-2-yl)-lH-l,2,4-triazol-l -yl)methyl)pyridine (100 mg, 0.3 mmol) was treated with 1-methylpiperazine (280 mg, 3 mmol) in DIEA (10 ml), and refluxed overnight. The mixture was cooled, concentrated, treated with H20 (30 mL) and extracted with EtOAc (3 x 30 mL). The combined organic layers were washed with H20 (1 x 10 mL) and brine (1 x 10 mL), dried over Na2S04, filtered, and concentrated to afford the crude product, which was purified by prep-HPLC (Mobile phase: A = 0.1% NH4OH/H20, B = MeCN; Gradient: B = 60%-95% in 18 min; Column: XBridge (C18, 5um, 30mm x 150mm) to give l-methyl-4-(4-((5- methyl-3-(5-phenylfuran-2-yl)-lH-l,2,4-triazol-l-yl)methyl)pyridin-2-yl)piperazine as a yellow solid (66 mg, 53%) and l-methyl-4-(4-((3-methyl-5-(5-phenylfuran-2- yl)-lH-l,2,4-triazol-l-yl)methyl)pyridin-2-yl)piperazine as a yellow solid (42 mg, 34%). For l-methyl-4-(4-((5-methyl-3-(5-phenylfuran-2-yl)-lH-l,2,4-triazol-l-yl)methyl) pyridin-2-yl)piperazine: MS (ES+) C24H26N60 requires: 414, found: 415 [M+H]+. *H NMR (500 MHz, CDC13) delta 8.14 (d, 7 = 5.1 Hz, 1H), 7.89 – 7.72 (m, 2H), 7.39(t, / = 7.8 Hz, 2H), 7.28 (td, / = 7.4, 1.3 Hz, 1H), 7.04 (d, / = 3.5 Hz, 1H), 6.76 (d, J = 3.5 Hz, 1H), 6.44 – 6.26 (m, 2H), 5.26 (s, 2H), 3.53 (t, J = 5.0 Hz, 4H), 2.48 (t, / = 5.1 Hz, 4H), 2.44 (s, 3H), 2.32 (s, 3H). [0250] For l-methyl-4-(4-((3-methyl-5-(5-phenylfuran-2-yl)-lH-l,2,4-triazol- l-yl)methyl) pyridin-2-yl)piperazine: MS (ES+) C24H26N6O requires: 414, found: 415 [M+H]+. *H NMR (500 MHz, CDC13) delta 8.12 (d, / = 5.1 Hz, 1H), 7.63 – 7.55 (m, 2H), 7.38 (t, 7 = 7.6 Hz, 2H), 7.30 (dd, / = 14.4, 6.9 Hz, 1H), 7.11 (d, 7 = 3.5 Hz, 1H), 6.77 (d, / = 3.6 Hz, 1H), 6.51 – 6.40 (m, 2H), 5.60 (s, 2H), 3.46 (t, / = 5.1 Hz, 4H), 2.45 (s, 3H), 2.43 (t, / = 5.1 Hz, 4H), 2.30 (s, 3H).

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 101990-73-2, 2-Chloro-4-(chloromethyl)pyridine.

Reference:
Patent; JONES, Philip; DIFRANCESCO, Maria, Emilia; PETROCCHI, Alessia; CARROLL, Christopher, L.; MARSZALEK, Joe; CZAKO, Barbara; JOHNSON, Ryan; THEROFF, Jay; WO2014/31936; (2014); A2;,
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. 13534-99-1, name is 2-Amino-3-bromopyridine. This compound has unique chemical properties. The synthetic route is as follows. Formula: C5H5BrN2

Ethyl isocyanatoformate (52.5?g, 397?mmol) is added dropwise at 5?C to a solution of 2-amino-3-bromopyridine (33a) (66?g, 378?mmol) in DCM (660?mL). After stirring for 16?h at RT the reaction mixture is concentrated under reduced pressure to give crude product, which is washed with PE and dried. Yield: 105?g (87%). LCMS (ESI+) calculated for C9H10BrN3O2S [M+H]+ m/z 303.9755, found 304.0. 1H NMR (400?MHz, (CD3)2SO) delta 11.43 (br s, 2H), 8.49 (dd, J?=?4.6, 1.5?Hz, 1H), 8.17 (dd, J?=?7.9, 1.5?Hz, 1H), 7.33 (dd, J?=?7.9, 4.7?Hz, 1H), 4.23 (q, J?=?7.1?Hz, 2H), 1.27 (t, J?=?7.1?Hz, 3H). TLC (silica gel, PE/EE 3:1): Rf?=?0.4.fx8

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, 13534-99-1, 2-Amino-3-bromopyridine.

Reference:
Article; Gerlach, Kai; Hobson, Scott; Eickmeier, Christian; Gross, Ulrike; Braun, Clemens; Sieger, Peter; Garneau, Michel; Hoerer, Stefan; Heine, Niklas; Bioorganic and Medicinal Chemistry; vol. 26; 12; (2018); p. 3227 – 3241;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 1214337-05-9, Methyl 6-chloro-5-fluoropicolinate, 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, category: pyridine-derivatives, blongs to pyridine-derivatives compound. category: pyridine-derivatives

Step 3: Synthesis of 6-chloro-5-fluoropicolinic acid [514] Methyl 6-chloro-5-fluoropicolinate (1.35 g, 7.095 mmol) was dissolved in THF:H20 = 6:1 (42 ml), followed by addition of lithium hydroxide monohydrate (596 mg, 14.19 mmol), and then the resulting mixture was stirred at room temperature for 3 hours. The resulting reaction liquid was concentrated under reduced pressure, dissolved by addition of distilled water (20 ml), acidified by slow addition of 1N aqueous HCl solution, and then extracted with 5% MeOH/MC (30 ml x 2). The organic layer was dried over anhydrous sodium sulfate, followed by filtration, concentration, and vacuum drying, to obtain 1.04 g of white solid (80%). [515]

The synthetic route of 1214337-05-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SK Chemicals Co.,Ltd.; RYU, Je Ho; KIM, Shin Ae; RYU, Keun Ho; KIM, Jae Sun; KIM, Nam Ho; HAN, Hye Young; KIM, Yong Hyuk; YOUN, Won-No; LEE, Yoon-Jung; SON, Hyun Joo; LEE, Bong-yong; PARK, Sung Hoon; LEE, Ju Young; LEE, Hyun Jung; JUNG, Hoe Chul; SHIN, Young Ah; LEE, Jung A; LEE, Bo Ram; SA, Joon Ho; WO2011/139107; (2011); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Application of 174610-12-9 ,Some common heterocyclic compound, 174610-12-9, molecular formula is C7H7N3, 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.

Intermediate 5 (200 mg, 0.450 mmol) , 1H-pyrrolo [2, 3-c] pyridin-5-amine (120 mg, 0.90 mmol) , palladium (II) acetate (50 mg, 0.225 mmol) , xantphos (196 mg, 0.340 mmol) and potassium carbonate (124 mg, 0.90 mmol) in 1, 4-dioxane (10 mL) under heating at 100 through microwave irradiation for 1 hour under N2 atmosphere. LC-MS: m/z 539.2 (M+H) +.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,174610-12-9, its application will become more common.

Reference:
Patent; AGIOS PHARMACEUTICALS, INC.; TRAVINS, Jeremy, M.; KONTEATIS, Zenon, D.; SUI, Zhihua; YE, Zhixiong; (199 pag.)WO2018/39972; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 62068-78-4, Adding some certain compound to certain chemical reactions, such as: 62068-78-4, name is 2,6-Dichloronicotinamide,molecular formula is C6H4Cl2N2O, 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 62068-78-4.

6-Chloro-2-morpholin-4-yl-nicotinamide (2) (1048) Refer to synthesis of (D46) for preparation of 2,6-dichloro-nicotinamide (1). A sealed reaction vessel containing 2,6-dichloro-nicotinamide (1) (1.85 g, 9.70 mmol) and morpholine (1.69 mL, 19.4 mmol) in anhydrous dimethylformamide (20 mL) was heated to 50 C. for 2.5 h. The reaction was then cooled to room temperature and diluted with 0.1 M NaOH (600 mL) and extracted with ethyl acetate (3¡Á500 mL). All organics were combined, dried over Na2SO4, filtered and concentrated to give the title compound (2.49 g) as an orange oil, which later solidified upon standing. Compound 6-Chloro-2-morpholin-4-yl-nicotinamide (2) was carried forward without further purification. 1H NMR 400 MHz (d6-DMSO) delta7.89 (br s, 1H), 7.67 (d, J=7.8 Hz, 1H), 7.56 (br s, 1H), 6.88 (d, J=7.8 Hz, 1H), 3.67 (br t, J=4.7 Hz, 4H), 3.31 (br t, J=4.7 Hz, 4H).

According to the analysis of related databases, 62068-78-4, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ANACOR PHARMACEUTICALS, INC.; AKAMA, Tsutomu; US2015/291629; (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. 5398-44-7, name is 2,6-Dichloroisonicotinic acid. This compound has unique chemical properties. The synthetic route is as follows. Quality Control of 2,6-Dichloroisonicotinic acid

a) 2,6-Dichloro-isonicotinic acid (11.2 g, 57.1 mmol) is suspended in toluene (150 mL) at 80 C. and then treated with N,N-dimethylformamide di-tert.-butyl acetal (50 mL, 209 mmol). The dark mixture is stirred at 80 C. for 12 h, then at rt for 16 h. The dark solution is diluted with diethyl ether (400 mL), washed with sat. aq. NaHCO3 solution (3*100 mL), dried over Na2SO4, filtered and concentrated. The crude product is purified by MPLC on silica gel eluting with a gradient of EA in heptane to give 2,6-dichloro-isonicotinic acid tert.-butyl ester (14.2 g) as a brownish oil which slowly solidifies; LC-MS: tR=1.05 min; 1H NMR (D6-DMSO): delta 1.56 (s, 9H), 7.85 (s, 2H).

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, 5398-44-7, 2,6-Dichloroisonicotinic acid.

Reference:
Patent; Bolli, Martin; Lescop, Cyrille; Mathys, Boris; Mueller, Claus; Nayler, Oliver; Steiner, Beat; Velker, Jorg; US2011/212998; (2011); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 3731-52-0, 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.3731-52-0, name is Pyridin-3-ylmethanamine, molecular formula is C6H8N2, molecular weight is 108.14, as common compound, the synthetic route is as follows.

PREPARATION 19; Preparation of 2-bromo-4-methyl-vV-(pyridin-3-ylmethyl)thiazole-5-carboxamide; To a solution of 2-bromo-4-methylthiazole-5-carboxylic acid ( 10.00 g, 45.00 mmol) and 4-methylmorpholine (6.5 mL, 59.0 mmol) in tetrahydrofuran ( 150 mL) was added isobutyl chloroformate (6.5 mL, 49.6 mmol) at 0 0C. The resulting mixture was stirred at room temperature for 1 hour and 3-(aminomethyl)pyridine (5.2 mL, 51.4 mmol) was added. The reaction mixture was stirred at ambient temperature for 17 hours, and then concentrated in vacuo. The residue was purified by column chromatography to afford 2-bromo-4-methyl-jV-(pyridin-3-ylmethyl)thiazole-5-carboxamide in 52% yield (7.3 g): 1H NMR (300 MHz, CDCl3) delta 8.39-8.80 (m, 2H), 7.80-7.72 (m, IH), 7.40-7.35 (m, I H), 6.47 (br s, I H), 4.60 (d, J= 6.0 Hz, 2H), 2.64 (s, 3H); MS (ES+) we 312.1 (M + 1 ), 314.1 (M + 1 ).

Statistics shows that 3731-52-0 is playing an increasingly important role. we look forward to future research findings about Pyridin-3-ylmethanamine.

Reference:
Patent; NOVARTIS AG; XENON PHARMACEUTICALS INC.; WO2008/127349; (2008); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 867012-70-2, 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.867012-70-2, name is 6-Methoxy-5-methylpyridin-3-amine, molecular formula is C7H10N2O, molecular weight is 138.17, as common compound, the synthetic route is as follows.

6′-Methoxy-5′-methyl-2,3,5,6-tetrahydro-[1,3′]bipyridinyl-4-one A slurry of iodide salt 1-benzyl-1-methyl-4-oxo-piperidinium (Ref: Tortolani, R.; Org. Lett., Vol. 1, No 8, 1999) (3.61 g, 10.86 mmol) in water (10 mL) was added slowly to a refluxing solution of 2-methoxy-5-amino-3-picolin (1 g, 7.24 mmol) and potassium carbonate (0.140 g, 1.013 mmol) in ethanol (20 mL). The reaction mixture was heated to reflux for an additional 3 h. The reaction mixture was cooled to rt and partitioned between CH2Cl2 and water. The organic layer was separated and washed with an addition portion of CH2Cl2. The combined organic layers were washed with brine, dried over sodium sulfate, filtered and concentrated to give the crude product which was purified by flash-chromatography on silica gel (heptane/ethylacetate 1/1) to afford 6′-methoxy-5′-methyl-2,3,5,6-tetrahydro-[1,3′]bipyridinyl-4-one (1.15 g, yield 72%) as a light yellow gum. 1H-NMR (400 MHz, DMSO, 298K) delta ppm 2.12 (s, 3H) 2.42 (t, 4H) 3.46 (t, 4H) 3.80 (s, 3H) 7.40 (d, 1H) 7.71 (d, 1H). LCMS: [M+H]+=221.1, Rt(3)=1.41 min.

The chemical industry reduces the impact on the environment during synthesis 867012-70-2, I believe this compound will play a more active role in future production and life.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; US2015/342951; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem