Tag: M.W:200-300

Related Products of 33097-11-9, 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.33097-11-9, name is 4,6-Dichloro-2-(methylthio)pyrimidine-5-carbaldehyde, molecular formula is C6H4Cl2N2OS, molecular weight is 223.0798, as common compound, the synthetic route is as follows.

Example 1; 4-Chloro-2-methylsulfanyl-8-(4-trifluoromethyl-phenyl)-8H- A solution of 4,<5-dichloro-2-methylsulfanyl-pyrimidine-5~ carbaldehyde (LOg, 4.5mmol) and Et3N (1.26mL, 9.0mmol) in TEtaF (25mL) was mixed with 4~trifluoromethylaniline (0.62mL, 4.9mmol). The resultant mixture was stirred at room temperature for 2 hours before bis(2,2,2-trifluoroethyl)(methoxycarbonylmethyl)- EPO phosphonate (0.95mL, 4.5mmol) was added. After stirring at room temperature for additional 12 hours, the mixture was diluted with dichloromethane (5OmL) and washed with H2O (2 x 25mL). The organic layer was dried over Na2SO4, filtered and concentrated. This crude product was further purified by washing with a mixture of THF / Hexane (1 : 3, 2 x 1OmL) to provide the title compound (1.17g, 70%): MS (ES) m/z 372 (M+H)+; 1H-NMR(CDCl3) delta 2.18 (s, 3H), 6.79 (d, J= 9.8 Hz, IH), 7.40(d, J= 8.4 Hz, 2H), 7.83 (d, J= 8.4 Hz, 2H), 8.03 (d, J= 9.8 Hz, IH).

Statistics shows that 33097-11-9 is playing an increasingly important role. we look forward to future research findings about 4,6-Dichloro-2-(methylthio)pyrimidine-5-carbaldehyde.

Reference:
Patent; GLAXO GROUP LIMITED; WO2006/104917; (2006); A2;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 50270-27-4, Adding some certain compound to certain chemical reactions, such as: 50270-27-4, name is 2,4,6-Trichloropyrimidine-5-carbaldehyde,molecular formula is C5HCl3N2O, 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 50270-27-4.

To a stirred solution of 2 4 6-trichloropyrimidine-5-carbaldehyde (18.5 g 88.1 mmol) in EtOH (250 mL) was added methyl hydrazine (6.8 g 88.1 mmol 60in water) and Et3N (26.7 g 264.4 mmol) at-70 and stirred for 30 min before it was allowed to warm up to 0 and stirred for another 2 h. After TLC (petroleum etherEtOAc 51) showed that the reaction was completed the mixture solution was concentrated in vacuo at room temperature. EtOAc (200 mL) was added and the resulting solution was washed washed with saturated aqueous NaHCO3solution and brine. The organic layer was dried over anhydrous Na2SO4 filtered and concentrated in vaouoto give a crude product which was purified by silica gel flash chomatography (petroleum etherEtOAc 201) to afford title compound (8 g 44.9yield) as a white solid. MS 203.2 [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. 50270-27-4, 2,4,6-Trichloropyrimidine-5-carbaldehyde, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; SAVIRA PHARMACEUTICALS GMBH; EUROPEAN MOLECULAR BIOLOGY LABORATORY; TAN, Xuefei; ZBINDEN, Katrin Groebke; KUHN, Bernd; WANG, Lisha; LIU, Yongfu; WU, Jun; SHEN, Hong; SHI, Tianlai; (174 pag.)WO2017/133664; (2017); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 7627-44-3, Adding some certain compound to certain chemical reactions, such as: 7627-44-3, name is 2,4-Dichloro-5-(iodomethyl)pyrimidine,molecular formula is C5H3Cl2IN2, 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 7627-44-3.

A mixture of 2,4-dichloro-5-(iodomethyl)pyrimidine (1.50 g, 5.19 mmol), 2,6-difluoro-3,5-dimethoxyaniline (1.08 g, 5.71 mmol) in N,N-diisopropylethylamine (4 mL) was stirred at 80° C. for 2 hours. After being cooled to room temperature, the reaction mixture was concentrated under reduced pressure. The residue was purified on silica gel (eluting with 0-40percent EtOAc in DCM) to give 1.70 g desired product. LCMS calculated for C1-3H12Cl2F2N3O2[M+H]+ m/z: 350.0. Found: 350.0.

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. 7627-44-3, 2,4-Dichloro-5-(iodomethyl)pyrimidine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Incyte Corporation; Wu, Liangxing; Lu, Liang; Qian, Ding-Quan; Shen, Bo; Yao, Wenqing; (40 pag.)US2016/115164; (2016); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 1209459-32-4, name is 4-(2-Bromopyrimidin-4-yl)morpholine. A new synthetic method of this compound is introduced below., category: pyrimidines

To a microwave vi charged with (S)-2-(3,4-dimethylpiperazin-l-yl)-4-fluoro-5-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)aniline (0.143, 0.410 mmol), 4-(2-bromopyrimidin-4-yl)morpholine (0.150 g ,0.615 mmol), K3P04 (0.174 g, 0.819 mmol) was added dioxane (2 ml) and water (2 ml) and the vial was flushed with nitrogen. Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) (0.0087 g, 0.030 mmol) was added, the vial was sealed, and the mixture heated in a microwave reactor to 110C for 30 minutes. The crude mixture was concentrated onto celite and purified using reverse phase silca gel column chromatography (Water: AcCN gradient 0-100%). The product was dried under vacuum to give the title compound as a brown solid (0.097 g, 61 %); LCMS [M + H]+ 387

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, 1209459-32-4, 4-(2-Bromopyrimidin-4-yl)morpholine.

Reference:
Patent; ONTARIO INSTITUTE FOR CANCER RESEARCH (OICR); AL-AWAR, Rima; ZEPEDA-VELAZQUEZ, Carlos Armando; PODA, Gennady; ISAAC, Methvin; UEHLING, David; WILSON, Brian; JOSEPH, Babu; LIU, Yong; SUBRAMANIAN, Pandiaraju; MAMAI, Ahmed; PRAKESCH, Michael; STILLE, Julia Kathleen; (1053 pag.)WO2017/147700; (2017); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 26830-94-4, 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.26830-94-4, name is 2,6-Dichloropyrimidine-4-carbonyl chloride, molecular formula is C5HCl3N2O, molecular weight is 211.4332, as common compound, the synthetic route is as follows.

10304] To a solution of Compound 2 (26.13 g, 123.6 mmol) in Et20 (500 mL) was added a mixture of 0.5M NH3 in dioxane (250 mL, 125 mmol) and DIPEA (22 mL, 126 mmol) dropwise over 50 mi Afier stirring at RT overnight the reaction mixture was concentrated in vacuo to give a residue that was purified by flash chromatography (5i02, 10-50% EtOAc/hexanes). The product obtained was triturated with 10 mL 10% EtOAc/hexanes and filtered to give Compound 3 as an orange crystalline solid (9.743 g). Yield 41%. ?H NMR (400MHz, DMSO-d5): oe 8.40 (brs, iH), 8.i6 (br s, iH), 8.10 (s, iH). LC/MS: mlz=192 [M+H] (Calc: 191).

Statistics shows that 26830-94-4 is playing an increasingly important role. we look forward to future research findings about 2,6-Dichloropyrimidine-4-carbonyl chloride.

Reference:
Patent; Purdue Pharma L.P.; Lynch, Stephen M.; Yao, Jiangchao; Park, Jae Hyun; Tafesse, Laykea; US2015/284383; (2015); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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. 187035-79-6, name is Ethyl 2-chloro-4-(trifluoromethyl)pyrimidine-5-carboxylate, the common compound, a new synthetic route is introduced below. Recommanded Product: 187035-79-6

To a solution of l-isopropyl-7-(methylsulfonyl)-l,2,3,4- tetrahydrobenzo[4,5]imidazo[l,2-a]pyrazine (5.0 mg, 0.02 mmol, prepared according to example 1) in DMSO (1 mL) was added ethyl 2-chloro-4-(trifluoromethyl)pyrimidine-5- carboxylate (8.7 mg, 0.03 mmol), DIEA (6.6 mg, 0.05 mmol) under N2. The mixture was stirred at 100 C for 2 h. The mixture was diluted with water (5 mL) and extracted with EtOAc (3 x5 mL). The combined organic layers were washed with brine (5 mL), dried over anhydrous Na2S04, filtered, concentrated and then purified by preparative TLC to afford a racemic mixture of ethyl 2-(l-isopropyl-7-(methylsulfonyl)-3,4- dihydrobenzo[4,5]imidazo[l,2-a]pyrazin-2(lH)-yl)-4-(trifluoromethyl)pyrimidine-5- carboxylate (5.6 mg, 64% yield) as a white solid. LC- m/z 512.2 [M+H]+. 1H NMR (CDC13 400MHz): delta 8.98 (s, 1H), 8.07-7.98 (m, 1H), 7.93-7.83 (m, 2H), 6.16 (d, J = 6.4 Hz, 1H), 5.53-5.41 (m, 1H), 4.43-4.32 (m, 3H), 4.28-4.16 (m, 1H), 3.92-3.79 (m, 1H), 3.09 (s, 3H), 2.61-2.46 (m, 1H), 1.40 (s, 3H), 1.38-1.32 (m, 3H), 1.08 (d, J = 6.8 Hz, 3H).

The synthetic route of 187035-79-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; VITAE PHARMACEUTICALS, INC.; DONG, Chengguo; FAN, Yi; LEFTHERIS, Katerina; LOTESTA, Stephen; SINGH, Suresh, B.; TICE, Colin; ZHAO, Wei; ZHENG, Yajun; ZHUANG, Linghang; WO2013/138568; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Related Products of 26830-94-4, 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. 26830-94-4, name is 2,6-Dichloropyrimidine-4-carbonyl chloride, molecular formula is C5HCl3N2O, 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.

To a solution of Compound 2 (26.13 g, 123.6 mmol) in Et20 (500 mL) was added a mixture of 0.5 M NH3 in dioxane (250 mL, 125 mmol) and DIPEA (22 mL, 126 mmol) dropwise over 50 min. After stirring at RT overnight the reaction mixture was concentrated in vacuo to give a residue that was purified by flash chromatography (Si02, 10-50% EtOAc/hexanes). The product obtained was triturated with 10 mL 10% EtOAc/hexanes and filtered to give 9.74 g (41%) of Compound 3 as an orange crystalline solid. ]H NMR (400 MHz, DMSO-d6): delta 8.40 (br s, 1H), 8.16 (br s, 1H), 8.10 (s, 1H). LC/MS: m/z= 192 [M+H]+ (Calc: 191).

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 26830-94-4, 2,6-Dichloropyrimidine-4-carbonyl chloride.

Reference:
Patent; PURDUE PHARMA L.P.; LYNCH, Stephen, M.; WO2015/112801; (2015); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Application of 55084-66-7, 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 55084-66-7, name is 4-Chloro-2-(methylthio)pyrimidine-5-carbonyl chloride. This compound has unique chemical properties. The synthetic route is as follows.

A mixture of 4-chloro-2- (methylthio) pyrimidine-5-carbonyl chloride (35 g, 157 mmol) and Amberlyst A21 (6 g, 149 mmol) in ethyl acetate (250 mL) was heated to 40 C followed by the dropwise addition of a solution of 2,6-dichloroaniline (24.21 g, 149 mmol) in ethyl acetate (250mL) . The reaction mixture was heated at 40 C under a nitrogen atmosphere overnight. The resulting suspension was allowed to cool to room temperature and filtered. The isolated solids were taken up in hot tetrahydrofuran (100 mL) and filtered, repeating the process with theundissolved solid a further two times until most of the solid was dissolved. The combined filtrates were concentrated to dryness under reduced pressure to give a pale yellow solid. This was slurried in dichloromethane (100 mL) to give the title compound as a white solid(22.1 g, 42%) . ?H NMR (300 MHz, DMSO-d6) : 3 10.71 (s, 1H),8.82 (s, 1H), 7.62 (d, 2H), 7.43 (t, 1H), 2.60 (s, 3H) LCMS (Method C) : = 1.46 mm, m/z = 348 [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 55084-66-7, 4-Chloro-2-(methylthio)pyrimidine-5-carbonyl chloride.

Reference:
Patent; ALMAC DISCOVERY LIMITED; HARRISON, Timothy; TREVITT, Graham; HEWITT, Peter Robin; O’DOWD, Colin Roderick; BURKAMP, Frank; WILKINSON, Andrew John; SHEPHERD, Steven D.; MIEL, Hugues; WO2015/92431; (2015); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Related Products of 13544-44-0, 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. 13544-44-0, name is 2,4-Dichloro-5-iodopyrimidine, molecular formula is C4HCl2IN2, 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.

2) (R)-2-(2-chloro-5-iodopyrimidine-4-ylamino)propan-1-ol:; In the reaction of 2,4-dichloro-5-iodopyrimidine (3.0 g, 10.9 mmol) with (R)-2- amino-1-propanol (884 mg, 11.8 mmol) according to procedure 2, the desired product is obtained in 88 % yield (1.6 g) after chromatographic purification (silica gel, dichloromethane/methanol (0% to 20% methanol)).1H-NMR (300 MHz1 DMSO-D6): 5 1.10 (d, 3H), 3.35-3.45 (m, 2H), 4.05-4.15 (m, 1 H), 4.86 (t, 1 H), 6.56 (d, 1 H), 8.30 (s, 1 H).; Procedure 2 – Introduction of amine in the 4 position of the pyrimidine:; 5-bromo-2,4-dichloro-pyrimidine or 2,4-dichloro-5-iodo-pyrimidine (1.0 equiv.) is dissolved in acetonitrile (62.0 equiv.) and treated with triethylamine (1.2 equiv.) and the amine component (1.1 equiv.). After 24 hours at room temperature, the mixture is diluted with ethyl acetate. The organic phase is washed with saturated sodium chloride solution, 10 % aqueous citric acid solution and saturated sodium hydrogen carbonate solution. After drying over sodium sulphate and removal of the solvent, the purification is effected by chromatography.The reaction of 5-bromo-2,4-dichloro-pyrimidine or 2,4-dichloro-5-iodo- pyrimidine with amines, alcohols or thiols is also described in: a) U. Lucking, M. Krger, R. Jautelat, G. Siemeister, WO 2005037800; b) U. Lucking, M. Krueger, R. Jautelat, O. Prien, G. Siemeister, A. Ernst, WO 2003076437; c) T. Brumby, R. Jautelat, O. Prien, M. Schafer, G. Siemeister, U. Lucking, C. Huwe, WO 2002096888).

According to the analysis of related databases, 13544-44-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; SCHERING AKTIENGESELLSCHAFT; WO2007/71455; (2007); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 22276-95-5, 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine, 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, Recommanded Product: 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine, blongs to pyrimidines compound. Recommanded Product: 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine

General Procedure 7 Step 2: Methyl 4-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate; To a solution of 5-bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine (15 g, 64.377 mmol) in THF (378 ml.) n-BuLi (1.4 M in hexanes, 96.56 ml_, 135.19 mmol) is added dropwise at -78 0C. The reaction solution is stirred for 30 min and then methyl chloroformate (4.73 ml_, 61.15 mmol) in THF is added at -78 0C and the reaction mixture is allowed to attain room temperature and is stirred for 3 h. The reaction is quenched with aq. NH4CI. The solvent is distilled off and the residual solution is extracted with EtOAc (3 x 300 ml_). The combined organic layer is washed with water (300 ml_), brine (300 ml_), dried over anhydrous Na2SO4 and concentrated in vacuo. The crude residue is purified by column chromatography to give methyl 4-chloro-7H- pyrrolo[2,3-d]pyrimidine-5-carboxylate as a pale yellow solid.1H-NMR (400 MHz, DMSO-d6): delta 13.3 (brs, 1 H), 8.69 (s, 1 H), 8.42 (s, 1 H), 3.82 (s, 1 H). ESI- MS (pos.): 21 1.8 (M+H).

The synthetic route of 22276-95-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NOVARTIS AG; CHEN, Yen Liang; DURAISWAMY, Jeyaraj; HALLER, Sarah; KEIM, Matthias; KONDREDDI, Ravinder Reddy; YIN, Zheng; WO2010/15643; (2010); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia