Tag: M.W:100-200

Related Products of 93366-88-2, Adding some certain compound to certain chemical reactions, such as: 93366-88-2, name is 7H-Pyrrolo[2,3-d]pyrimidin-2-amine,molecular formula is C6H6N4, 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 93366-88-2.

7H-pyrrolo[2,3-d]pyrimidin-2-amine (134 mg, 1.00 mmol), QC130 (381 mg, 1.29 mmol), potassium carbonate(415 mg, 3.00 mmol) and valine (23 mg, 0.2 mmol) It was added to an eggplant type flask, dimethyl sulfoxide wasadded, and the reaction solution was deoxidized. Copper iodide (19 mg, 0.1 mmol) was added and the reactionsolution was deoxygenated. Heat to 90C and stir for 16 hours. After the reaction was completed, it was cooledto room temperature, water and ethyl acetate were added, and the mixture was filtered over Celite. The targetcompound was obtained in an amount of 110 mg.

According to the analysis of related databases, 93366-88-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Chinese Academy Of Sciences Shanghai Pharmaceutical Institute; Zhao Yujun; Li Zhiqiang; Yan Ziqin; Li Jia; Zhou Yubo; Su Mingbo; Chen Zheng; (138 pag.)CN109810110; (2019); A;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 63200-54-4 , The common heterocyclic compound, 63200-54-4, name is 2,4-Dichloro-5H-pyrrolo[3,2-d]pyrimidine, molecular formula is C6H3Cl2N3, 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 2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine 18a (51.3 g) and 1.36 L of 1 N NaOH was stirred at 80 C overnight. The solution was subsequently chilled and adjusted to pH 6 with AcOH. The resulting precipitate was collected, washed with water and dried to afford 19a as solid (37.3 g, yield: 80.7%).

The synthetic route of 63200-54-4 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Xie, Hui; Zeng, Lili; Zeng, Shaogao; Lu, Xin; Zhang, Guicheng; Zhao, Xin; Cheng, Na; Tu, Zhengchao; Li, Zhiyuan; Xu, Hongjiang; Yang, Ling; Zhang, Xiquan; Huang, Min; Zhao, Junling; Hu, Wenhui; European Journal of Medicinal Chemistry; vol. 52; (2012); p. 205 – 212;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 939986-65-9, Adding some certain compound to certain chemical reactions, such as: 939986-65-9, name is 6-Chloropyrimidine-4-carbonitrile,molecular formula is C5H2ClN3, 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 939986-65-9.

A solution of 4-(hydroxymethyl)-1H-indazole 1 (233 mg, 1.57 mmol), 6-chloropyrimidine-4-carbonitrile (200 mg, 1.43 mmol), and DMF (4 mL) was added dropwise at RT to NaH (57 mg of a 60% dispersion in mineral oil, 1.43 mmol). The mixture was stirred at RT for 25 mm. The mixture was partitioned between aq HC1, brine, and EtOAc. The organic layer was separated, dried (Na2504), filtered, and concentrated under reduced pressure. The residue was purified (silica gel; eluting 0 to 100% EtOAc in hexanes), to afford compound 2 (162 mg, 45%) as a yellow solid. LCMS Mass: 252.0 (M+1).

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. 939986-65-9, 6-Chloropyrimidine-4-carbonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; PHARMAKEA, INC.; ROWBOTTOM, Martin, W.; HUTCHINSON, John, Howard; (185 pag.)WO2017/3862; (2017); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of 767-15-7, 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 767-15-7, name is 2-Amino-4,6-dimethylpyrimidine. This compound has unique chemical properties. The synthetic route is as follows.

General procedure: For the synthesis of 2, the solution of sulfurisocyanatidic chloride (7.2mmol) in 20mL toluene was added to the solution of 1 (6.0mmol) in 20mL toluene dropwise at room temperature. The reactant was heated to 140C and then the reaction proceeded for 18h under reflux. Subsequently, the mixture was cooled down to room temperature and remaining sulfurisocyanatidic chloride was removed under reduced pressure, together with the solvent. Without further purification, the resulting yellow oil 2 was dissolved in 10mL anhydrous acetonitrile and after that it was added slowly to 5mmol of 3, which was also dissolved in 10mL anhydrous acetonitrile beforehead in ice bath. After stirring for 24hat room temperature, acetonitrile was removed under reduced pressure and saturated sodium bicarbonate was added to product 4. Product 5 precipitated easily and it was further purified by recrystallization from petroleum ether/acetone in 1:1 ratio in high yields. 15% hydrochloric acid was added to aqueous solution of 5 under stirring and corresponding acidified product 4 precipitated out easily in high yields.

According to the analysis of related databases, 767-15-7, the application of this compound in the production field has become more and more popular.

Reference:
Article; Wu, Ren-Jun; Ren, Tongtong; Gao, Jie-Yu; Wang, Li; Yu, Qilin; Yao, Zheng; Song, Guo-Qing; Ruan, Wei-Bin; Niu, Cong-Wei; Song, Fu-Hang; Zhang, Li-Xin; Li, Mingchun; Wang, Jian-Guo; European Journal of Medicinal Chemistry; vol. 162; (2019); p. 348 – 363;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 347418-42-2, 4-Chloro-5-fluoropyrimidine, 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, Safety of 4-Chloro-5-fluoropyrimidine, blongs to pyrimidines compound. Safety of 4-Chloro-5-fluoropyrimidine

The compound 5 (1 mmol),The compound 4-chloro-5-fluoropyrimidine (1 mmol)Dissolved in NMP (10 mL)CuI (20 mmol%) was added,Pd (PPh3) 2Cl2 (5 mmol%),DIEA (5 mmol).Under nitrogen protection,60 reaction 12h.TCL monitoring reaction is complete,Extracted three times with ethyl acetate,Combine organic phase,Washed twice with saturated NaCl,Anhydrous Na2SO4 dry.Spin dry,Column chromatography gave compound 7r.

The synthetic route of 347418-42-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Second Military Medical University, PLA; Yantai Dongcheng Pharmaceutical Industry Group Co., Ltd.; Zhang, Dazhi; Jiang, Yuanying; Niting, Junhong; Cai, Zhan; Pang, Lei; Xie, Fei; Li, Ran; Han, Haibing; He, Yan; You, Shouyi; Yang, Zhenqiu; Qi, Dongqi; (36 pag.)CN106336383; (2017); A;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of 111196-81-7, 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.111196-81-7, name is 2-Chloro-5-ethylpyrimidine, molecular formula is C6H7ClN2, molecular weight is 142.59, as common compound, the synthetic route is as follows.

Step B: Preparation of 5-Ethyl-2-(4-(((lr,4r)-4-(2-fluoro-4- (methylsulfonyl)phenyl)cyclohexyloxy)methyl)piperidin-l-yl)pyrimidine (Compound 8).; A mixture of 4-(((lr,4r)-4-(2-fluoro-4- (methylsulfonyl)phenyl)cyclohexyloxy)methyl)piperidine hydrochloride (50.4 mg, 0.124 mmol), prepared in Step A above, 2-chloro-5-ethylpyrimidine (36 mu, 0.296 mmol), and triethylamine (52 mu, 0.373 mmol) in iPrOH (3 mL) was heated under microwave irradiation at 120 C for 2 h. The mixture was extracted with water and AcOEt. The organic phase was dried over MgS04, filtered, and concentrated. The residue was purified by silica gel flash column chromatography (hexane/ AcOEt gradient). Fractions containing the title compound (with 2- chloro-5-ethylpyrimidine as by product) were partly concentrated. The residue was treated with MTBE. Solid was filtered off, washed with additional MTBE, and dried under high vacuum to give the title compound (35.6 mg, 0.075 mmol, 60.3 % yield) as a white solid. Exact mass calculated for C25H34FN3O3S: 475.23, found: LCMS m/z = 476.2 [M+H]+; lU NMR (400 MHz, CDCI3) delta ppm 1.16-1.23 (m, 5H), 1.39-1.55 (m, 4H), 1.83-1.86 (m, 3H), 1.92-1.95 (m, 2H), 2.17-2.20 (m, 2H), 2.44 (q, = 7.6 Hz, 2H), 2.84-2.91 (m, 3H), 3.27 (s, 3H), 3.25-3.29 (m, 1H), 3.36 (d, = 6.1 Hz, 2H), 4.70-4.73 (m, 2H), 7.39-7.43 (m, 1H), 7.57-7.60 (m, 1H), 7.66-7.68 (m, 1H), 8.16 (s, 2H).

Statistics shows that 111196-81-7 is playing an increasingly important role. we look forward to future research findings about 2-Chloro-5-ethylpyrimidine.

Reference:
Patent; ARENA PHARMACEUTICALS, INC.; JONES, Robert M.; HAN, Sangdon; LEHMANN, Juerg; THORESEN, Lars; WO2012/135570; (2012); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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. 6328-58-1, name is 6-Methyl-2-(methylthio)-1H-pyrimidin-4-one. This compound has unique chemical properties. The synthetic route is as follows. name: 6-Methyl-2-(methylthio)-1H-pyrimidin-4-one

A mixture of the pyrimidone (324b; 437g), iodine (852.6g) and sodium hydroxide (134.2g) in water (2L) was heated to 80C for 15h. After cooling the reaction was neutralized with acetic acid and the solid collected to give the iodide (324c; 656g) as a light-brown solid. Used in the next step without purification.

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, 6328-58-1, 6-Methyl-2-(methylthio)-1H-pyrimidin-4-one.

Reference:
Patent; SCHERING CORPORATION; SOUTHERN RESEARCH INSTITUTE; ARASAPPAN, Ashok; NJOROGE, F., George; BENNETT, Frank; GIRIJAVALLABHAN, Vinay, M.; HUANG, Yuhua; HUELGAS, Regina; PIWINSKI, John, J.; SHIH, Neng-Yang; VERMA, Vishal; VELAZQUEZ, Francisco; VENKATRAMAN, Srikanth; KWONG, Cecil, D.; ANANTHAN, Subramaniam; CLARK, Jeremy; GENG, Feng; KEZAR, Hollis, S., III.; MADDRY, Joseph, A.; REYNOLDS, Robert, C.; ROYCHOWDHURY, Abhijit; SECRIST, John, A., III.; FOWLER, Anita, T.; WO2010/22121; (2010); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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.111196-81-7, name is 2-Chloro-5-ethylpyrimidine, molecular formula is C6H7ClN2, molecular weight is 142.59, as common compound, the synthetic route is as follows.Safety of 2-Chloro-5-ethylpyrimidine

Step 1. Preparation of 4-(5-ethylpyrimidin-2-yloxy)cyclohexanol To a stirred solution of cyclohexane-1,4-diol (2.03 g, 17.5 mmol) in DMF (17 mL) was added NaH (95% wt, 177 mg, 7.01 mmol) at 0 C. The mixture was stirred for 30 min at room temperature and 2-chloro-5-ethylpyrimidine (500 mg, 3.51 mmol) was added to the mixture. After being stirred for 16 hours at 70 C., the reaction mixture was diluted with EtOAc and water. The organic layer was washed by brine, dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography on SiO2 (Hex:EtOAc=1:1) to give the desired product (520 mg, 66%) as a colorless oil. 1H NMR (400 Hz, CDCl3) delta 1.24 (3H, t, J=7.6 Hz), 1.57-1.84 (5H, m), 2.03-2.20 (3H, m), 2.57 (2H, q, J=7.6 Hz), 3.78-3.82 (1H, m), 4.94-5.01 and 5.06-5.10 (1H, each m), 8.33 (2H, s). LC-MS m/z=222.8 [M+H]+.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,111196-81-7, 2-Chloro-5-ethylpyrimidine, and friends who are interested can also refer to it.

Reference:
Patent; CHEMIZON, A DIVISION OF OPTOMAGIC CO., LTD.; US2012/53180; (2012); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Reference of 5305-59-9, 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 5305-59-9, name is 6-Chloropyrimidin-4-amine. This compound has unique chemical properties. The synthetic route is as follows.

A mixture of 6-chloropyrimidin-4-amine (0.324 g, 2.5 mmol), phenylboronic acid (0.381 g, 3.13 mmol), Na2CO3 (0.795 g, 7.50 mmol) and Bis(triphenylphosphine)palladium(II) chloride (0.035 g, 0.050 mmol) were suspended in a mixture of Dioxane (15 mL)/EtOH (2 mL)/water (3 mL). The mixture was heated a heating block at 125 C for 2 h and concentrated. The residue was purified on the silica gel using 100 % ethyl acetate, then 10% methanol in ethyl acetate. The desired fractions were concentrated to give an off-white solid (0.25 g, 58 %).1H NMR (400 MHz, DMSO-d6) d ppm 8.44 (1 H, d, J=1.26 Hz), 7.93 – 8.00 (2 H, m), 7.42 – 7.52 (3 H, m), 6.91 (2 H, s), 6.88 (1 H, d, J=1.26 Hz). LCMS (method D) tR, 2.58min., MH+ = 172.1.

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 5305-59-9, 6-Chloropyrimidin-4-amine.

Reference:
Article; Iwuagwu, Christiana; King, Dalton; McDonald, Ivar M.; Cook, James; Zusi, F. Christopher; Hill, Matthew D.; Mate, Robert A.; Fang, Haiquan; Knox, Ronald; Gallagher, Lizbeth; Post-Munson Amy Easton, Debra; Miller, Regina; Benitex, Yulia; Siuciak, Judy; Lodge, Nicholas; Zaczek, Robert; Morgan, Daniel; Bristow, Linda; Macor, John E.; Olson, Richard E.; Bioorganic and Medicinal Chemistry Letters; vol. 27; 5; (2017); p. 1261 – 1266;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 611-08-5, 5-Nitrouracil, 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, Computed Properties of C4H3N3O4, blongs to pyrimidines compound. Computed Properties of C4H3N3O4

5-Nitrouracil (Aldrich Chemical Company) was treated with phosphorous oxychloride and NN-dimethylaniline according to the procedure described in Whittaker, J. Chem. Soc. 1951,1565, to give 2,4-dichloro-5-nitropyrimidine as an orange oil which was used without distillation immediately in the next step.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,611-08-5, 5-Nitrouracil, and friends who are interested can also refer to it.

Reference:
Patent; ELAN PHARMACEUTICALS, INC.; WO2005/97162; (2005); A2;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia