Category: 698-29-3

Adding a certain compound to certain chemical reactions, such as: 698-29-3, 4-Amino-2-methylpyrimidine-5-carbonitrile, 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: pyrimidines, blongs to pyrimidines compound. category: pyrimidines

Method A 6-(2,6-Dichlorophenyl)-2-methylpyrido[2,3,-d]-pyrimidin-7-amine A mixture of 76.5 g of 4-amino-2-methylpyrimidine-5-carbonitrile, 380 ml of 97% formic acid, 380 ml of water, and 8 g of Raney nickel catalyst is treated in a Parr pressure apparatus with hydrogen gas at an initial pressure of 51 psi at room temperature for 2.75 hours. The catalyst is removed by filtration and the filtrate is treated with 47.5 ml of concentrated hydrochloric acid and evaporated at reduced pressure. The residue is dissolved in hot water, treated with charcoal and filtered. Neutralization of the filtrate with concentrated ammonium hydroxide precipitates the product which is then collected by filtration and washed with water. Recrystallization from ethanol gives 37.9 g of 4-amino-2-methylpyrimidine-5-carboxaldehyde, mp 191-192.5 C.

The synthetic route of 698-29-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Warner-Lambert Company; US4271164; (1981); A;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 698-29-3, 4-Amino-2-methylpyrimidine-5-carbonitrile, 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, 698-29-3, blongs to pyrimidines compound. SDS of cas: 698-29-3

A solution of 4-amino-2-methylpyrimidine-5-carbonitrile 1a (3.04g, 30mmol) and raney nickel (3.0g) in formic acid (20mL) was stirred at 80C for 4h. After this, the reaction mixture was filtered and washed with 10mL formic acid. The filtrate and washings were collected together and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel and eluted with ethyl acetate/petroleum ether (1:1, v/v) to give white solid 2a, which was used directly for the next step. Under this same condition, the intermediate compounds 2a and 2c were also prepared.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,698-29-3, its application will become more common.

Reference:
Article; He, Haifeng; Xia, Hongying; Xia, Qin; Ren, Yanliang; He, Hongwu; Bioorganic and Medicinal Chemistry; vol. 25; 20; (2017); p. 5652 – 5661;,
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. 698-29-3, name is 4-Amino-2-methylpyrimidine-5-carbonitrile. This compound has unique chemical properties. The synthetic route is as follows. Computed Properties of C6H6N4

EXAMPLE 8 4-Amino-2-methyl-5-pyrimidinecarbothioamide Hydrogen sulfide is passed through a mixture of 4-amino-2-methyl-5-pyrimidinecarbonitrile (6.707 g., 0.050 m.), triethylamine (7.0 ml., 0.050 m.), dimethylformamide (25 ml.) and pyridine (100 ml.) with stirring for 3 hours at ambient temperature. The mixture is poured into ice water (500 ml.) and the cream-colored solid which separates is collected by filtration, washed with water, dried at 110 C./0.1 mm. The yield of product melting at 260 C. dec. (uncorr.) is 7.663 g. (91.1%). This material is recrystallized from dimethylformamide-water (Darco G-60) affording colorless crystals melting at 264 C. dec. (uncorr.) in a yield of 5.110 g. (60.8%). Analysis for: C6 H8 N4 S; Calculated: C, 42.83; H, 4.79; N, 33.32; S, 19.06; Found: C, 42.79; H, 4.83; N, 33.34; S, 19.19.

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, 698-29-3, 4-Amino-2-methylpyrimidine-5-carbonitrile.

Reference:
Patent; American Home Products Corporation; US4323681; (1982); A;,
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. 698-29-3, name is 4-Amino-2-methylpyrimidine-5-carbonitrile. A new synthetic method of this compound is introduced below., 698-29-3

EXAMPLE 5 4-Amino-2-methyl-5-pyrimidinecarboxamidoxime A solution of hydroxylamine base, prepared from hydroxylamine hydrochloride (7.296 g., 0.105 mole) and potassium t-butoxide (11.783 g., 0.105 mole) in dimethyl sulfoxide (200 ml.) in a manner similar to that of Example 1, is allowed to react with 4-amino-2-methyl-5-pyrimidine carbonitrile (13.414 g., 0.100 mole). After addition of dimethyl sulfoxide (50 ml.), the mixture is heated at 40+-1 C. for 92 hours. The solid which separates is collected by filtration, successively washed with methanol (1*50 ml.) and water (3*50 ml.) then dried at 110/0.1 mm. The yield of colorless crystals melting at 263 C. dec. (uncorr.) is 10.059 g. (60.2%). A second crop is obtained by concentrating the combined filtrates in vacuo to give a white solid. This material is washed with water, dried at 110 C./0.1 mm. The yield of colorless crystals melting at 256 C. dec. (uncorr.) is 6.300 g. (37.6%). The total yield of crude product is 16.359 g. (97.8%). The combined fractions are recrystallized from 2-methoxyethanol (Darco G-60) affording 7.887 g. (47.2%) of colorless prisms melting at 264 C. dec. (uncorr.). Concentration of the mother liquors yields a second crop of colorless prisms melting at 265 C. dec. (uncorr.) in a yield of 6.258 g. (37.4%) total yield is 14.145 g. (84.6%). Analysis for: C6 H9 N5 O; Calculated: C, 43.11; H, 5.42; N, 41.90; Found: C, 43.04; H, 5.35; N, 42.12.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,698-29-3, 4-Amino-2-methylpyrimidine-5-carbonitrile, and friends who are interested can also refer to it.

Reference:
Patent; American Home Products Corporation; US4323681; (1982); A;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

A common compound: 698-29-3, name is 4-Amino-2-methylpyrimidine-5-carbonitrile,molecular formula is C6H6N4, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below., 698-29-3

(0273) To a solution of the compound of Reference Example 22 (50.0 g, 373 mmol) in formic acid (150 mL) were added water (65 mL) and Raney nickel (50 g). The mixture was heated under reflux for 15 minutes, cooled to room temperature, and filtrated through Celite, and then 28% ammonia water (220 mL) was added thereto under ice cooling. The mixture was stirred under ice cooling for 1 hour, and the precipitate was collected by filtration. The filter cake was washed with water (30 mL) and chloroform (30 mL¡Á2), and dried in vacuo. Furthermore, the filtrate was extracted with chloroform (200 mL) nine times, and the combined organic layer was concentrated. The resulting concentrated residue and the above-obtained filter cake were mixed, chloroform (70 mL) was added thereto, the mixture was stirred at room temperature for 30 minutes, hexane (210 mL) was added dropwise thereto over 10 minutes, and the mixture was stirred at room temperature for additional 1 hour. The precipitate was collected by filtration, washed with hexane/chloroform (3/1, 28 mL), and dried in vacuo to give the title compound (42.6 g, 83%). 1H-NMR (400 MHz, CDCl3) delta: 2.57 (3H, s), 5.98 (1H, brs), 8.15 (1H, brs), 8.57 (1H, s), 9.86 (1H, s).

With the rapid development of chemical substances, we look forward to future research findings about 698-29-3.

Reference:
Patent; Sumitomo Dainippon Pharma Co., Ltd.; YOSHINAGA, Hidefumi; URUNO, Yoshiharu; NAGATA, Hidetaka; HASHIMOTO, Masakazu; KATO, Taro; (43 pag.)US2016/122319; (2016); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia