Category: 13509-52-9

Related Products of 13509-52-9, 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 13509-52-9, name is 1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione. This compound has unique chemical properties. The synthetic route is as follows.

Intermediate 1 l ,3-Dimethyl-lH-pyrroIo[3,2-<;phiyrimidine-2,4(3H,5//)-dione:Step 1 l,3,6-Trimethyl-5-nitrouracil: A mixture of concentrated H2SO4 (7.0 mL) and fuming HNO3 (7.0 mL) was cooled to 0-50C and l,3,6-trimethylpyrimidine-2,4(lH,3H)- dione (3.5 g, 22.702 mmol) was gradually added to the reaction mixture. After stirring for 2 h. at the same temperature the reaction mixture was partitioned between ethyl acetate (200 mL) and water (100 mL). The organic layer was washed with brine (2 x 50 mL), dried (Na2SO4) and evaporated under reduced pressure. Crude product obtained was purified by column chromatography to give 1.30 g of the product as yellow solid; 1H NMR (delta ppm, 300-MHz, DMSO-J6) 2.38 (s,~3H), 3.20 (s, 3H), 3.40 (s, 3H); APCI-MS (m/z) 198.30 (M-H). According to the analysis of related databases, 13509-52-9, the application of this compound in the production field has become more and more popular. Reference:
Patent; GLENMARK PHARMACEUTICALS S.A.; CHAUDHARI, Sachin, Sundarlal; KUMAR, Sukeerthi; THOMAS, Abraham; PATIL, Nisha, Parag; KADAM, Ashok, Bhausaheb; DESHMUKH, Vishal, Govindrao; DHONE, Sachin Vasantrao; CHIKHALE, Rajendra, Prakash; KHAIRATKAR-JOSHI, Neelima; MUKHOPADHYAY, Indranil; WO2010/109287; (2010); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of 13509-52-9, 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. 13509-52-9, name is 1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione. A new synthetic method of this compound is introduced below.

1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione (step 1) (5 g, 32.4 mmol) and chlorobenzene (50 mL) were charged to a 3 necked flask, and the vessel evacuated with nitrogen. Benzoyl chloride (commercial) (11.2 mL, 97 mmol) was added followed by zinc (II) chloride (5 g, 36.7 mmol) in one portion and the reaction was then heated to 110 C. for 16 h. The reaction was cooled to RT then poured into water (100 mL) and EtOAc (100 mL). The layers were separated and the aqueous extracted with EtOAc (2×150 mL). The combined organics were washed with water (100 mL) and dried (Na2SO4), filtered under reduced pressure and evaporated to leave an orange solid. The solid was washed with hexane followed by hot diethyl ether, affording the product as an off white solid. The mother liquors were further purified by chromatography on silica, eluting with 10%-100% EtOAc/hexane. The title product was obtained as a pale orange solid; [1758] 1H NMR (400 MHz, CDCl3) delta 7.89 (2H, dd), 7.60 (1H, t), 7.48 (2H, t), 3.52 (3H, s), 3.38 (3H, s), 2.26 (3H, s); [1759] LCMS Rt=0.80 min [M+H]+ 259 (Method 2minLC_v003).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,13509-52-9, 1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione, and friends who are interested can also refer to it.

Reference:
Patent; NOVARTIS AG; AHMED, Mahbub; ASHALL-KELLY, Alexander; GUERITZ, Louisa; MCKENNA, Jeffrey; MCKENNA, Joseph; MUTTON, Simon; PARMAR, Rakesh; SHEPHERD, Jon; WRIGHT, Paul; US2014/171417; (2014); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Related Products of 13509-52-9, Adding some certain compound to certain chemical reactions, such as: 13509-52-9, name is 1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione,molecular formula is C7H10N2O2, 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 13509-52-9.

Step 2: 6-[(£)-2-(Dimethylamino)vinyl]- l,3-dimethylpyrimidine-2,4(lH,3H)-dione: A mixture of Step 1 intermediate (40.0 g, 259.70 mmol) and N,N-dimethyl formamide dimethyl acetal (206 ml, 1549.12 mmol) in dry DMF (80 ml) was heated at 90C for 48 h. The reaction mixture was cooled to room temperature and diluted with diethyl ether (100 ml). The precipitated solid was filtered, washed with diethyl ether (2 x 50 ml) and dried to obtain 34 g of product as off-white solid. -NMR (300 MHz, CDCI3) delta 2.95 (s, 6H), 3.33 (s, 3H), 3.43 (s, 3H), 4.62 (d, J = 12.6 Hz, 1 H), 5.58 (s, 1 H), 7.03 (d, J = 12.6 Hz, l 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. 13509-52-9, 1,3,6-Trimethylpyrimidine-2,4(1H,3H)-dione, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; GLENMARK PHARMACEUTICALS S.A.; KUMAR, Sukkeerthi; THOMAS, Abraham; WAGHMARE, Nayan, Taterao; KHAIRATKAR-JOSHI, Neelima; MUKHOPADHYAY, Indranil; WO2011/132017; (2011); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia