Category: 31169-25-2

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. 31169-25-2, name is 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one. This compound has unique chemical properties. The synthetic route is as follows. HPLC of Formula: C6H3BrN2OS

7-Bromo-4-chloro-thieno[3,2-d]pyrimidine (192): A solution of 7-bromo-3H-thieno[3,2-d]pyrimid-4-one (191, 153.0 mg, 0.66 mmol) in phosphorus oxychloride (2 mL) was refluxed under N2 for 2 hours. The resulting solution was allowed to cool to room temperature and then neutralized by carefully pouring into a saturated aqueous solution of sodium carbonate. The aqueous mixture was extracted with ethyl acetate and the organic layer washed with water and brine, before drying over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue dried over P2O5 under vacuum overnight (156.0 mg, 95percent yield, white solid).

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, 31169-25-2, 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one.

Reference:
Patent; Thrash, Thomas; Cabell, Larry A.; Lohse, Daniel; Budde, Raymond J.A.; US2006/4002; (2006); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Electric Literature of 31169-25-2, 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 31169-25-2, name is 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one. This compound has unique chemical properties. The synthetic route is as follows.

Dimethylformamide (25.8 mL, 0.33 mol) and dichloromethane (150 mL) were placed in a reaction vessel, to which a dilution of oxalyl chloride (46.4 mL, 0.53 mol) in dichloromethane (150 mL) was then added over about 30 min. Subsequently, 7- bromothieno[3,2-d]pyrimidin-4(3H)-one (35 g, 0.15 mol) was added, and heated under reflux for 3 hrs. Thereafter, the reaction mixture was quenched before water was added carefully. The Organic layer thus formed was isolated, while the aqueous layer was extracted with dichloromethane. The organic layers were pooled and dried over anhydrous sodium sulfate, and the dried organic layer was subjected to vacuum filtration and vacuum distillation, followed by desiccation with a nitrogen gas to obtain the desired compound (30.5 g, 85percent). ‘H-NMR^OOMHz, DMSO-d6): delta 9.16(s, 1H), 8.79(s, 1H).

According to the analysis of related databases, 31169-25-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; HANMI PHARM. CO., LTD.; BANG, Keuk Chan; PARK, Chang Hee; CHOI, Jae Yul; KIM, Seo Hee; HAM, Young Jin; WO2014/3483; (2014); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Related Products of 31169-25-2, 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. 31169-25-2, name is 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one, molecular formula is C6H3BrN2OS, 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.

7-Bromothieno[3,2-d]pyrimidine-4(3H)-one (5.9g) was dissolved in POCl3 (20mL) and then stirred at 150°C for 3 hours. After cooling down to room temperature, the remaining POCI3 was concentrated and added to ice water to obtain a solid. The solid was washed with sat. NaHC03 solution and dried with N2 gas to obtain the title compound. NMR (400MHz, DMSO-d^) delta 9.16 (s, 1H), 8.79 (s, 1H).

According to the analysis of related databases, 31169-25-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; HANMI HOLDINGS CO., LTD.; KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY; CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION; SON, Jung Beom; JUNG, Seung Hyun; CHOI, Wha Il; JUNG, Young Hee; CHOI, Jae Yul; SONG, Ji Yeon; LEE, Kyu Hang; LEE, Jae Chul; KIM, Eun Young; AHN, Young Gil; KIM, Maeng Sup; CHOI, Hwan Geun; SIM, Tae Bo; HAM, Young Jin; PARK, Dong-sik; KIM, Hwan; KIM, Dong-Wook; WO2011/93684; (2011); A2;,
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. 31169-25-2, name is 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 31169-25-2

Dimethylformamide (25.8 mL, 0.33 mol) and dichloromethane (150 mL) were added to a reactor. Oxalyl chloride (46.4 mL, 0.53 mol) diluted with dichloromethane (150 mL) at room temperature was added to the reactor for about 30 minutes. 7-bromothieno[3,2- d]pyrimidin-4(3H)-one (35 g, 0.15 mol) was added thereto, and then, the reaction solution was heated to reflux for 3 hours. The temperature of the reaction solution was lowered and water was carefully added thereto. The organic layer was separated, and the aqueous layer was subjected to extraction using dichloromethane. The extracted organic layer was dried over anhydrous sodium sulfate. The dried organic layer was filtered and distilled under reduced pressure, and dried with nitrogen gas to obtain the title compound (30.5 g, 85percent). 1H-NMR Spectrum (300 MHz, DMSO-: delta 9.16 (s, 1H), 8.79 (s, 1H)

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, 31169-25-2, 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one.

Reference:
Patent; HANMI PHARM CO., LTD.; BAE, In Hwan; SON, Jung Beom; HAN, Sang Mi; KWAK, Eun Joo; KIM, Ho Seok; SONG, Ji Young; BYUN, Eun Young; JUN, Seung Ah; AHN, Young Gil; SUH, Kwee Hyun; WO2013/100632; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Application of 31169-25-2, 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. 31169-25-2, name is 7-Bromothieno[3,2-d]pyrimidin-4(3H)-one, molecular formula is C6H3BrN2OS, 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.

7-Bromothieno[3,2-d]pyrimidine-4(3H)-one (5.9g) was dissolved in POCl3 (20mL) and then stirred at 150C for 3 hours. After cooling down to room temperature, the remaining POCI3 was concentrated and added to ice water to obtain a solid. The solid was washed with sat. NaHC03 solution and dried with N2 gas to obtain the title compound. NMR (400MHz, DMSO-d^) delta 9.16 (s, 1H), 8.79 (s, 1H).

According to the analysis of related databases, 31169-25-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; HANMI HOLDINGS CO., LTD.; KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY; CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION; SON, Jung Beom; JUNG, Seung Hyun; CHOI, Wha Il; JUNG, Young Hee; CHOI, Jae Yul; SONG, Ji Yeon; LEE, Kyu Hang; LEE, Jae Chul; KIM, Eun Young; AHN, Young Gil; KIM, Maeng Sup; CHOI, Hwan Geun; SIM, Tae Bo; HAM, Young Jin; PARK, Dong-sik; KIM, Hwan; KIM, Dong-Wook; WO2011/93684; (2011); A2;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Reference of 31169-25-2, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 31169-25-2 as follows.

7-bromothieno[3,2-d]pyrimidin-4(3H)-one (5.9 g) was dissolved in POCl3 (20 mL) and the reaction mixture was stirred at 150 C. for 3 hours. The reaction mixture was cooled to room temperature, and remaining POCl3 was concentrated and placed in ice water. The solid thus obtained was washed with sodium bicarbonate and dried using nitrogen gas. The resulting compound was further dried over anhydrous sodium sulfate, and filtered and distilled under reduced pressure to obtain the title compound (1.0 g, 39%). [0175] 1H NMR (300 MHz, DMSO-d6): delta 9.16 (s, 1H), 8.79 (s, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,31169-25-2, its application will become more common.

Reference:
Patent; HANMI PHARM. CO., LTD; Son, Jung Beom; Kim, Nam Du; Chang, Young Kil; Kim, Hee Cheol; Kim, Ji Sook; Jung, Young Hee; US2013/274268; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia