Application of 29274-22-4, 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. 29274-22-4, name is Pyrazolo[1,5-a]pyrimidin-5-ol, molecular formula is C6H5N3O, 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.
A solution of 4H-pyrazolo[1,5-a]pyrimidin-5-one (1 g, 7.40 mmol, 1 .00 equiv) in phosphorus oxychloride ( 1 5 mL) was stirred under nitrogen for 2 h at 1 20 C. The reaction mixture was cooled to rt then concentrated under vacuum. The residue was purified on a si lica gel column eluted with ethyl acetate/petroleum ether ( 1 :2) to give 0.6 g (53%) of the title compound as a light yellow solid. LC/MS (Method I, ESI): RT = 1.21 min, m z = 154.0 [Mu+Eta]
According to the analysis of related databases, 29274-22-4, the application of this compound in the production field has become more and more popular.
Reference:
Patent; GENENTECH,INC.; FORMA TM, LLC; BAIR, Kenneth W.; BAUMEISTER, Timm R.; BUCKMELTER, Alexandre J.; CLODFELTER, Kanl H.; DRAGOVICH, Peter; HAN, Bingsong; LIN, Jian; LIU, Xiongcai; REYNOLDS, Dominic J.; SMITH, Chase C.; WANG, Zhongguo; YUEN, Po-Wai; ZAK, Mark; ZHANG, Yamin; ZHENG, Xiaozhang; ZHAO, Guiling; WO2013/127268; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia