Application of 5767-35-1, 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. 5767-35-1, name is 4-Chloro-6-hydrazinopyrimidine. A new synthetic method of this compound is introduced below.
A solution of 4-chloro-6-hydrazinylpyrimidine (2.00 g, 13.8 mmol) and ethyl 2,4-dioxopentanoate (2.19 g, 13.8 mmol) in ethanol (40 ml) was refluxed overnight. After cooling to room temperature a precipitate was formed which was filtered and dried to afford 2.25 g (61% yield) of the desired product. The filtrate was processed further to yield the regioisomeric product. LC-MS (method 11): Rt = 1.33 min; MS (ESIpos): m/z = 267 [M+H]+ 1H-NMR (600MHz, DMSO-d6): delta [ppm] : 1.32 (t, 4H), 4.34 (q, 3H), 6.88 (d, 1H), 8.02 (d, 1H), 9.05 (d, 1H).
At the same time, in my other blogs, there are other synthetic methods of this type of compound,5767-35-1, 4-Chloro-6-hydrazinopyrimidine, and friends who are interested can also refer to it.
Reference:
Patent; BAYER AKTIENGESELLSCHAFT; BAYER PHARMA AKTIENGESELLSCHAFT; GIESE, Anja; KLAR, Juergen; EHRMANN, Alexander; WILLWACHER, Jens; ENGEL, David; DIESKAU, Andre Philippe; KAHNERT, Antje; GROMOV, Alexey; SCHMECK, Carsten; LINDNER, Niels; MUeLLER, Thomas; ANDREEVSKI, Anna Lena; DREHER, Jan; COLLINS, Karl; (861 pag.)WO2018/69222; (2018); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia