With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.5018-38-2, name is 4,6-Dichloro-5-methoxypyrimidine, molecular formula is C5H4Cl2N2O, molecular weight is 179, as common compound, the synthetic route is as follows.Recommanded Product: 4,6-Dichloro-5-methoxypyrimidine
To a solution of 4-hydroxyphenylethylamine hydrochloride (300 mg) in Nu,Nu-dimethyl formamide (DMF, 5 mL) was added diisopropylethylamine (355 mg, 2 equiv.). The solution was stirred for 5 min before the addition of 4,6-dichloro-5-methoxypyrimidine (249 mg, 1 equiv.). The reaction mixture was then stirred for 16 h at room temperature before it was concentrated in vacuo. The residue was dissolved in DMF (10 mL) and was stirred with sodium hydride (66 mg, 2.2 equiv.) for 20 min at room temperature. Another portion of 4,6-dichloro-5-methoxypyrimidine (269 mg, 1 .2 equiv.) was introduced into the reaction mixture, which was then left to stir at room temperature for 48 h. The DMF was then removed in vacuo and the product was purified by flash silica column chromatography to afford 178 mg (31 % yield) of the product as a white solid.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,5018-38-2, 4,6-Dichloro-5-methoxypyrimidine, and friends who are interested can also refer to it.
Reference:
Patent; BASF SE; BASF SCHWEIZ AG; GRAMMENOS, Wassilios; CRAIG, Ian Robert; BOUDET, Nadege; MUeLLER, Bernd; DIETZ, Jochen; LAUTERWASSER, Erica May Wilson; LOHMANN, Jan Klaas; MONTAG, Jurith; WO2013/113863; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia