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.504-17-6, name is 4,6-Dihydroxy-2-mercaptopyrimidine, molecular formula is C4H4N2O2S, molecular weight is 144.1518, as common compound, the synthetic route is as follows.Application In Synthesis of 4,6-Dihydroxy-2-mercaptopyrimidine
General procedure: A mixture of aldehyde (0.25 mmol), 2-thiobarbituric acid(0.5 mmol), ammonium acetate (0.3 mmol) and CuFe2O4 (10 mol%)in distilled H2O was stirred for an appropriate time. After completionof the reaction (monitored by TLC), the resulted precipitatewasfiltered and dissolved in hot methanol and the catalyst was separatedand collected by an external magnetic and washed withacetone and EtOH several times and dried in an oven at 70 C toreuse in next reactions. The pure solid product was obtained viaevaporation the 2/3 of methanol and filtration. The solid productwas recrystallized from water/ethanol as solvent to afford the pureproducts. All of the products were identified by physical andspectroscopic data. White powder; M.P: 240 C decompose. IR (KBr) n (cm1): 3432(NH), 3108 (CeH, sp2 stretch), 1623, 1687 (C]O), 1433, 1544 (C]C,Ar). 1H NMR (DMSO-d6, 400 MHz) d (ppm): 6.01 (s, 1H), 6.91e7 (m,3H), 7.08e7.12 (m, 4H), 11.49e11.75 (m, 4H), 17 (s, 1H). 13C NMR(DMSO-d6, 100 MHz) d (ppm): 26.88, 95.44, 115.26, 123.60, 127.61,130.05, 130.48, 159.60, 162.03, 163.32, 173.24. Anal. Calcd forC15H12FN5O2S2: C, 47.74; H, 3.20; N, 18.56, %; Found C, 47.76; H,3.24; N, 18.60%.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,504-17-6, 4,6-Dihydroxy-2-mercaptopyrimidine, and friends who are interested can also refer to it.
Reference:
Article; Naeimi, Hossein; Didar, Asieh; Journal of Molecular Structure; vol. 1137; (2017); p. 626 – 633;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia