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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 893799Generated: October 30, 2026

Potassium Carbonate → HCID 178496815, compound

https://huagongshe.com/reaction/893799

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2,4,6-TrichloropyrimidineHCID 77378—
ReactantCarbamimidic acid, methyl ester, sulfate (1:1)HCID 169039—
SolventTolueneHCID 1140—
ProductHCID 178496815HCID 178496815142.6%

Reaction Conditions

Temperature110 °C

Reaction Steps

45.9 g (0.25 mol) of 2,4,6-trichloropyrimidine, 30.8 g (0.125 mol) of O-methyl-isourea sulphate and 51.8 g (0.375 mol) of ground potassium carbonate are suspended in 800 ml of toluene and stirred at 110° C. for 10 hours. After cooling, the crystalline solid is filtered off with suction, stirred with water for 15 minutes and again filtered off with suction. 39.4 g of N-(4,6-dichloro-pyrimidin-2-yl)-O-methylisourea are obtained (GC purity 98%: 38.6 g; yield: 69 of theory), melting point 178° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05126454
Source datasetuspto-grants-1992_06
ORD IDord-9a30900b756348de8722cd5a26d78ae1
Source noteuspto-grants-1992_06