Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2258475Generated: November 1, 2026

Methylamine → 3-methyl-6-(methylamino)-1-phenylpyrimidine-2,4(1H,3H)-dione

https://huagongshe.com/reaction/2258475

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant6-Chloro-3-methyl-1-phenylpyrimidine-2,4(1H,3H)-dioneHCID 15046223—
SolventIsopropanolHCID 3776—
Product3-methyl-6-(methylamino)-1-phenylpyrimidine-2,4(1H,3H)-dioneHCID 354976189.1%

Reaction Conditions

Temperature90 °C

Reaction Steps

The obtained 6-chloro-3-methyl-1-phenyluracil (4.26 g, 18 mM) was added to 100 ml of 2-propanol. A 40% aqueous solution of methylamine (17 g, 0.22M) was added to the resulting solution and the mixture was heated at 90° C. for 5 hours while stirring. After being left to cool, a precipitated crystal was obtained by filtration and washed successively with ethanol and water to yield 3-methyl-6-methylamino-1-phenyluracil (yield: 3.71 g, or 89% based on 6-chloro-3-methyl-1-phenyluracil).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05661153
Source datasetuspto-grants-1997_08
ORD IDord-17c53ece066a49338c8a2388adecf8ee
Source noteuspto-grants-1997_08