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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 585472Generated: October 30, 2026

Toluene → HCID 69798198, compound

https://huagongshe.com/reaction/585472

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactantpyrimidine-4,6-dicarboxylic acidHCID 239360—
ProductHCID 69798198HCID 69798198—

Reaction Conditions

Temperature10 °C

Reaction Steps

1.7 g of pyrimidine-4,6-dicarboxylic acid are suspended in 20 ml of toluene and 2.4 g of thionyl chloride and 0.2 ml of dimethylformamide are added. The mixture is heated to reflux until it is no longer possible to observe any gas evolution (about 3 hours (h)). About 5 ml of solvent are distilled off and the mixture is then cooled down to from 0 C to 10° C. and 2.7 g of benzylamine, dissolved in 10 ml of toluene, are added. The solution is slowly heated to room temperature, then stirred at room temperature for 12 hours and evaporated down to dryness. The residue is taken up in 50 ml of methylene chloride and the solution is extracted 3 times by shaking with saturated sodium hydrogen carbonate solution; the organic phase is washed with water, dried with magnesium sulfate and evaporated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06933298B2
Source datasetuspto-grants-2005_08
ORD IDord-65789242fdac4ceea1d7f584b1569bb8
Source noteuspto-grants-2005_08