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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2084581Generated: October 27, 2026

Formic Acid → N-(5-amino-4,6-dichloropyrimidin-2-yl)-formamide

https://huagongshe.com/reaction/2084581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantWaterHCID 962—
ReactantTolueneHCID 1140—
Reactant2,5-Diamino-4,6-dichloropyrimidineHCID 301039—
ProductN-(5-amino-4,6-dichloropyrimidin-2-yl)-formamideHCID 102199211,000%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

A solution of 2,5-diamino-4,6-dichloro-pyrimidine (0.001 mol; 2.0 g) and 98% strength formic acid (0.5 mol, 22.96 g, 18.8 ml) was stirred overnight at room temperature. Toluene (0.94 mol, 86.76 g, 18.82 ml) was then added and the reaction was cooled to 0-5° C. The product was filtered off and washed with water (1.11 mol, 20.0 g, 20.0 ml). The product was subsequently dried at 50° C. in vacuo. N-(5-Amino-4,6-dichloropyrimidin-2-yl)formamide was detected in the 1H NMR as a single product. 0.01 mol (1.62 g) of the abovementioned product was obtained, corresponding to a yield of about 70%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06716981B2
Source datasetuspto-grants-2004_04
ORD IDord-14a0a31cd191415caae8c22b9d087b40
Source noteuspto-grants-2004_04