Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1702797Generated: October 30, 2026

5-Fluorouracil → HCID 20525058, compound

https://huagongshe.com/reaction/1702797

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-FluorouracilHCID 3385—
Reactant4-Chlorophenyl IsocyanateHCID 7693—
SolventPyridineHCID 1049—
ProductHCID 20525058HCID 2052505858.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

A solution of 5-fluorouracil (2.6 g.) in pyridine (25 ml.) was added to 4-chlorophenyl isocyanate (3.07 g.) and the solution was stirred at 80° C. for 4 hours. The resultant solution was allowed to stand overnight in a refrigerator. The crystalline precipitates were collected by filtration, washed successively with ethyl acetate, diethyl ether, and then dried to give 1-[N-(4-chlorophenyl)carbamoyl]-5-fluorouracil (3.30 g.); colorless crystalline powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04349552
Source datasetuspto-grants-1982_09
ORD IDord-de66ea08746c459f98f4124dc9c990a9
Source noteuspto-grants-1982_09