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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1833725Generated: October 31, 2026

Hydrochloric Acid → HCID 21388814, compound

https://huagongshe.com/reaction/1833725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl (ethoxymethylene)malonateHCID 6871—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantSodium ethoxideHCID 2723922—
ReactantHCID 54377863HCID 54377863—
ReactantHCID 178440774HCID 178440774—
SolventEthanolHCID 702—
ProductHCID 21388814HCID 21388814—

Reaction Steps

The starting material can be obtained according to the procedure of A. R. Todd and F. Bergel, J. Chem. Soc. 1937, 366 from p-n-butylbenzamindine hydrochloride and ethoxymethylenemalonic acid diethyl ester with sodium ethylate in ethanol and subsequent treatment of the obtained 2-(p-n-butylphenyl)-4-hydroxy-5-pyrimidinecarboxylic acid ethyl ester (melting point 198.0°-198.8° C) with phosphorus oxychloride. The melting point of 2-(p-n-butylphenyl)-4-chloro-5-pyrimidinecarboxylic acid ethyl ester is 64.9°-65.3° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04066570
Source datasetuspto-grants-1978_01
ORD IDord-265c81d4db6f421a9411b516a15464dc
Source noteuspto-grants-1978_01