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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1833729Generated: October 30, 2026

Hydrochloric Acid → 2-(4-Heptylphenyl)pyrimidine-5-carbonitrile

https://huagongshe.com/reaction/1833729

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl (ethoxymethylene)malonateHCID 6871—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant4-HeptylbenzonitrileHCID 575863—
ReactantSodium ethoxideHCID 2723922—
Reactant2(-p-n-Heptylphenyl)-4-chloro-5-pyrimidinecarboxylic acid ethyl esterHCID 53845756—
ReactantHCID 178442521HCID 178442521—
SolventEthanolHCID 702—
Product2-(4-Heptylphenyl)pyrimidine-5-carbonitrileHCID 21388833—

Reaction Steps

The starting material can be obtained according to the procedure of A. B. Todd and F. Bergel, J. Chem. Soc. 1937, 366 from p-n-heptylbenzamie hydrochloride [prepared according to H. Schubert and H. Zaschke, J. prakt. Chem. 312, 494 (1970) from p-n-heptylbenzonitrile; melting point 126.0°-127.3° C[ and ethoxymethylenemalonic acid diethyl ester with sodium ethylate in ethanol and subsequent treatment of the obtained 2-(p-n-heptylphenyl)-4-hydroxy-5-primidinecarboxylic acid ethyl ester (melting point 184.7°-185.3° C) with phosphorus oxychloride. The melting point of 2(-p-n-heptylphenyl)-4-chloro-5-pyrimidinecarboxylic acid ethyl ester is 49.2°-49.8° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04066570
Source datasetuspto-grants-1978_01
ORD IDord-2b2737df5f4442baa56fd96861fe0b99
Source noteuspto-grants-1978_01