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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1284075Generated: October 29, 2026

Imidazole → HCID 54257884, compound

https://huagongshe.com/reaction/1284075

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantPhosphorus pentachlorideHCID 24819—
ReactantMethyl phenylglyoxalateHCID 84835—
ReactantHCID 54543960HCID 54543960—
ReactantHCID 178418370HCID 178418370—
SolventAcetonitrileHCID 6342—
ProductHCID 54257884HCID 54257884—

Reaction Steps

13.7 g phenyl-p-tolyl-chloroacetic acid methyl ester (prepared from p-tolyl-magnesium bromide and benzoyl-formic acid methyl ester and treatment with PCl5 ; (b.p. 150°C./0.3 mm Hg) are heated with 10 g imidazole in 100 ml acetonitrile at boiling temperature for 16 hours. The acetonitrile is distilled off in a vacuum. The residue is treated with 50 ml of water and then extracted with methylene chloride. The methylene chloride solution is distilled off in a vacuum and the residue recrystallized from a little ethyl acetate. The phenyl-p-tolyl-imidazolyl-acetic acid methyl ester i.e. phenyl-4-methylphenyl-imidazolyl-acetic acid methyl ester of m.p. 146°C. is thus obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03978069
Source datasetuspto-grants-1976_08
ORD IDord-b3ff9e8f4dd448139a27b0d048847016
Source noteuspto-grants-1976_08