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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1680045Generated: October 31, 2026

Water → HCID 23458906, compound

https://huagongshe.com/reaction/1680045

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAcetic AnhydrideHCID 7918—
ReactantSodium BicarbonateHCID 516892—
ReactantBenzoic acid, 4-[[(4-chlorophenyl)methyl]amino]-, ethyl esterHCID 773384—
SolventFormic AcidHCID 284—
ProductHCID 23458906HCID 2345890667%

Reaction Conditions

Temperature55 °C

Reaction Steps

Ethyl 4-(4-chlorobenzylamino)-benzoate (7.2 g; 0.025 mole) was dissolved in formic acid (80%; 70 ml) and the solution was heated to 55° C. with stirring. Acetic anhydride (25 ml) was added dropwise at this temperature, allowed to cool to room temperature and stirred for 1 hour. The reaction mixture was added to iced water (100 ml) and the aqueous mixture was neutralised with solid sodium bicarbonate. The product was extracted into dichloromethane (2×100 ml), washed with water (1×100 ml), dried (anhydrous MgSO4) and evaporated. Pure N-(4-ethoxycarbonylphenyl)-N-(4-chlorobenzyl)-formamide (5.32 g; 67%) was obtained by chromatography on silica-gel in dichloromethane followed by crystallisation from ethanol. M.p. 72°-3° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04271188
Source datasetuspto-grants-1981_06
ORD IDord-0d60593796ec45afa408be4877cb39db
Source noteuspto-grants-1981_06