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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 257846Generated: October 31, 2026

Methyl 2-[4-(aminomethyl)phenoxy]-2-(2-chlorophenyl)acetate → 5-butyl-4-[4-[(1-carbomethoxy)(1-(2-chlorophenyl))methoxy]phenyl]methyl-2,4-dihydro-3H-1,2,4-triazol-3-one

https://huagongshe.com/reaction/257846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 2-[4-(aminomethyl)phenoxy]-2-(2-chlorophenyl)acetateHCID 19781920—
ReactantEthyl valerate carbethoxyhydrazoneHCID 53752329—
SolventEthanolHCID 702—
Product5-butyl-4-[4-[(1-carbomethoxy)(1-(2-chlorophenyl))methoxy]phenyl]methyl-2,4-dihydro-3H-1,2,4-triazol-3-oneHCID 19781890—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of approximately equimolar quantities of ethyl valerimidate carbethoxyhydrazone (from Step A) and methyl 2-[4-(aminomethyl)phenoxy]-2-(2-chlorophenyl)acetate (Step F) in ethanol is stirred at 80° C. under N2. After about 2 hours, or when TLC indicates complete reaction, the mixture is cooled and concentrated to dryness. The residue is re-concentrated from CH2Cl2 and then chromatographed on silica gel to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05264439
Source datasetuspto-grants-1993_11
ORD IDord-5d3831f9bee3421ca572860631ca2b71
Source noteuspto-grants-1993_11