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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2064201Generated: October 30, 2026

Methanol → HCID 20482634, compound

https://huagongshe.com/reaction/2064201

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthyl AcetateHCID 8857—
Reactant4,5-Dimethyl-1,2-phenylenediamineHCID 76635—
ReactantEthyl 1-benzyl-4-oxopiperidine-3-carboxylateHCID 102624—
SolventO-XyleneHCID 7237—
ProductHCID 20482634HCID 2048263435%

Reaction Steps

A solution of 1-benzyl-3-carbethoxy-4-piperidone (3 mmol, 784 mg) in xylene (20 mL) was treated at room temperature with 4,5-dimethyl-1,2-benzenediamine (3 mmol, 408.6 mg, 1 eq) and the suspension was stirred under reflux under argon overnight then further for 5 h. The mixture was concentrated under reduced pressure to give a brown residue, which was treated with ethyl acetate and a touch of methanol. Beige crystals formed from the brown solution and were filtered off and dried under reduced pressure (vacuum oven) to give the title compound (1.05 mmol, 350 mg, 35% yield). M+H 334.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288412B2
Source datasetuspto-grants-2012_10
ORD IDord-862a1be8f11b49e9a23092d0ee595196
Source noteuspto-grants-2012_10