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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1625986Generated: November 3, 2026

O-Xylene → HCID 67078397, compound

https://huagongshe.com/reaction/1625986

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-XyleneHCID 7237—
ReactantEthyl 2-oxocyclohexanecarboxylateHCID 95543—
Reactant5-Bromopyridine-2,3-diamineHCID 691156—
ProductHCID 67078397HCID 67078397—

Reaction Steps

2,3-Diamino-5-bromopyridine (50 g) and 2-cyclohexanonecarboxylic acid ethyl ester (63.5 ml) were heated under reflux in xylene (2000 ml) for 64 hours. The reaction solution was cooled to room temperature and the precipitated crystals were collected by filtration. The resulting crude crystals were recrystallized from toluene to give the title compound (30 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785438B2
Source datasetuspto-grants-2014_07
ORD IDord-ab878942854a464fa73ff5998127cd52
Source noteuspto-grants-2014_07