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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2088951Generated: November 1, 2026

O-Xylene → HCID 67078397, compound

https://huagongshe.com/reaction/2088951

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 numberUS08436012B2
Source datasetuspto-grants-2013_05
ORD IDord-dd8238a96ae14cadbcf3b86e4ff73626
Source noteuspto-grants-2013_05