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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1985778Generated: October 29, 2026

p-Toluidine → HCID 178426352, compound

https://huagongshe.com/reaction/1985778

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-ToluidineHCID 7813—
ReactantHCID 178516237HCID 178516237—
SolventPropan-2-one--water (1/1)HCID 18366337—
ProductHCID 178426352HCID 17842635232%

Reaction Steps

2,3-dihydroxypyridine (0.0027 mol), p-methylaniline (0.0054 mol), and NaIO3 (0.0009 mol) were dissolved in 160 ml water/acetone (80:1, v/v) solvent. The reaction mixture was stirred for 2 hours; and maintained still overnight. It was then filtered and recrystallized with chloroform. The final product was 5,6-di(p-tolylamino)-2,3-pyridindione in a red powder. The yield was 32%-54%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07547713B2
Source datasetuspto-grants-2009_06
ORD IDord-7166a6b5a3084f2bb4980137726b2b02
Source noteuspto-grants-2009_06