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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1402773Generated: October 31, 2026

Methanol → HCID 66759374, compound

https://huagongshe.com/reaction/1402773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantO-PhenylenediamineHCID 7243—
Reactant4-(4-Chlorophenyl)dihydro-2H-pyran-2,6(3H)-dioneHCID 104639—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66759374HCID 66759374—

Reaction Steps

The solution of commercial 1,2-phenylenediamine (1.08 g) and 3-(4-chlorophenyl)glutaric anhydride (2.25 g) in 1,4-dioxane (7 ml) was stirred at rt for 10 min. A voluminous precipitate is formed which is kept at rt for further 50 min. The thick slurry is heated to reflux with methanol, cooled to rt, isolated by suction filtration, and washed with methanol. After drying in vacuo N-(2-aminophenyl)-3-(4-chlorophenyl)glutaramic acid (2.1 g) is obtained as off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912186B2
Source datasetuspto-grants-2014_12
ORD IDord-d4dd595954804945991d5798438125cd
Source noteuspto-grants-2014_12