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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2111626Generated: November 1, 2026

Water → HCID 23084563, compound

https://huagongshe.com/reaction/2111626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3-AminopyridineHCID 10009—
Reactant5,6-Dimethyl-2-benzofuran-1,3-dioneHCID 226644—
SolventAcetic AcidHCID 176—
ProductHCID 23084563HCID 2308456382.9%

Reaction Steps

4,5-dimethylphthalic anhydride (2.0 g, 11 mmol) and 3-aminopyridine (1.0 g, 11 mmol) were heated under reflux in acetic acid (30 ml) for 1.5 hrs. After standing to cool, water was added thereto, the precipitated crystals were collected by filtration, washed with water, followed by drying to give 2.3 g of 5,6-dimethyl-2-(3-pyridyl)isoindolin-1,3-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07521451B2
Source datasetuspto-grants-2009_04
ORD IDord-1e1eaff382f64b30aa13f5566ec35aa3
Source noteuspto-grants-2009_04