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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1984517Generated: November 2, 2026

Water → HCID 66958389, compound

https://huagongshe.com/reaction/1984517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHCID 66958716HCID 66958716—
SolventAcetic AcidHCID 176—
SolventHydrochloric AcidHCID 313—
ProductHCID 66958389HCID 6695838951.3%

Reaction Steps

A solution of ethyl 5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-1-methyl-1H-pyrazole-3-carboxylate (8.13 g, 25.9 mmol) in hydrochloric acid (33 mL of 1 M) and acetic acid (33 mL) was heated at reflux intermittently for six hours and allowed to cool to room temperature; a precipitate formed. Water was added, and the solid was isolated by filtration, washed with water, and dried on the vacuum filter funnel for two days to provide 3.79 g of 5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-1-methyl-1H-pyrazole-3-carboxylic acid as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07544697B2
Source datasetuspto-grants-2009_06
ORD IDord-9f319ac1a0c04edeb932e96eeb13b711
Source noteuspto-grants-2009_06