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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270178Generated: October 30, 2026

Hydrochloric Acid → HCID 21964360, compound

https://huagongshe.com/reaction/270178

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67073561HCID 67073561—
SolventWaterHCID 962—
ProductHCID 21964360HCID 21964360—

Reaction Steps

To a solution of NaOH (1.4 mmol) in a 1:1 mixture of methanol:H2O (6 mL) is added 4-(2-chlorophenyl)-2-(1,3-dioxo-1,3-dihydroisoindol-2-yl)-thiophene-3-carboxylic acid ethyl ester (0.7 mmol, Example 8, Part C). The mixture is heated to reflux for 90 min, then diluted with water (12 mL), chilled in an ice bath, and acidified with concentrated HCl. The product that precipitates is collected by filtration, washed with water, and dried, affording the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449490B2
Source datasetuspto-grants-2008_11
ORD IDord-26b5d2aa049443608c1d716c5f6e7eca
Source noteuspto-grants-2008_11