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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2297863Generated: October 31, 2026

Ethanol → HCID 178517003, compound

https://huagongshe.com/reaction/2297863

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHCID 1133837HCID 1133837—
Reactant8-[Ethoxymethylidene]-6H-[1,3]thiazolo[5,4-e]indol-7-oneHCID 53990807—
SolventWaterHCID 962—
ProductHCID 178517003HCID 17851700374.7%

Reaction Steps

To a 250-ml round bottom flask was added a magnetic stir bar, 8-[ethoxymethylidene]-6H-[1,3]thiazolo[5,4-e]indol-7-one (1.98 grams, 8.05 mmol), 4-amino-N-(4-pyridinylmethyl)benzenesulfonamide (2.16 grams, 8.2 mmol) and 95% ethanol (80 ml). The round bottom reaction flask was fitted with a water cooled reflux condenser. The reaction vessel was placed in an oil bath at room temperature with stirring and the temperature of the oil bath was then raised to a gentle reflux and maintained at that temperature for approximately 36 hours. The reaction vessel was removed from the oil bath and the hot mixture was filtered with the solids being collected by suction filtration. The resultant solid was washed with excess 95% ethanol and collected by suction filtration. The solid was then dried under vacuum for two days at room temperature to yield 2.785 grams (74.7%) of the thiazolindolinone compound. MS (M+H)=464.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06492398B1
Source datasetuspto-grants-2002_12
ORD IDord-3c8c66e556494605906665155713b3c3
Source noteuspto-grants-2002_12