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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1901128Generated: October 31, 2026

Hydrochloric Acid → 4-(3-Furyl)-7-mercaptocoumarin

https://huagongshe.com/reaction/1901128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrabutylammonium FluorideHCID 2724141—
Reactant7-(2-Trimethylsilylethylthio)-4-(3-furyl)coumarinHCID 23370244—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
Product4-(3-Furyl)-7-mercaptocoumarinHCID 23370194—

Reaction Steps

The coumarin from Step 1 (963 mg) was dissolved in DMF (25 mL) and to this solution there was added Bu4NF 1M in THF (8.4 mL). The mixture was stirred at r.t. for 2 h, poured onto 1N aqueous HCl (50 mL), diluted with H2O (50 mL) and filtered to afford the title compound as a tan solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05576338
Source datasetuspto-grants-1996_11
ORD IDord-4c99c5efa2be44f4b1ff6a4c589ac0db
Source noteuspto-grants-1996_11