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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2073401Generated: October 30, 2026

Hydrochloric Acid → HCID 19858084, compound

https://huagongshe.com/reaction/2073401

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantHCID 19858085HCID 19858085—
SolventWaterHCID 962—
ProductHCID 19858084HCID 19858084—

Reaction Steps

A mixture of 8-(1-hydroxy-2,2,2-trifluoroethyl)-1,1-dimethyl-2(1H)-naphtho[2,1-b]furanone (0.04 g), pyridine (0.5 ml) and tosyl chloride (0.04 g) was stirred at room temperature for 18 h and then heated at 50° for 6 h. The mixture was cooled to room temperature, treated with water (10 ml) and the mixture was stirred at room temperature for 5 minutes and acidified with 2N aqueous hydrochloric acid. The mixture was extracted with ethyl acetate and the extract was dried and evaporated to dryness under reduced pressure to give the required starting material, 1,1-dimethyl-8-(2,2,2-trifluoro-1-tosyloxyethyl)-2(1H)-naphtho[2,1-b]furanone, which was used without further purification. ##STR3##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04916148
Source datasetuspto-grants-1990_04
ORD IDord-4e0692dcad9d4e9d8d3fd31c1519e1a4
Source noteuspto-grants-1990_04