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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 964388Generated: October 31, 2026

Hydrochloric Acid → HCID 23450683, compound

https://huagongshe.com/reaction/964388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetyl chlorideHCID 6367—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 23450674HCID 23450674—
SolventDichloromethaneHCID 6344—
ProductHCID 23450683HCID 2345068372.2%

Reaction Steps

A mixed solution containing 1.91 g (9.26 mmol) of the 4-ethyl-5,8-dimethylthiochroman and dichloromethane was dropwise added to a mixed solution containing 1.49 g (11.1 mmol) of aluminum chloride, 0.82 ml (11.6 mmol) of acetyl chloride and 6 ml of dichloromethane at 0° C. and the mixture was stirred for 1.5 hours. The reaction mixture was poured into ice and a solution containing 5% hydrochloric acid and extracted with dichloromethane. The extract was washed with a saturated sodium hydrogencarbonate, dried over anhydrous sodium sulfate and filtered, and the solvent was distilled off under reduced pressure to give 1.66 g (yield 72%) of 6-acetyl-4-ethyl-5,8-dimethylthiochroman.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05767289
Source datasetuspto-grants-1998_06
ORD IDord-1e7a0e1bc48c483ea330aafd31dd204f
Source noteuspto-grants-1998_06