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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980504Generated: October 29, 2026

Propionyl chloride → 1-(2-Methyl-3,4-dihydro-2H-1-benzothiopyran-6-yl)propan-1-one

https://huagongshe.com/reaction/980504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropionyl chlorideHCID 62324—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 12322222HCID 12322222—
Solvent1,2-DichloroethyleneHCID 10900—
Product1-(2-Methyl-3,4-dihydro-2H-1-benzothiopyran-6-yl)propan-1-oneHCID 1378527258%

Reaction Steps

83 gr. (0.5M) of 2-methyl-thiochromane are treated with 43.2 ml of propionyl chloride (0.5M) in the presence of 73 gr. of AlCl3 (0.55M) in 750 ml of 1,2-dichloroethylene in the already described preceding examples. 64 gr. of 2-methyl-6-propionyl-thiochromane are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04638070
Source datasetuspto-grants-1987_01
ORD IDord-6c402af002e24e068761c584b82b1080
Source noteuspto-grants-1987_01