Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885038Generated: November 2, 2026

Hydrochloric Acid → HCID 9879787, compound

https://huagongshe.com/reaction/1885038

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant2-TetraloneHCID 68266—
Reactant4-(Methylsulfonyl)benzaldehydeHCID 220376—
SolventAcetic AcidHCID 176—
SolventDichloromethaneHCID 6344—
SolventEthyl acetate hexaneHCID 21226206—
ProductHCID 9879787HCID 987978778%

Reaction Conditions

Temperature7.5 °C

Reaction Steps

4-methylsulfonylbenzaldehyde (1.0 g, 5.43 mmol) was dissolved in glacial acetic acid (20 ml) and con. Hydrochloric acid (10 ml) was added and cooled at 5-10° C. Then, beta-tetralone (0.72 ml, 5.45 mmol) was dropped slowly and stirred for 3 hours at the same temperature. At room temperature, water (200 ml) and dichloromethane (200 ml) were poured, separated with layers, washed with the saturated brine, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by performing a silica gel column chromatography (an eluting agent: ethylacetate/n-hexane=2/3, v/v) and 1.32 g of the present compound (productive yield 78%) was obtained as a yellow crystal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06768019B2
Source datasetuspto-grants-2004_07
ORD IDord-30ad5297645544aaae28bdd8148a8239
Source noteuspto-grants-2004_07