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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 375639Generated: October 31, 2026

Water → HCID 53746941, compound

https://huagongshe.com/reaction/375639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 18993308HCID 18993308—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 53746941HCID 5374694176.3%

Reaction Steps

To a solution of 3-(4-methylthiophenyl)indole (7.34 g, 30.7 mmol), prepared as in step 1, in dimethoxyethane (75 mL) was added powdered KOH (85%, 7.01 g, 125 mmol) and benzenesulfonyl chloride (4.25 mL, 33.3 mmol). A white precipitate formed immediately and the reaction mixture became quite warm. The reaction mixture was stirred for 1 hour during which time it cooled to ambient temperature. Water (50 mL) was added and the mixture was extracted with ethyl acetate. The organic phase was washed with H2O and brine, dried over Na2SO4, filtered, and concentrated in vacuo. 1-phenylsulfonyl-3-(4-methylthiophenyl)indole (8.89 g, 76% yield) was obtained by chromatography on silica gel (10%, then 20% ethyl acetate/hexanes).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05486525
Source datasetuspto-grants-1996_01
ORD IDord-d0dc6f0ae5c64039ab8e88c66e5f02d6
Source noteuspto-grants-1996_01