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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2082536Generated: November 2, 2026

Hydrochloric Acid → HCID 10319531, compound

https://huagongshe.com/reaction/2082536

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantHCID 15043966HCID 15043966—
SolventPyridineHCID 1049—
ProductHCID 10319531HCID 1031953163%

Reaction Steps

Mix 3-amino-2-carbethoxy-4,6-dichloroindole (3.31 g, and anhydrous pyridine (50 mL). Add, by dropwise addition, phenylsulfonyl chloride (2.35 g, 13.33 mmol). Stir for 48 hours at room temperature. Pour into 1N hydrochloric acid (500 mL), extract with ethyl acetate and dry (MgSO4). Evaporate the solvent in vacuo and recrystallize (ethyl acetate/hexane) to give the title compound (3.15 g, 63%); mp 245°-7° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05189054
Source datasetuspto-grants-1993_02
ORD IDord-3581da4bf1a64f868c2f0c8a6d354408
Source noteuspto-grants-1993_02