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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2082511Generated: November 3, 2026

Hydrochloric Acid → HCID 57124046, compound

https://huagongshe.com/reaction/2082511

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 57275427HCID 57275427—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57124046HCID 5712404657%

Reaction Steps

Mix 3-[(phenacyl)ethylamino]-2-carbethoxy-4,6-dichloroindole (600 mg, 1.48 mmol), water (10 mL) and tetrahydrofuran (10 mL). Add lithium hydroxide monohydrate (0.22 g, 5.18 mmol) and stir at room temperature for 24 hours. Heat to reflux for 5 hours then pour into 1N hydrochloric acid (100 mL). Extract into ethyl acetate, dry (MgSO4) and evaporate the solvent in vacuo to give the crude product (0.72 g) as a white solid. Recrystallize (ethyl acetate/hexane) to give the title compound (0.32 g, 57%); mp 254°-6° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05189054
Source datasetuspto-grants-1993_02
ORD IDord-a304f90826de418f904d28a58df431a9
Source noteuspto-grants-1993_02