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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 887916Generated: October 31, 2026

Hydrochloric Acid → HCID 178437177, compound

https://huagongshe.com/reaction/887916

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 178437175HCID 178437175—
ProductHCID 178437177HCID 178437177105.8%

Reaction Steps

1-acetyl-2-(4-ethyl-1H-imidazol-2-yl)-2,3-dihydro-1H-indole (0.0035 mol) and HCl, 6N (50 ml) were combined under nitrogen atmosphere. The reaction mixture was heated immediately and the heating was continued for 3.5 hours. The mixture was allowed to cool to room temperature, then extracted with diethylether (2×75 ml), cooled to 0° C., alkalized (with cooled 3 N NaOH), then extracted with chloroform (3×60 ml). The combined organic layers were dried, filtered and the solvent was evaporated, yielding 0.79 g of 2-(4-ethyl-1H-imidazol-2-yl)-2,3-dihydro-1H-indole (intermediate 15).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08247432B2
Source datasetuspto-grants-2012_08
ORD IDord-609c7cc8607047ceb21667207207753d
Source noteuspto-grants-2012_08