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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1246196Generated: October 30, 2026

Hydrochloric Acid → HCID 178437177, compound

https://huagongshe.com/reaction/1246196

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 numberUS07125891B2
Source datasetuspto-grants-2006_10
ORD IDord-6b51e0f4b5c54301a0e90a7e8d60e68e
Source noteuspto-grants-2006_10