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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1602103Generated: October 30, 2026

Hydrochloric Acid → HCID 19610455, compound

https://huagongshe.com/reaction/1602103

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant1-(4-Nitrophenyl)-1H-imidazoleHCID 123155—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 19610455HCID 1961045596%

Reaction Steps

A mixture of 4-(imidazol-1-yl)nitrobenzene (89.60 g, 0.474 mol) and 10% palladium on carbon (4.50 g) in ethanol (1200 ml) and 5N HCl (189 ml) was hydrogenated in two batches at 40 psi for 80 minutes. Water (450 ml) was then added to dissolve the product and the catalyst was removed by filtration. washing with more water, and the combined filtrates were evaporated in vacuo, using finally a freeze drier, to give 105.4 g (96%) of the title compound as a cream solid. δH (250 MHz, D2O) 7.22 (2H, d, J=8.8 Hz), 7.35 (1H, t, J=2.1 Hz), 7.44 (2H, d, J=9.0 Hz). 7.59 (1H, t, J=1.8 Hz), 8.89 (1H, t, J=1.5 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05981529
Source datasetuspto-grants-1999_11
ORD IDord-46630e1fca0145a39211554a56516aca
Source noteuspto-grants-1999_11