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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2177893Generated: November 1, 2026

Hydrochloric Acid → HCID 51347931, compound

https://huagongshe.com/reaction/2177893

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantUreaHCID 1176—
Reactant3-Ethoxy-4-hydroxy-5-nitrobenzaldehydeHCID 584878—
Reactant3'-Fluoro-2-phenylacetophenoneHCID 2759062—
SolventEthanolHCID 702—
ProductHCID 51347931HCID 5134793113%

Reaction Steps

A mixture of 1-(3-fluorophenyl)-2-phenylethanone (100 mg, 0.47 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (82 mg, 0.39 mmol), urea (70 mg, 1.17 mmol), and concentrated HCl solution (0.03 mL, 0.39 mmol) in EtOH (5 mL) was refluxed overnight. The mixture was evaporated in vacuo and purified by preparative HPLC to give Compound 32 (22.35 mg, yield 13%) as a yellow solid. 1H NMR (DMSO-d6 400 MHz): δ 10.28 (s, 1H), 8.79 (s, 1H), 7.56 (s, 1H), 7.42 (s, 1H), 7.30-7.25 (m, 1H), 7.16 (s, 1H), 7.12-6.99 (m, 6H), 6.86 (d, J=7.6 Hz, 2H), 5.23 (d, J=2.4 Hz, 1H), 4.04 (q, J=7.2 Hz, 2H), 1.33 (t, J=7.2 Hz, 3H); MS (ESI): m/z 450.0 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09067893B2
Source datasetuspto-grants-2015_06
ORD IDord-13229de2a2004eb3b0af5f161757e8bb
Source noteuspto-grants-2015_06