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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 401013Generated: October 30, 2026

Hydrochloric Acid → HCID 51347931, compound

https://huagongshe.com/reaction/401013

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 numberUS08741915B2
Source datasetuspto-grants-2014_06
ORD IDord-f3631cdd5f0a4fbeaef43412df14fb0b
Source noteuspto-grants-2014_06