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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 924872Generated: October 31, 2026

Hydrochloric Acid → HCID 51349080, compound

https://huagongshe.com/reaction/924872

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantUreaHCID 1176—
Reactant3-Ethoxy-4-hydroxy-5-nitrobenzaldehydeHCID 584878—
Reactant1-(2-Methylphenyl)-2-phenylethan-1-oneHCID 6613313—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 51349080HCID 513490808%

Reaction Steps

A mixture of 2-phenyl-1-o-tolylethanone (commercially available) (200 mg, 0.95 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (183 mg, 0.86 mmol), urea (156 mg, 2.59 mmol), concentrated HCl (0.07 mL, 0.86 mmol) in EtOH (5 mL) was refluxed overnight. Followed standard aqueous/EtOAc workup, then purified by preparative HPLC to give Compound 114 (31.75 mg, yield 8%). 1H NMR (DMSO-d6 400 MHz): δ 10.33 (br, 1H), 8.59 (s, 1H), 7.51-7.44 (m, 2H), 7.23-7.13 (m, 4H), 6.96-6.89 (m, 4H), 6.80-6.77 (m, 2H), 5.36-5.21 (m, 1H), 4.08-3.99 (m, 2H), 2.36 (s, 1.6H), 2.13 (s, 1.3H), 1.34-1.28 (m, 3H); MS (ESI): m/z 446.0 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09283229B2
Source datasetuspto-grants-2016_03
ORD IDord-e47eb7c69cdd444e95ad1295c1d3f01d
Source noteuspto-grants-2016_03