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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 332573Generated: October 31, 2026

Hydrochloric Acid → HCID 42596963, compound

https://huagongshe.com/reaction/332573

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 57701110HCID 57701110—
CatalystCuprous chlorideHCID 62652—
SolventWaterHCID 962—
ProductHCID 42596963HCID 4259696333%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a 250 mL flask which contained the suspension of 3-[2-fluoro-3-(4-fluoro-benzyl)-6-methoxy-phenoxy]-phenylamine (P-02) (135 mg, 0.4 mmole) in aq HCl (12 N. 5 mL) was slowly added the solution of sodium nitrite (50 mg, 0.7 mmole) in water (3 mL) at 0° C. The mixture was allowed to stir at 0° C.-5° C. for 1 h, and then was cooled to 0° C. A solution of copper(I) chloride (55 mg, 0.4 mmol) in aq. HCl (12 N. 2 mL)) was added at 0° C. and the reaction mixture which resolved was allowed warm to rt and stir at rt for 1 h. The mixture was poured into 50 mL ice-water, extracted with ethyl acetate (3×30 mL), washed with water (2×30 mL), NaHCO3 (sat. 30 mL), brine (30 mL) and dried over Na2SO4. After removal of solvent, the residue was purified by Prep TLC with ethyl acetate/Hexane as eluent to give 45 mg (33% yield) of product P-03.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877816B2
Source datasetuspto-grants-2014_11
ORD IDord-b11de44caa2240df804b633ff445f989
Source noteuspto-grants-2014_11