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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 568029Generated: October 25, 2026

Sodium Hydroxide → 2-Amino-3-chlorophenol

https://huagongshe.com/reaction/568029

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantStannous ChlorideHCID 24479—
Reactant3-Chloro-2-nitrophenolHCID 13622170—
SolventEthanolHCID 702—
Product2-Amino-3-chlorophenolHCID 1982896271.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 3-chloro-2-nitrophenol(250 mg, 1.4 mmol) and tin (II) chloride (1.2 g, 5.3 mmol) in ethanol(50 mL) was heated at 80° C. under argon. After 2 hours, the starting material has disappeared and the solution was allowed to cool down and then poured into ice. The pH was made slightly basic (pH7-8), by addition of solid NaOH, before being extracted with ethyl acetate. The organic phase was washed with brine, dried over MgSO4 and filtered. The solvent was evaporated and chromatography of the resulting solid on silica gel (4% MeOH/CH2Cl2) gave the desired product(143 mg, 69%). 1H NMR (CD3OD): δ 6.75 (t,1H), 6.70 (d, 1H), 6.65 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06180675B2
Source datasetuspto-grants-2001_01
ORD IDord-7ad9a02a53f94dfe894eb79d87229226
Source noteuspto-grants-2001_01