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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 323083Generated: October 25, 2026

Sodium Hydroxide → 2-Amino-3-chlorophenol

https://huagongshe.com/reaction/323083

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): d 6.75 (t,1H), 6.70 (d, 1H), 6.65 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211373B1
Source datasetuspto-grants-2001_04
ORD IDord-e8d72366cf9447e4bb50ed3220da5c0b
Source noteuspto-grants-2001_04