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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1385422Generated: November 1, 2026

Sodium Hydroxide → HCID 21184825, compound

https://huagongshe.com/reaction/1385422

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantStannous ChlorideHCID 24479—
ReactantHCID 21184591HCID 21184591—
SolventEthanolHCID 702—
ProductHCID 21184825HCID 2118482579%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 2-hydroxy-3-nitro-5-indanone (1.50 g, 7.80 mmol) and tin (II) chloride (5.25 g, 23.3 mmol) in ethanol (150 mL) was heated at 80° C. under argon. After 2 hours, the starting material had 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/CH2CH2) gave the desired product (0.00 g, 79%). 1H NMR (CD3OD): d 6.85 (d, 1H), 6.45 (d, 1H), 2.95 (d, 2H), 2.60 (d, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06262113B1
Source datasetuspto-grants-2001_07
ORD IDord-29dae5d66ef0412ab1638a414d09d85d
Source noteuspto-grants-2001_07