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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1886050Generated: October 26, 2026

Water → 2-((2-Aminophenyl)amino)ethan-1-ol

https://huagongshe.com/reaction/1886050

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantStannous ChlorideHCID 24479—
ReactantHC Yellow No. 2HCID 78637—
SolventEthanolHCID 702—
Product2-((2-Aminophenyl)amino)ethan-1-olHCID 211403286%

Reaction Steps

According to the procedure of B. Agai, et al., Tetrahedron, 32, 839, (1976), a mixture of 2-(2-nitroanilino)ethanol (43.1 g, 0.237 mol), SnCl2.2 H2O (267.0 g, 1.18 mol), and EtOH (400 mL), was heated under reflux for 4 hours. The mixture was cooled, made basic (pH8) with 2.5N NaOH, and filtered through Celite. The filtrate was concentrated to remove the EtOH and the aqueous phase was extracted with EtOAc. The combined extracts were washed with H2O and brine, dried, and concentrated. Recrystallization from EtOH gave 31.0 g (86%) of a brown solid m.p. 105°-106° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05149700
Source datasetuspto-grants-1992_09
ORD IDord-08bb1e59f38047dc92ca8cb59ef45519
Source noteuspto-grants-1992_09