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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 365968Generated: October 25, 2026

Sulfuric Acid → 1-(o-Aminophenyl)-4-hydroxy-1-butanone

https://huagongshe.com/reaction/365968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAmmonium HydroxideHCID 14923—
Reactant2'-(Cyclopropylcarbonyl)-p-toluenesulfonanilideHCID 23293245—
Product1-(o-Aminophenyl)-4-hydroxy-1-butanoneHCID 1120611880%

Reaction Conditions

Temperature90 °C

Reaction Steps

The product of example 2 (1.5 g, 4.7 mmol) is treated with 96% sulfuric acid and heated to 90° C. for 15 minutes. The solution is cooled, adjusted to pH 9 with ammonium hydroxide and extracted with methylene chloride. The combined extracts are concentrated in vacuo to provide 1-(o-aminophenyl)-4-hydroxy-1-butanone (80% yield, mp 58-61° C.). The product is identified by NMR and MS analyses.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06127576
Source datasetuspto-grants-2000_10
ORD IDord-8c713a6fd62f4a74b4bcfd81d73ab546
Source noteuspto-grants-2000_10