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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1193517Generated: November 1, 2026

Sulfuric Acid → HCID 21272298, compound

https://huagongshe.com/reaction/1193517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 21272324HCID 21272324—
SolventWaterHCID 962—
ProductHCID 21272298HCID 2127229885.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-(1-phenyl-1H-pyrazol-3-yl)aminophenol (2.0 g), acetic anhydride (4 g) and sulphuric acid (0.2 g) was heated at 100° C. on the steam bath for 15 minutes, water was added and the product was collected by filtration and dried to give the sub-title compound (2.0 g) as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04810719
Source datasetuspto-grants-1989_03
ORD IDord-c7b934a42c4a48df9b962b340b27a5ae
Source noteuspto-grants-1989_03