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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1680553Generated: November 2, 2026

Sulfuric Acid → 4-Hydroxybenzaldehyde

https://huagongshe.com/reaction/1680553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant4-AminobenzaldehydeHCID 11158—
SolventDimethylformamideHCID 6228—
Product4-HydroxybenzaldehydeHCID 12623%

Reaction Steps

The procedure of Example 1 was repeated except that the N,N-dimethylformamide was not added and p-aminobenzaldehyde was reacted with sulphuric acid in 40% aqueous solution at 40° C. for one hour, to obtain p-hydroxybenzaldehyde in a yield of 23%, based on the weight of p-nitrotoluene used.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04273941
Source datasetuspto-grants-1981_06
ORD IDord-0382e662b38a4136942b1872cea9770f
Source noteuspto-grants-1981_06