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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1088837Generated: November 5, 2026

Hydrochloric Acid → 4-(3,4-Dihydroxy-5-nitrophenyl)-3-methylbut-3-en-2-one

https://huagongshe.com/reaction/1088837

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantMethyl Ethyl KetoneHCID 6569—
Reactant3,4-Dihydroxy-5-nitrobenzaldehydeHCID 5748957—
Product4-(3,4-Dihydroxy-5-nitrophenyl)-3-methylbut-3-en-2-oneHCID 54009949—

Reaction Steps

A solution containing 0.5 g of 3,4-dihydroxy-5-nitrobenzaldehyde in 2.0 ml of butanone was saturated with gaseous hydrogen chloride. After standing over night ether was added to the solution and it was filtered. The product was crystallized from isopropanol, yield 0.2 g (30%), m.p.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04963590
Source datasetuspto-grants-1990_10
ORD IDord-4b8a45e1167149a7a3fbbb1ffd0793b1
Source noteuspto-grants-1990_10