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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1195931Generated: November 2, 2026

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

https://huagongshe.com/reaction/1195931

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. 139°-141° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05112861
Source datasetuspto-grants-1992_05
ORD IDord-f1b1fa0801bf483a8fe548f1efdb8fcf
Source noteuspto-grants-1992_05