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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1706868Generated: October 26, 2026

Piperonal → 7-Methyl-1-(3,4-methylenedioxyphenyl)octa-1,6-dien-3-one

https://huagongshe.com/reaction/1706868

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperonalHCID 8438—
Reactant6-Methyl-5-hepten-2-oneHCID 9862—
SolventSodium HydroxideHCID 14798—
Product7-Methyl-1-(3,4-methylenedioxyphenyl)octa-1,6-dien-3-oneHCID 41981—

Reaction Steps

15 g of piperonal (0.1 mole) and 12.6 g of 6-methyl-5-heptene-2-one (0.1 mole) in an aqueous-alcoholic solution of sodium hydroxide (200 cm3 of 10% NaOH+20 cm3 of ethanol) are stirred for 15 days at ambient temperature. The product obtained is filtered off, washed with water, and recrystallised from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04209517
Source datasetuspto-grants-1980_06
ORD IDord-3017d784726a437c9e8a29d53eee8c17
Source noteuspto-grants-1980_06