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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 631941Generated: October 30, 2026

Acetic Acid → 3,4-METHYLENEDIOXYBENZYLIDENE ANILINE

https://huagongshe.com/reaction/631941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantEthanolHCID 702—
ReactantAnilineHCID 6115—
ReactantPiperonalHCID 8438—
SolventWaterHCID 962—
Product3,4-METHYLENEDIOXYBENZYLIDENE ANILINEHCID 14137345%

Reaction Steps

Piperonal (0.63 g, 4.22 mmol), ethanol (4 ml), and aniline (0.38 g, 4.22 mmol) were put in a 25 ml flask, and acetic acid (10 ml) was slowly added dropwise thereto while the mixture was stirred under nitrogen charging conditions, followed by stirring at 80° C. for 12 hours. Then, the temperature of the mixture was lowered to 0° C., followed by the addition of a little water to obtain a solid. The filtering was performed while the solid was washed with cool ethanol, thereby giving clean E)-N-(benz[d][1,3]dioxol-5-ylmethylene)aniline (LJ-2477) with a yield of 45%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321751B2
Source datasetuspto-grants-2016_04
ORD IDord-115edcab6dac4df4a3ba19862198ee29
Source noteuspto-grants-2016_04