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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1282989Generated: October 26, 2026

Acetaldehyde → Acetaldehyde-3,4-ethylenedioxyphenylhydrazone

https://huagongshe.com/reaction/1282989

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetaldehydeHCID 177—
Reactant(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-hydrazineHCID 5164485—
SolventDiethyl EtherHCID 3283—
ProductAcetaldehyde-3,4-ethylenedioxyphenylhydrazoneHCID 6811994578.3%

Reaction Steps

To a solution of 17 g of 3,4-ethylenedioxyphenylhydrazine in 100 ml of ether was added dropwise 11 g of 80 % acetaldehyde at 5° - 10°C over a period of 30 minutes. After stirring for an additional 2 hours at 5° - 10°C, the ethereal solution was separated, and dried over anhydrous sodium sulfate. The ether was evaporated, and the resultant residue was distilled to give 15.4 g of acetaldehyde-3,4-ethylenedioxyphenylhydrazone having a boiling point of 139° - 142°C (0.15 mmHg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03974145
Source datasetuspto-grants-1976_08
ORD IDord-39bd3b7e9c7f48fe9b694934a08cd725
Source noteuspto-grants-1976_08