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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249081Generated: October 30, 2026

Dimethylformamide dimethyl acetal → 3-[(Dimethylamino)Methylene]-2,4-Octanedione

https://huagongshe.com/reaction/249081

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamide dimethyl acetalHCID 78373—
Reactant2,4-OctanedioneHCID 84192—
Product3-[(Dimethylamino)Methylene]-2,4-OctanedioneHCID 54406479—

Reaction Steps

A mixture of 2,4-octanedione (7.11 g, 0.50 mole) and dimethylformamide dimethylacetal (7.15 g, 0.60 mole) was stirred overnight at room temperature under argon. The resulting red oil was concentrated on the rotary evaporation then distilled on the kugelrohr at -15 mm, 140°-155° C. to yield 8.60 g (87%) of 3-[(dimethylamino)methyleno]-2,4-octanodione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05212314
Source datasetuspto-grants-1993_05
ORD IDord-56b6c20fb270444e9bdb06a7eae2f3e7
Source noteuspto-grants-1993_05