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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249089Generated: October 29, 2026

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

https://huagongshe.com/reaction/249089

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 numberUS05212315
Source datasetuspto-grants-1993_05
ORD IDord-4655d936729045fca89af9faef6a7fc7
Source noteuspto-grants-1993_05