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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1488206Generated: November 4, 2026

Methyl acetoacetate → Methyl 2-[(dimethylamino)methylene]acetoacetate

https://huagongshe.com/reaction/1488206

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
ReactantDimethylformamide dimethyl acetalHCID 78373—
ProductMethyl 2-[(dimethylamino)methylene]acetoacetateHCID 17874501—

Reaction Conditions

Temperature80 °C

Reaction Steps

Into a 250-mL round-bottom flask, was placed methyl 3-oxobutanoate (10.8 g, 92.6 mmol) and (dimethoxymethyl)dimethylamine (12.7 mL, 95.3 mmol). The resulting solution was stirred for 2.5 h at 80° C., then concentrated under reduced pressure to yield 14.5 g (crude) of the title compound as a red solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09428502B2
Source datasetuspto-grants-2016_08
ORD IDord-63f9962e09584cef8fb23b8ceb188d07
Source noteuspto-grants-2016_08