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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2090827Generated: October 31, 2026

Methyl acetoacetate → HCID 178498883, compound

https://huagongshe.com/reaction/2090827

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantDimethylformamide dimethyl acetalHCID 78373—
SolventEthanolHCID 702—
ProductHCID 178498883HCID 17849888361%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of methyl acetoacetate (30.0 g) and dimethylformamide dimethylacetal (34.7 mL) was stirred at 100° C. for 12 hr, and the mixture was allowed to cool. Ethanol (500 mL) and hydrazine monohydrate (12.6 mL) were added to the reaction mixture at room temperature, and the mixture was heated under reflux for 12 hr. The mixture was allowed to cool, and concentrated under reduced pressure. Water was added to the residue, and the mixture was extracted with ethyl acetate. The extract was concentrated under reduced pressure to give the title object compound (22.3 g, 61%) as a pale-yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436043B2
Source datasetuspto-grants-2013_05
ORD IDord-2931f78376b1455c9aaf1fcfba25d64f
Source noteuspto-grants-2013_05