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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 417998Generated: October 30, 2026

Ethyl Acetoacetate → HCID 178429256, compound

https://huagongshe.com/reaction/417998

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetoacetateHCID 8868—
Reactant4-Tert-butylphenylhydrazine hydrochlorideHCID 16217458—
SolventAcetic AcidHCID 176—
ProductHCID 178429256HCID 17842925678.5%

Reaction Steps

4-t-Butylphenylhydrazine hydrochloride (24.2 g, 120 mmol) in acetic acid (600 mL) was stirred with ethyl acetoacetate (16.4 mL, 129 mmol) at 100° C. for 22 hours. The solvent was removed by distillation under reduced pressure, and the resulting solid was recrystallized from chloroform (70 ml, 40° C.)-diethyl ether (200 mL, 0° C.), washed with diethyl ether and dried under reduced pressure to give 21.7 g of the desired product (78% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093251B2
Source datasetuspto-grants-2012_01
ORD IDord-49cecee3fe5b43ebac7700385081b591
Source noteuspto-grants-2012_01