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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 557428Generated: October 31, 2026

Acetic Acid → HCID 66991936, compound

https://huagongshe.com/reaction/557428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantIsopropyl acetoacetateHCID 68329—
Reactant(2Z)-3-Amino-2-butenenitrileHCID 5325263—
Reactant2-Methyl-5-nitro-4-oxo-4H-1-benzopyran-8-carbaldehydeHCID 57828652—
SolventIsopropanolHCID 3776—
ProductHCID 66991936HCID 66991936—

Reaction Steps

32 mg (0.137 mmol) of 2-methyl-5-nitro-4-oxo-4H-chromene-8-carbaldehyde are dissolved with 19.7 mg (0.137 mmol) of isopropyl acetoacetate, 11.26 mg (0.137 mmol) of 3-aminocrotononitrile and 8.24 mg (0.137 mmol) of acetic acid in 3 ml of 2-propanol and heated under reflux under argon for 6 h. The solvent is removed in vacuo, and the residue is purified by preparative HPLC. 13 mg (22.3% of theory) of the title compound are obtained as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08058447B2
Source datasetuspto-grants-2011_11
ORD IDord-9f6244508bec478b98dd8281d4cf3df0
Source noteuspto-grants-2011_11