HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1198213Generated: October 25, 2026
Ethyl Acetoacetate → Ethyl 2Z-[(4-hexylphenyl)methylene]-3-oxobutanoate
https://huagongshe.com/reaction/1198213
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetoacetate | HCID 8868 | — |
| Reactant | Benzaldehyde, 4-hexyl- | HCID 170813 | — |
| Catalyst | Piperidine | HCID 8082 | — |
| Product | Ethyl 2Z-[(4-hexylphenyl)methylene]-3-oxobutanoate | HCID 67820812 | — |
Reaction Steps
Ethyl acetoacetate (3.9g, 0.03 moles), parahexylbenzaldehyde (3.8g, 0.02 moles) and piperidine (3 drops) were stirred at room temperature for 20 hrs. and then stirred for 4 days at 70° C. Products A and B were separated and purified by silica gel chromatography. Structure assignments were supported by NMR, infrared and uv spectra and elemental analysis (302.4).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05280047 |
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| Source dataset | uspto-grants-1994_01 |
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| ORD ID | ord-aa282224ed5b4f9c861e2e466cf56d88 |
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| Source note | uspto-grants-1994_01 |
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