HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068033Generated: November 4, 2026
Diethyl (ethoxymethylene)malonate → HCID 21192567, compound
https://huagongshe.com/reaction/1068033
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl (ethoxymethylene)malonate | HCID 6871 | — |
| Reactant | HCID 21192615 | HCID 21192615 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 21192567 | HCID 21192567 | — |
Reaction Steps
A flask containing N-[4-(4-morpholinylmethyl)phenyl]tetrahydro-2H-pyran-4-amine (0.34 g) is treated with diethyl ethoxymethylenemalonate (0.30 mL) and pyridine (0.20 mL). The flask is tightly capped and heated to 140° C. for 2 hours. The reaction is cooled to room temperature and azeotroped under reduced pressure with toluene (3×). The residue is dissolved in dichloromethane and washed with water, brine, dried and concentrated under reduced pressure. The residue is chromatographed on silica eluting with 2% to 6% methanol in dichloromethane. The product-containing fractions are evaporated to give 0.41 g of diethyl 2-{[4-(4-morpholinylmethyl)(tetrahydro-2H-pyran-4-yl)anilino]methylene}malonate as a tan oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06248739B1 |
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| Source dataset | uspto-grants-2001_06 |
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| ORD ID | ord-610da5d5d13941d293b1c97ac2ccb68f |
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| Source note | uspto-grants-2001_06 |
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