HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973410Generated: November 2, 2026
Diethyl (ethoxymethylene)malonate → HCID 86733250, compound
https://huagongshe.com/reaction/1973410
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl (ethoxymethylene)malonate | HCID 6871 | — |
| Reactant | Ethyl 2-Amino-5-methylthiophene-3-carboxylate | HCID 4062885 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 86733250 | HCID 86733250 | — |
Reaction Steps
A mixture of 3.7 parts of ethyl 2-amino-5-methylthiophene-3-carboxylate and 4.4 parts of diethyl ethoxymethylenemalonate is heated at 110° C for 1.5 hour. After cooling ethanol is added and the crystals are collected by filtration, whereby diethyl (3-ethoxycarbonyl-5-methylthienyl)aminomethylenemalonate is obtained as crystals. Recrystallization from ethanol give pale yellow needles melting at 67°-68° C
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US03997545 |
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| Source dataset | uspto-grants-1976_12 |
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| ORD ID | ord-9f2d165c3d9f4202b2b3c85cab873440 |
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| Source note | uspto-grants-1976_12 |
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