HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58539Generated: October 29, 2026
Ethanol → Ethyl 5-(hydroxymethyl)-4,5-dihydro-1,2-oxazole-3-carboxylate
https://huagongshe.com/reaction/58539
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Dabco | HCID 9237 | — |
| Reactant | Ethyl nitroacetate | HCID 69379 | — |
| Product | Ethyl 5-(hydroxymethyl)-4,5-dihydro-1,2-oxazole-3-carboxylate | HCID 23643400 | 93% |
Reaction Steps
To a mixture of allylic alcohol (0.650 mL; 9.35 mmol) and ethyl 2-nitroacetate (2.65 mL; 23.37 mmol) in ethanol (12 mL) in an Ace pressure tube was added 1,4-diazobicyclo[2.2.2]octane (DABCO, 0.189 g; 1.64 mmol). The tube was heated at 80° C. for 48 h. The mixture was evaporated. The flash chromatography on silica gel (eluent: 0 to 6% of methanol in dichloromethane) of the residue provided 1.51 g (93%) of ethyl 5-(hydroxymethyl)-4,5-dihydroisoxazole-3-carboxylate as an oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09434722B2 |
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| Source dataset | uspto-grants-2016_09 |
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| ORD ID | ord-f4173b6f80c14c3ea34fbd1332d9baaa |
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| Source note | uspto-grants-2016_09 |
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