HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 178469943, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | 4-ethyl 1-tert-butyl 3-(methoxymethoxy)-1H-pyrazole-1,4-dicarboxylate | HCID 69216511 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 178469943 | HCID 178469943 | 77% |
Reaction Steps
A mixture of 4-ethyl 1-tert-butyl 3-(methoxymethoxy)-1H-pyrazole-1,4-dicarboxylate (3.52 g), lithium hydroxide monohydrate (1.47 g), tetrahydrofuran (60 mL), methanol (30 mL) and water (30 mL) was stirred at room temperature for hrs. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate-hexane (1:9-4:1, v/v) to give ethyl 3-(methoxymethoxy)-1H-pyrazole-4-carboxylate as a colorless solid (1.80 g, yield 77%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07368578B2 |
| Source dataset | uspto-grants-2008_05 |
| ORD ID | ord-433cb0bc2097432e96a4e66cc8802922 |
| Source note | uspto-grants-2008_05 |