Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | 2-Methyl-2-nitropropane | HCID 11672 | — |
| Reactant | 1H-pyrazole-4-carbaldehyde | HCID 5130673 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178449926 | HCID 178449926 | — |
Reaction Steps
To a suspension of 1,1-dimethylnitroethane (546.0 mg, 5.29 mmol) and zinc (515.5 mg, 7.89 mmol) in ethanol (3.0 ml) was added acetic acid (950.0 mg, 15.8 mmol) dropwise at 5° C. while stirring. The mixture was stirred at room temperature for 45 minutes. After cooling the mixture to 5° C. again, pyrazole-4-carbaldehyde (255.4 mg, 2.66 mmol) was added dropwise to the mixture while stirring and stirred at room temperature overnight. Zinc acetate in the mixture was filtered off and the filtrate was concentrated and purified by silica gel chromatography (chloroform/methanol=10/1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06194461B1 |
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| Source dataset | uspto-grants-2001_02 |
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| ORD ID | ord-3dda7806b29f49648e56e330b8acec06 |
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| Source note | uspto-grants-2001_02 |
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