Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | Ethyl propiolate | HCID 12182 | — |
| Reactant | HCID 178513301 | HCID 178513301 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178469886 | HCID 178469886 | 44.1% |
Reaction Steps
To a solution of N-hydroxy-4-(trifluoromethyl)benzamidine (3.0 g) in ethanol (30 ml) was added ethyl acetylenecarboxylate (1.44 g), and stirred at 80° C. for 26 hours. After the solvent was evaporated, diphenylether (15 ml) was added thereto, and additionally stirred at 180° C. for 5.5 hours. After completion of the reaction, the mixture was allowed to cool to room temperature, and n-hexane was added thereto. The insoluble matter was collected by filtration, washed with n-hexane, and then dried to give 2-[4-(trifluoromethyl)phenyl]-1H-imidazole-4-carboxylic acid ethyl ester (1.84 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09150555B2 |
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| Source dataset | uspto-grants-2015_10 |
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| ORD ID | ord-86a63614f3b6452bacd5710dde979cd6 |
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| Source note | uspto-grants-2015_10 |
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