Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Hydrazine, (4-chlorophenyl)-, hydrochloride (1:1) | HCID 71600 | — |
| Reactant | 3-[3-(dimethylamino)prop-2-enoyl]-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one | HCID 66710802 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 59436270 | HCID 59436270 | 30.2% |
Reaction Steps
To a solution of 3-[3-(dimethylamino)prop-2-enoyl]-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one (337 mg, 1.0 mmol) in ethanol (100 mL) were added 4-chlorophenylhydrazine hydrochloride (269 mg, 1.5 mmol) and Et3N (0.28 mL, 2.0 mmol). The mixture was stirred at 100° C. for 3 h and the solvent was removed under reduced pressure. Preparative HPLC chromatography provided 3-[1-(4-chlorophenyl)-1H-pyrazol-5-yl]-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one as a pale brown solid (126 mg, 30%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08916566B2 |
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| Source dataset | uspto-grants-2014_12 |
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| ORD ID | ord-999c90c8e5614021a0f90293be083646 |
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| Source note | uspto-grants-2014_12 |
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