Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 3-(Difluoromethyl)-1-methyl-1 H-pyrazole-4-carbonyl chloride | HCID 15340110 | — |
| Reactant | HCID 54673464 | HCID 54673464 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 54672820 | HCID 54672820 | 66.1% |
Reaction Steps
To a stirred solution of N-[3-(4-chlorophenyl)-1-fluoromethyl-propyl]-O-methyl-hydroxylamine (60 mg; 0.26 mmol), prepared as described in example P8c and triethylamine (0.05 ml; 0.31 mmol) in dichloromethane (1 ml) under nitrogen was added drop wise 3-difluoromethyl-1-methyl-1H-pyrazole-4-carbonyl chloride (51 mg; 0.26 mmol). The reaction mixture was stirred at 24° C. for 16 hours under nitrogen. The mixture was washed with 1M sodium hydroxide (20 ml), 1M hydrochloric acid (20 ml) and brine (20 ml). Organics were dried over sodium sulfate and evaporated under reduced pressure. The crude was subject to flash chromatography (eluant: c-hexane/ethyl acetate 90:10 to 70:30) to afford 67 mg (66% of theory) of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [3-(4-chloro-phenyl)-1-fluoromethyl-propyl]-methoxy-amide as a clear oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08552049B2 |
|---|
| Source dataset | uspto-grants-2013_10 |
|---|
| ORD ID | ord-85a549749b7f407eb2099754bba4f4f0 |
|---|
| Source note | uspto-grants-2013_10 |
|---|