Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | 2,2,6,6-Tetramethylpiperidine | HCID 13035 | — |
| Reactant | 4-Chloro-3-fluorotoluene | HCID 2736590 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86721102 | HCID 86721102 | 7.2% |
Reaction Steps
(Reference: E. J. Org. Chem. 2005, 2116-2123) To a solution of 2,2,6,6-tetramethylpiperidine (0.642 mL, 3.80 mmol) in THF (15 mL) at −78° C. was added n-BuLi (2.162 mL, 3.46 mmol) dropwise. The resulting solution was stirred at −78° C. for 1 h and added 1-chloro-2-fluoro-4-methylbenzene (0.5 g, 3.46 mmol) dropwise. The solution was stirred for additional 0.5 h and then added DMF (0.536 mL, 6.92 mmol). The reaction was stirred at −78° C. for 1.5 h and at ambient temperature for 12 h. The mixture was diluted with water and extracted with EtOAc (3×). The combined organic layer was washed with brine and concentrated. The residue was purified by silica gel chromatography to yield the desired product (43 mg, 7%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08901115B2 |
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| Source dataset | uspto-grants-2014_12 |
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| ORD ID | ord-7f417581a21441fbbceece8754427162 |
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| Source note | uspto-grants-2014_12 |
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