Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexachloroethane | HCID 6214 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | HCID 86674183 | HCID 86674183 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 71060236 | HCID 71060236 | 70% |
Reaction Steps
LiHMDS (1.06 M in THF, 1.32 mL, 1.40 mmol) was added to a solution of 2-fluoro-4-(oxazol-5-yl)benzonitrile 38 (0.22 g, 1.17 mmol) in THF (20 mL) at −78° C., and the mixture was stirred at −78° C. for 1 h. A solution of hexachloroethane (0.415 g, 1.75 mmol) in THF (5 mL) was added at −78° C., and the mixture was stirred at −78° C. for 2 h and allowed to warm to room temperature and stirred for 14 h. The reaction was quenched by adding EtOAC:H2O (50 mL:15 mL), and then extracted with Ethyl acetate. The extracts were washed with brine, dried (Na2SO4) and concentrated. The product was purified by column chromatography (Acetone/hexane as an eluent) to provide 4-(2-chlorooxazol-5-yl)-2-fluorobenzonitrile 39 (0.18 g, 70% yield) as white solid. MS (ES) m/z 223 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08551992B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-f6e8fc55ee724b0b8a1506d994ffbec2 |
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| Source note | uspto-grants-2013_10 |
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