Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | Diisopropylamine | HCID 7912 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | o-Fluorobenzaldehyde | HCID 67970 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 73315817 | HCID 73315817 | 92.2% |
Reaction Steps
To a stirring solution of diisopropylamine (5.95 mL, 42.7 mmol) in tetrahydrofuran (100 mL) at −70° C. under nitrogen was added a solution of n-butyllithium (17.6 mL, 44 mmol, 2.5 M in hexane). After the addition was complete, the mixture was stirred at −70° C. for 10 minutes and removed cooling bath for 5 minutes. The mixture was cooled back to −70° C., acetonitrile (2 mL, 38.1 mmol) was added and the reaction mixture was then stirred at −70° C. for 30 minutes. 2-fluoro-benzaldehyde (5 mL, 47.4 mmol) was added and the resulting solution was allowed to warm to ambient temperature. After 18 hours at ambient temperature, saturated aqueous ammonium chloride (5 mL) was added to the reaction mixture and it was concentrated at reduced pressure. The resulting crude product was diluted with ethyl acetate (125 mL), washed with water (75 mL) followed by saturated aqueous sodium chloride (50 mL). The organic layer was concentrated and purified by column chromatography (80 g silica gel cartridge) eluting with ethyl acetate/hexane (10%-30%) to give the product as a colorless oil (6.5 g, 83%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08609849B1 |
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| Source dataset | uspto-grants-2013_12 |
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| ORD ID | ord-d7c39a95c0a64d518e01fa186409efc5 |
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| Source note | uspto-grants-2013_12 |
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