Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetone | HCID 180 | — |
| Reactant | HCID 58335267 | HCID 58335267 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | tert-Butyl methyl ether | HCID 15413 | — |
| Product | HCID 58335251 | HCID 58335251 | — |
Reaction Steps
To a solution of 5-bromo-2-(diethoxymethyl)-1,3-difluorobenzene (14.7 g, 0.05 mol) in t-butylmethylether (290 mL) was added n-BuLi (21 mL of 2.5 M in hexanes, 0.052 mol) at −78° C. under argon. The reaction was then stirred at −78° C. for 1 hour. Acetone (4.9 mL, 0.065 mol) was added dropwise to the reaction mixture. The reaction solution was then slowly warmed to 0° C. and stirred for 30 min. The reaction was quenched with saturated aqueous sodium bicarbonate. The mixture was extracted with ethyl acetate. The organic phase was dried and concentrated to afford the title compound. No further purification was performed. 1H NMR (300 MHz, CDCl3): δ 10.34 (s, 1H), 87.03 (d, 2H), 5.74 (s, 1H), 3.85-3.71 (m, 2H), 3.60 (q, 2H), 1.52 (s, 6H), 1.24 (t, 6H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08278335B2 |
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| Source dataset | uspto-grants-2012_10 |
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| ORD ID | ord-475f13210ef14b09ac775a014639a2af |
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| Source note | uspto-grants-2012_10 |
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