Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | HCID 67292111 | HCID 67292111 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 67289277 | HCID 67289277 | 70% |
Reaction Steps
To a stirred solution of 2-(3-bromo-phenyl)-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carbonitrile (4.2 g, 12.4 mmol) in N,N-dimethylformamide (15 mL) was added a 60% dispersion of sodium hydride in mineral oil (1.5 g, 37.2 mmol) portionwise at 0° C. The mixture was stirred at 0° C. for 30 min and then iodomethane (2.4 mL, 37.2 mmol) was added to above mixture dropwise at 0° C. The solution was stirred at 0° C. for 2 h and then extracted with ethyl acetate, washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The yellowish residue was purified by ISCO combi-flash chromatography (gradient elution, 10% ethyl acetate/hexane) to afford 2-(3-bromo-phenyl)-1,4,4-trimethyl-1,2,3,4-tetrahydro-quinoline-6-carbonitrile (1.1 g, 70%) as a yellow oil: MS obsd. (ESI+) [(M+H)+] 355.0 & 357.0.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08546427B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-cbfbd2e2e3d84ec48fefa56d20066d10 |
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| Source note | uspto-grants-2013_10 |
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