Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Dimethylamine, hydrochloride | HCID 10473 | — |
| Reactant | 2-(Bromomethyl)-3-nitrobenzonitrile | HCID 66632847 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 66632531 | HCID 66632531 | 80.1% |
Reaction Steps
To a stirred mixture of 2-(bromomethyl)-3-nitrobenzonitrile (1.10 g, 4.56 mmol) (prepared according to the method described in Tetrahedron 40: 1863-1868 (1984)) and dimethylamine hydrochloride (0.74 g, 9.13 mmol) in CH2Cl2 (15 mL) was added triethylamine (1.85 g, 18.25 mmol) dropwise at 0° C. The resulting mixture was stirred at room temperature for 2 h and evaporated to dryness under reduced pressure. The residue was diluted with water (10 mL) and extracted with EtOAc (3×50 mL). The EtOAc solution was dried over anhydrous Na2SO4, filtered, and evaporated to dryness under reduced pressure. The residue was purified by MPLC on silica gel using a mixture of EtOAc and hexane as eluent to give 2-((dimethylamino)methyl)-3-nitrobenzonitrile (0.75 g, 80%) as a yellow oil. 1H NMR (400 MHz, CDCl3): δ 7.93 (br d, 1H, J=8.0 Hz), 7.85 (dd, 1H, J=8.0, 1.4 Hz), 7.55 (t, 1H, J=8.0 Hz), 3.94 (s, 2H), 2.24 (s, 6H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08080568B1 |
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| Source dataset | uspto-grants-2011_12 |
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| ORD ID | ord-98f12929133344c0a1f0747fc8102a93 |
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| Source note | uspto-grants-2011_12 |
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