Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Cyclohexylamine | HCID 7965 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Propanoic acid, 2-bromo-2-methyl-, ethyl ester | HCID 11745 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 60998073 | HCID 60998073 | 20.2% |
Reaction Steps
A stirred suspension of ethyl 2-bromo-2-methylpropanoate (0.975 g, 5 mmol), cyclohexanamine (0.496 g, 5.00 mmol), potassium carbonate (1.382 g, 10.00 mmol) and sodium iodide (0.600 g, 4.00 mmol) in acetonitrile (10 ml) was heated at 90° C. overnight under nitrogen. The reaction mixture was cooled, filtered and evaporated to dryness and then purified by silica gel FCC (5% EtOAc in DCM) to afford ethyl 2-(cyclohexylamino)-2-methylpropanoate as a clear oil (215 mg, ˜20%). 1H NMR (500 MHz, CHLOROFORM-d) δ ppm 4.16 (q, J=7.2 Hz, 2H), 2.38-2.29 (m, 1H), 1.86-1.78 (m, 2H), 1.74-1.67 (m, J=13.5, 3.4, 3.4 Hz, 2H), 1.66-1.55 (m, 2H), 1.31 (s, 6H), 1.30-1.27 (m, 3H), 1.27-1.19 (m, 2H), 1.15-1.04 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09326973B2 |
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| Source dataset | uspto-grants-2016_05 |
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| ORD ID | ord-7c5bc97cd91744409e180429c05059c4 |
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| Source note | uspto-grants-2016_05 |
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