Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Methyl Isocyanate | HCID 12228 | — |
| Reactant | HCID 10655258 | HCID 10655258 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 54568712 | HCID 54568712 | 89.2% |
Reaction Steps
To a solution of N-(5-phenylfur-2-yl)methyl hydroxylamine (0.5 g, 2.64 mmol) in tetrahydrofuran (30 mL) was added methylisocyanate (0.24 mL, 3.97 mmol) dropwise at room temperature under nitrogen while stirring. The reaction was stirred for 20 h and ethyl ether (100 mL) and water (100 mL) was added. The organic layer was separated, washed with saturated aqueous NaCl, dried over MgSO4, filtered and concentrated in vacuo, to give a solid (0.58 g). Purification by chromatography (silica gel, 2% methanol in dichloromethane) gave the desired product (0.28 g), mp 135°-139° C.; NMR (300 MHz, DMSO-d6): 2.63 (3H, d, J=5.4 Hz), 4.53 (2H, s), 6.38 (1H, d, J=3.3 Hz), 6.87 (1H, d, J =3.3 Hz), 7.03 (1H, q, J=5.4 Hz), 7.24-7.30 (1H, m), 7.38-7.45 (2H, m), 7.38-7.45 (2H, m), 7.62-7.68 (2H, m), 9.40 (1H, s); MS (CI-NH3): M+H=247; Analysis Calculated for C13H14N2O3 : C, 63.40; H, 5.73, N, 11.38; Found C, 63.29; H, 5.76; N, 11.34.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05112848 |
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| Source dataset | uspto-grants-1992_05 |
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| ORD ID | ord-f4b177ba6c4344f3a877b1d615b5c0d7 |
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| Source note | uspto-grants-1992_05 |
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