Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Azide | HCID 33557 | — |
| Reactant | HCID 60077753 | HCID 60077753 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 60077744 | HCID 60077744 | 36% |
Reaction Steps
Sodium azide (1.26 g, 19.4 mmol) was added to a solution of [1(S)-(4-fluorobenzoyl)-2,2-dimethylpropyl]-carbamic acid tert-butyl ester (0.20 g, 0.7 mmol) in DMF (15 mL), and the mixture heated at 120° C. for 40 hours. The solvent was removed in vacuo before addition of 10% NaHCO3 (aq.) (30 mL) to the residual solid. The aqueous phase was extracted with ethyl acetate (2×30 mL) and the organic phases washed with brine (1×30 mL), dried over MgSO4, filtered and the solvent removed in vacuo to give a yellow solid. Purification by column chromatography (SiO2, 4:1 iso-hexane:ethyl acetate) afforded the title compound as a yellow solid (67 mg, 36%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06716878B1 |
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| Source dataset | uspto-grants-2004_04 |
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| ORD ID | ord-ece5bd87f80c4882af4369f7856d4450 |
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| Source note | uspto-grants-2004_04 |
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