Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 4-Dodecylbenzenesulfonyl azide | HCID 10915143 | — |
| Reactant | tert-Butyl 4-(3-oxobutanoyl)piperidine-1-carboxylate | HCID 21912749 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 73853093 | HCID 73853093 | — |
Reaction Steps
A solution of 0.51 g (1.8 mmol) of 1-(tert-butoxycarbonyl)-4-(1,3-dioxo-but-1-yl)piperidine (from Step B) and 0.65 g (1.8 mmol) of para-dodecylbenzenesulfonyl azide (Syn. Comm. 1981, 11, 947–956) in CH3CN at 0° C. was treated with 0.26 mL (1.8 mmol) of triethylamine. The reaction was warmed to rt and stirred for 4.5 hours. The reaction was poured into 100 mL of Et2O and washed with 100 mL of H2O, 100 mL of 2 N HCl and 100 mL of brine. The organic layer was dried over MgSO4 and concentrated. The residue was purified with a 40M Biotage column using 9:1 v/v of hexanes/acetone to afford the title compound as a light yellow oil: RF: 0.33 (4:1 v/v hexanes/acetone); 1H-NMR (500 MHz) δ 1.46 (s, 9H), 1.57–1.76 (m, 4H), 2.42 (s, 3H), 2.82 (m, 2H), 3.24 (m, 1H), 4.14 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07125887B2 |
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| Source dataset | uspto-grants-2006_10 |
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| ORD ID | ord-986d0c6234aa46b6ad1b6a02ae87cbc8 |
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| Source note | uspto-grants-2006_10 |
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