Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Aniline | HCID 6115 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 1,4-Dioxaspiro[4.5]decan-8-one | HCID 567415 | — |
| Reactant | Sodium cyanoborohydride | HCID 5003444 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 11379291 | HCID 11379291 | 93.1% |
Reaction Steps
To a solution of aniline (0.58 mL, 6.4 mmol) and acetic acid (0.73 mL, 12.8 mmol) in MeOH (6 mL) was added 1,4-dioxaspiro[4.5]decan-8-one (1.0 g, 6.4 mmol). The mixture was stirred at 50° C. for 2 h. Then, NaCNBH3 (402 mg, 6.4 mmol) was added at 0° C. The mixture was stirred at room temperature for 2 h. Then, 2 M aqueous NaOH was added to quench the reaction. The organic materials were extracted with EtOAc. The combined extracts were washed with brine, dried over Na2SO4 and filtered. After removal of the solvent at reduced pressure, the residue was purified by column chromatography (Purif, silica gel, 95:5 hexane/EtOAc to 70:30 hexane/EtOAc) to give the crude title compound (1.39 g, 93%) as a pale yellow solid:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08691828B2 |
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| Source dataset | uspto-grants-2014_04 |
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| ORD ID | ord-a9dad68f9d7e4b45bed04c6e10be85ce |
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| Source note | uspto-grants-2014_04 |
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