Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzyl Bromide | HCID 7498 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 22380755 | HCID 22380755 | — |
| Catalyst | Tetrabutylammonium hydrogen sulfate | HCID 94433 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 22380664 | HCID 22380664 | 84% |
Reaction Steps
1′-(tert-Butoxycarbonyl)-2,3-dihydro-5-methylspiro[isoquinoline-4(1H),4′-piperidin]-1-one (80.7 mg) was dissolved in toluene (1.6 ml), added with sodium hydroxide (powder, 34.2 mg), potassium carbonate (67.4 mg), tetrabutylammonium hydrogensulfate (8.3 mg) and benzyl bromide (44 μl) and stirred at 70° C. for 3 hours. The reaction mixture was added with water (2 ml) and extracted twice with dichloromethane (2 ml). The organic layer was dried over anhydrous magnesium sulfate, and then the solvent was evaporated under reduced pressure. The residue was purified by preparative thin layer silica gel column chromatography (developing solvent: hexane:ethyl acetate=1:5) to obtain 86 mg of the title compound. Yield: 84%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06916822B2 |
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| Source dataset | uspto-grants-2005_07 |
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| ORD ID | ord-64c644c1418241a0b64a72a53cdd8961 |
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| Source note | uspto-grants-2005_07 |
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