Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 3-Oxo-azetidine-1-carboxylic acid tert-butyl ester | HCID 1519404 | — |
| Reactant | HCID 59633897 | HCID 59633897 | — |
| Reactant | HCID 178418244 | HCID 178418244 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59633945 | HCID 59633945 | 57% |
Reaction Steps
To a solution of 4-bromo-1-(4-ethylbenzyloxy)-2-methoxybenzene (1.2 g) prepared in (1) in THF (6.0 mL) was added dropwise 1.6 N n-butyllithium/hexane (2.8 mL) at −78° C. under argon atmosphere. The mixture was stirred at −78° C. for 30 min. A solution of 1-Boc-azetidin-3-one (0.64 g) in THF (6.0 mL) was added dropwise over 10 min to the mixture at −78° C. The reaction mixture was allowed to warm to RT and then stirred for 14 hr. Water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was dried over MgSO4. The solvent was removed under reduced pressure. The residue was purified by silica gel chromatography (Developing solvent: hexane/ethyl acetate=3/1 to 1/1) to give the title compound (0.88 g, 57%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08765739B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-13ad4f11d18d4a96a1b12c8273acc938 |
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| Source note | uspto-grants-2014_07 |
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