Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | 3-(3-Fluoro-4-methoxy-phenyl)-2-methyl-propionic acid ethyl ester | HCID 90118226 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 90118566 | HCID 90118566 | 99.5% |
Reaction Steps
After 3-(3-fluoro-4-methoxy-phenyl)-2-methyl-propionic acid ethyl ester (0.728 g, 3.03 mmol) obtained in Step B was dissolved in anhydrous DCM (10 mL), 1M BBr3 solution (4.5 mL, 4.5 mmol) was added thereto at −78° C., and the mixture was stirred at room temperature for 3 hours. After the termination of the reaction, the reactant was added with MeOH, concentrated under reduced pressure, and purified by column chromatography (eluent, EtOAc/Hex=1/2) to obtain the title compound (0.64 g, 99%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09447044B2 |
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| Source dataset | uspto-grants-2016_09 |
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| ORD ID | ord-127267ae42e844e69480a191b5f2b6b2 |
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| Source note | uspto-grants-2016_09 |
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