Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | HCID 23025585 | HCID 23025585 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 23026025 | HCID 23026025 | 89% |
Reaction Steps
To a solution of 6-bromo-2-(3-methoxyphenyl)benzoxazole (Compound of Example 242) (19.45 g) in chloroform (800 ml) was added dropwise boron tribromide (100.05 g) at 0° C., and the mixture was stirred at room temperature for 4 hours and 65° C. for 9 hours. The reaction mixture was poured into water, and the mixture was stirred at room temperature for 30 minutes and extracted with chloroform-tetrahydrofuran (4:1, v/v). The organic layer was washed with water and dried over MgSO4, and the solvent was distilled off under reduced pressure. The resulting crystals were collected by filtration to obtain 3-(6-bromobenzoxazol-2-yl)phenol (16.46 g, 89%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07622479B2 |
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| Source dataset | uspto-grants-2009_11 |
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| ORD ID | ord-c1c1b8cf154e4ef1a97245f52f98de0b |
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| Source note | uspto-grants-2009_11 |
|---|