Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | Hydrofluoric Acid | HCID 14917 | — |
| Reactant | 3,5-Dichlorophenylboronic acid | HCID 2734331 | — |
| Reactant | HCID 21717163 | HCID 21717163 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 21830685 | HCID 21830685 | 78.9% |
Reaction Steps
Prepared according to the method described in Example 33a) from toluene (3 ml), aqueous sodium carbonate (2 M, 1.4 ml), (±)-3-(4-(4-bromophenoxy)-3-(tert-butyldimethylsilyloxy)butyl)pyridine (0.67 g), ethanol (0.8 ml), 3,5-dichlorobenzeneboronic acid (0.30 g) and tetrakis(triphenylphosphine)palladium(0) (73 mg) with heating at 120° C. for 6 hours. The residue obtained after work up was deprotected as in Example 34e) using hydrofluoric acid (40%, 4 ml) in acetonitrile (30 ml). The residue obtained after work up was purified by column chromatography over silica eluting with dichloromethane then ether then ethyl acetate to give an oil (0.47 g). This was recrystallised from ether to give the title compound as a white solid (0.21 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05977105 |
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| Source dataset | uspto-grants-1999_11 |
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| ORD ID | ord-b1edf844b37a4003819bdbce61b969ef |
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| Source note | uspto-grants-1999_11 |
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