Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | (4-Bromophenyl)boronic acid | HCID 79599 | — |
| Reactant | Methyl 2-amino-4-chloro-5-iodobenzoate | HCID 10852539 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | Diisopropyl Ether | HCID 7914 | — |
| Product | HCID 68291061 | HCID 68291061 | 55.8% |
Reaction Steps
A suspension of methyl 2-amino-4-chloro-5-iodobenzoate (Intermediate 2) (8.2 g, 26.3 mmol), (4-bromophenyl)boronic acid (5.29 g, 26.3 mmol), tetrakis(triphenylphosphine) palladium (0.304 g, 0.263 mmol) and sodium carbonate (79 mL, 1M in water, 79 mmol) in 1,4-dioxane (300 mL) was stirred 3 days at 80° C. After cooling, the mixture was filtered through celite, the filtrate was then diluted with water and extracted twice with dichloromethane. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was triturated in diisopropylether, filtered and washed with acetonitrile then diisopropylether to give the title compound methyl 4-amino-4′-bromo-6-chloro-3-biphenylcarboxylate (2.5 g, 7.34 mmol, 27.9% yield) as an off-white powder. LCMS: (M+H)+=340-342; Rt=4.09 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09061998B2 |
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| Source dataset | uspto-grants-2015_06 |
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| ORD ID | ord-9930b2bcb7194a1aa8a1ccf823270766 |
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| Source note | uspto-grants-2015_06 |
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