Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-Bromo-2-fluoroaniline | HCID 123050 | — |
| Reactant | 3-Ethoxybenzeneboronic acid | HCID 2773920 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | 1035689-60-1 | HCID 66997355 | 95.9% |
Reaction Steps
To a solution of 4-bromo-2-fluoroaniline (3.2 g, 17.05 mmol), 2M K2CO3 (24 ml, 48.00 mmol), Pd(PPh3)4 (1.2 g, 1.02 mmol) in toluene (120 ml) under nitrogen atmosphere was added dropwise a solution of the 3-ethoxyphenylboronic acid (4.25 g, 25.61 mmol) in 31 ml of MeOH. The mixture was heated to 80° C. overnight and then cooled to room temperature. Ethyl acetate was added and washed twice with a K2CO3 aqueous solution. The organic layer was washed with brine, dried over magnesium sulphate, filtered and the solvent evaporated under vacuum. The residue obtained was purified by flash chromatography eluting with Hexane/AcOEt (from 10/1 to 8/1). The solid obtained was recrystallized in hexane to yield 3.78 g of the desired compound as a white solid. Yield=72%
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08691852B2 |
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| Source dataset | uspto-grants-2014_04 |
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| ORD ID | ord-f612ee3d6709460198e3c6b5a40626f7 |
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| Source note | uspto-grants-2014_04 |
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