Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | (2H-1,3-benzodioxol-5-yl)boronic acid | HCID 2734371 | — |
| Reactant | tert-Butyl 5-bromonicotinate | HCID 18422124 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 67430909 | HCID 67430909 | 88.1% |
Reaction Steps
In a flask was placed tert-butyl 5-bromonicotinate (1.00 g, 3.87 mmol), 10% w/w palladium on carbon (210 mg, ˜0.2 mmol Pd), potassium carbonate (1.10 g, 7.96 mmol), 3,4-methylenedioxy-phenyl boronic acid (0.96 g, 5.79 mmol), dimethylformamide (50 mL) and water (250 L). The flask was purged with nitrogen and then heated, with stirring, to 90° C. for 15 hr. The reaction mixture was allowed to cool, diluted with water (350 mL) and extracted with CH2Cl2 (4X). The combined extracts was washed with water, dried (MgSO4) and concentrated in vacuo. The crude residue was purified by flash chromatography on silica (gradient, CH2Cl2 to 50% ether/CH2Cl2) to provide an off-white solid (1.02 g, 88%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08030336B2 |
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| Source dataset | uspto-grants-2011_10 |
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| ORD ID | ord-bb91667b12d04c4e8eb42e3621febe7c |
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| Source note | uspto-grants-2011_10 |
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