Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | (2,4-Dichlorophenyl)boronic acid | HCID 2734659 | — |
| Reactant | Methyl 2-chloropyridine-4-carboxylate | HCID 2736842 | — |
| Catalyst | Palladium Chloride | HCID 24290 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 66731456 | HCID 66731456 | 47% |
Reaction Steps
Potassium carbonate (1.812 g, 13.11 mmol), methyl 2-chloroisonicotinate (3 g, 17.48 mmol), 2,4-dichlorophenylboronic acid (5.00 g, 26.23 mmol), PdCl2 (dppf) (0.380 g, 0.52 mmol), and MeOH (30.6 mL) were split in two 20 mL microwave vials and heated to 100° C. for 35 min in a single node microwave reactor. The reaction mixture was diluted with water and DCM, extracted with DCM and evaporated. Purified by automated flash chromatography using 5% EtOAc in heptane ->30% EtOAc over 15 CV at 280 nm. Methyl 2-(2,4-dichlorophenyl)isonicotinate (2.3 g, 47%) was isolated as a white solid. 1H NMR (400 MHz, cdcl3) δ 3.98 (s, 3H), 7.37 (dd, 1H), 7.53 (d, 1H), 7.57 (d, 1H), 7.86 (dd, 1H), 8.20 (s, 1H), 8.87 (d, 1H). MS m/z 282 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08415378B2 |
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| Source dataset | uspto-grants-2013_04 |
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| ORD ID | ord-c4b5473c9b7f4adcaf3c0a51c2f2e4f0 |
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| Source note | uspto-grants-2013_04 |
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