Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 3-(Trifluoromethyl)phenylboronic acid | HCID 2734388 | — |
| Reactant | 2-Bromo-isonicotinic acid methyl ester | HCID 3847768 | — |
| Catalyst | Palladium Chloride | HCID 24290 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 66732259 | HCID 66732259 | 73.5% |
Reaction Steps
Methyl 2-bromoisonicotinate (2.71 g, 12.57 mmol), 3-(trifluoromethyl)phenylboronic acid (3.58 g, 18.85 mmol), potassium carbonate (2.61 g, 18.85 mmol) and PdCl2 (dppf) (0.162 g, 0.25 mmol) were mixed in methanol (30 mL) in two 20 mL microwave vials. The vials were capped and heated at 100° C. for 10 min in a single node microwave reactor. DCM and water were added and the phases separated. The water phase (pH 9) was extracted with DCM and the combined organic phase washed with brine, passed through a phase separator and evaporated to yield a brown solid. The residue was dissolved in DCM and added onto an SCX-2 cation exchange column. The column was washed with DCM, MeOH and then eluted with NH3/MeOH (1 CV each). The NH3/MeOH layer was evaporated yielding methyl 2-(3-(trifluoromethyl)phenyl)isonicotinate (2.6 g, 73%). 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-58fd81e4532d4773bf9ea200037134b0 |
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| Source note | uspto-grants-2013_04 |
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