Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | (5-Bromo-3-pyridinyl)methanol | HCID 2784733 | — |
| Reactant | 1-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroquinolin-2(1H)-one | HCID 72208233 | — |
| Catalyst | Dichlorobis(triphenylphosphine)palladium | HCID 6102075 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 86679181 | HCID 86679181 | 74% |
Reaction Steps
A microwave vial was charged with (5-bromo-pyridin-3-yl)-methanol (376 mg, 2.0 mmol), 1-methyl-6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,4-dihydro-1H-quinolin-2-one (intermediate A-1) (574 mg, 2.0 mmol) and DMF (4 mL). After purging the reaction mixture with argon, bis(triphenylphosphine)palladium(II)chloride (140 mg, 0.2 mmol) and 2 N aq. Na2CO3 solution (2.0 mL, 4 mmol) were added and the reaction was heated in the microwave at 120° C. for 50 min. The reaction mixture was diluted with EtOAc, filtered through Dicalite and washed with EtOAc (2×20 mL). The resulting filtrate was washed with brine, dried over anhydrous Na2SO4, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 5% MeOH-DCM gradient to give the title compound (198 mg, 74%) as a white solid. MS: 269.2 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09260408B2 |
|---|
| Source dataset | uspto-grants-2016_02 |
|---|
| ORD ID | ord-87b222b5dc1649eda44b8f7d3137d694 |
|---|
| Source note | uspto-grants-2016_02 |
|---|