Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 2,6-Dimethyl-4-aminopyrimidine | HCID 68039 | — |
| Reactant | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Reactant | 3,5-Dibromo-1-methylpyridin-2(1H)-one | HCID 3614350 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 86684308 | HCID 86684308 | 70.1% |
Reaction Steps
A 250-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 1,4-dioxane (150 mL), 2,6-dimethylpyrimidin-4-amine (2.5 g, 20.3 mmol), 3,5-dibromo-1-methylpyridin-2(1H)-one (5.4 g, 20.3 mmol), Pd2(dba)3 (1.86 mg, 2.03 mmol), XantPhos (2.3 g, 4.06 mmol), and cesium carbonate (13.2 g, 40.6 mmol). After three cycles of vacuum/argon flush, the mixture was heated at 90° C. for 2.5 h. After this time the reaction was filtered and the filtrate was evaporated in vacuo. The resulting residue was recrystallized from ethyl acetate to afford 173a as a yellow solid (4.4 g, 40%). MS-ESI: [M+H]+ 309.0.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08716274B2 |
|---|
| Source dataset | uspto-grants-2014_05 |
|---|
| ORD ID | ord-9fbf7a3e886c45eaabb3147e73df486a |
|---|
| Source note | uspto-grants-2014_05 |
|---|
