Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-2(3H)-one | HCID 43811065 | — |
| Reactant | HCID 57445459 | HCID 57445459 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59363802 | HCID 59363802 | — |
Reaction Steps
A round bottom flask was charged with 2,4-dichloro-6-(2-(isopentyloxy)phenyl)pyrimidine (100 mg, 0.32 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-2(3H)-one (91 mg, 0.35 mmol), Pd(dppf)Cl2 (3 mol %), 1 M NaHCO3 (0.3 mL), and THF (5 mL). The reaction mixture was heated to 70° C. for 2 hours. The reaction mixture was allowed to cool down to the room temperature, and 4 mL of conc. HCl was slowly added. The resulting slurry was heated to 100° C. for an additional 5 hours. The mixture was cooled down to room temperature, filtered, and concentrated under reduced pressure. The product was purified by preparative HPLC to result in 5-(6-{2-[(3-methylbutyl)oxy]phenyl}-2-oxo-1,2-dihydropyrimidin-4-yl)-1,3-dihydro-2H-benzimidazol-2-one. 1H NMR (400 MHz, d6-DMSO): δ 10.95 (s, 2H), 7.81-7.75 (m, 3H), 7.53 (t, 1H), 7.20 (d, 1H), 7.14-7.05 (m, 2H), 4.08 (t, 2H), 1.80-1.60 (m, 3H), 0.85 (s, 6H). MS (EI) for C22H22N4O3: 391 (MH+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08324231B2 |
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| Source dataset | uspto-grants-2012_12 |
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| ORD ID | ord-548fde196f854f968551b978c55a47cf |
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| Source note | uspto-grants-2012_12 |
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