Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 1-Methyl-2-imidazolecarboxaldehyde | HCID 139575 | — |
| Reactant | Sodium ethoxide | HCID 2723922 | — |
| Reactant | HCID 178463257 | HCID 178463257 | — |
| Solvent | Ethyl Propionate | HCID 7749 | — |
| Product | HCID 67260487 | HCID 67260487 | 8% |
Reaction Steps
To a solution of 1-methyl-1H-imidazole-2-carbaldehyde (580 mg, 5.2 mmol), and (E)-4-(1-(4-fluorophenyl)ethylideneamino)isobenzofuran-1(3H)-one (1 g, 3.7 mmol) in ethyl propionate (20 ml) was added rapidly EtONa [sodium (340 mg, 14.8 mmol) in 8 mL ethanol] at 0° C., then the mixture was stirred at 30° C. for 3 hr. The resulting mixture was added ethyl acetate (150 mL) and washed with water (25 mL×3), the organic layers were combined and evaporated to dryness to give the crude product, which was purified by column chromatography (silica gel, dichloromethane:methanol=200:1 to 50:1) to afford the title compound as a red solid (120 mg, yield 8%). LC-MS (ESI) m/z: 408 (M+1)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08012976B2 |
|---|
| Source dataset | uspto-grants-2011_09 |
|---|
| ORD ID | ord-3c0b36e4c1ff479f80163bcbdaf168b7 |
|---|
| Source note | uspto-grants-2011_09 |
|---|