Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylsilane | HCID 12052 | — |
| Reactant | Methyl 4-benzoyl-1H-pyrrole-2-carboxylate | HCID 2764013 | — |
| Solvent | Trifluoroacetic acid | HCID 6422 | — |
| Product | HCID 57435077 | HCID 57435077 | 57.5% |
Reaction Steps
Triethylsilane (0.215 mL, 1.35 mmol) was added to a stirring, room temperature solution of methyl-4-benzoyl-1H-pyrrole-2-carboxylate (0.1118 g, 0.488 mmol) in trifluoroacetic acid (TFA) (1.04 mL, 0.47 M) under N2. After stirring overnight, the reaction was complete by HPLC. The TFA was removed under vacuum, and the crude product was taken up in EtOAc, washed with brine, dried with Na2SO4, filtered, concentrated, and purified by silica gel chromatography (Combiflash column, 95:5 Hexanes:EtOAc) to obtain pure 25 (0.0604 g, 57.5%): 1H (CDCl3, 400 MHz): δ 9.44 (1H, broad s), 7.34-7.21 (5H, m), 6.78 (1H, s), 6.75 (1H, s), 3.853 (2H, s), 3.846 (3H, s) ppm. 13C (CDCl3, 100 MHz): δ 162.09, 141.68, 128.85, 128.70, 126.25, 125.55, 122.67, 121.86, 115.74, 51.70, 33.41 ppm. HPLC: 9.693 min. (Starting material: 8.611 min.)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07615572B2 |
|---|
| Source dataset | uspto-grants-2009_11 |
|---|
| ORD ID | ord-20777fc724f9439f8f69638eb629b5bf |
|---|
| Source note | uspto-grants-2009_11 |
|---|