Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzophenone | HCID 3102 | — |
| Reactant | 2,3,4,5-Tetraphenyl-2,4-cyclopentadien-1-one | HCID 68068 | — |
| Reactant | 1,4-Diphenyl-2-butyne-1,4-dione | HCID 227980 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 19087031 | HCID 19087031 | 43% |
Reaction Steps
1,2-bis(benzoyl)acetylene (C16H10O2, 234.27, 2 g, 8.54 mmol), tetraphenylcyclopenta-dienone (C29H20O, 384.47, 3.28 g, 8.54 mmol), and 40 g benzophenone were refluxed for 2 hr under an atmosphere of nitrogen. The reaction mixture was cooled to 30° C. and poured into a large volume (250 ml) of methanol. The tan precipitation was washed with methanol (2×10 ml) and refluxed in toluene (25 ml) charcoal (a spoon) to give a white crystal in 43% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07232617B2 |
|---|
| Source dataset | uspto-grants-2007_06 |
|---|
| ORD ID | ord-508e8b0fb30e4572840643110ee0c710 |
|---|
| Source note | uspto-grants-2007_06 |
|---|
