Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrazine | HCID 9321 | — |
| Reactant | HCID 18919259 | HCID 18919259 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 69960387 | HCID 69960387 | 81% |
Reaction Steps
In ethanol (70 ml) was dissolved 1-[4-(4-chlorobenzoyl)benzyl]-2,3-diethoxycarbonylpyrrole (3.31 g) followed by addition of anhydrous hydrazine (10.54 g) and the mixture was refluxed for 3 hours. The solvent was then distilled off under reduced pressure and the resulting crystals were suspended in water (150 ml) and, after addition of concentrated hydrochloric acid (30 ml), stirred at 85° C. for 30 minutes. The crystals were rinsed with water, methanol and ether serially and dried under reduced pressure to provide 1.46 g (yield 81%) of the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05753664 |
|---|
| Source dataset | uspto-grants-1998_05 |
|---|
| ORD ID | ord-5cd7c4a76aa44d6d85bdf8e904763e2b |
|---|
| Source note | uspto-grants-1998_05 |
|---|