HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonium → 4-chloro-1H-pyrrole-2-carboxamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonium | HCID 223 | — |
| Reactant | 2,2,2-trichloro-1-(4-chloro-1H-pyrrol-2-yl)ethan-1-one | HCID 7130688 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 4-chloro-1H-pyrrole-2-carboxamide | HCID 55207577 | 92% |
Reaction Steps
A solution of 2,2,2-trichloro-1-(4-chloro-1H-Pyrrol-2-yl)ethanone (14.0 g, 56.7 mmol) in THF (100 mL) was bubbled with ammonium gas for 2 h at room temperature. TLC analysis indicated that there was complete conversion of starting material. The reaction mixture was concentrated in vacuo to yield 7.5 g of the above compound (51.88 mmol, yield 92%). 1H-NMR (Acetone-d6) δ 10.92 (br s, 1H), 7.21 (br s, 1H), 7.02 (s, 1H), 6.84 (s, 1H), 6.57 (br s, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08133995B2 |
| Source dataset | uspto-grants-2012_03 |
| ORD ID | ord-ea773c68d66d43b68f03ceb3da912e31 |
| Source note | uspto-grants-2012_03 |