HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 23347803, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | P-Anisidine | HCID 7732 | — |
| Reactant | Ethyl 1-methyl-alpha-oxo-1H-pyrrole-2-acetate | HCID 89094 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 23347803 | HCID 23347803 | 58% |
Reaction Steps
To a solution of 4.0 g ethyl 1-methylpyrrole-2-glyoxylate and 2.96 g p-anisidine in 20 ml toluene is added 24 mg p-toluenesulfonic acid. Heating at reflux for 4 days with water being removed with a Dean-Stark trap is followed by washing successively with aqueous hydrochloric acid, aqueous sodium bicarbonate and brine. After drying, evaporation of the solvent affords a dark solid. Recrystallization from isopropanol gives a 58% yield of ethyl α-(4-methoxyphenylimino)-1-methylpyrrole-2-acetate, m.p. 83°-85° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04216150 |
| Source dataset | uspto-grants-1980_08 |
| ORD ID | ord-65b02630b98344b3b014bd51f488f160 |
| Source note | uspto-grants-1980_08 |