HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → Ethyl 3-carboxy-1,4-dimethyl-5-(p-toluoyl)-pyrrole-2-acetate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 3-Carboxy-1,4-dimethyl-5-(p-toluoyl)-pyrrole-2-acetic acid | HCID 18424352 | — |
| Product | Ethyl 3-carboxy-1,4-dimethyl-5-(p-toluoyl)-pyrrole-2-acetate | HCID 18424327 | — |
Reaction Steps
A solution of 37 g. (0.118 mole) of 3-carboxy-1,4-dimethyl-5-(p-toluoyl)-pyrrole-2-acetic acid in 370 ml. of ethanol containing 1.8 g. of dry hydrogen chloride is heated under reflux for 45 min. The solution is cooled and the solid which precipitated, ethyl 3-carboxy-1,4-dimethyl-5-(o-toluoyl)-pyrrole-2-acetate, is collected, m.p. 200°-202°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03952012 |
| Source dataset | uspto-grants-1976_04 |
| ORD ID | ord-59addbbe0e9e4cabb1761379a67184ba |
| Source note | uspto-grants-1976_04 |