HuagongsheHuagongshe Chemistry Print Report · For research reference only
p-Toluenesulfonic acid → 1-(3-Chlorophenyl)-2-methyl-5-phenyl-1H-pyrrole-3-carboxylic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | 3-Chloroaniline | HCID 7932 | — |
| Reactant | Ethyl 2-acetyl-4-oxo-4-phenylbutanoate | HCID 312893 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 1-(3-Chlorophenyl)-2-methyl-5-phenyl-1H-pyrrole-3-carboxylic acid ethyl ester | HCID 9881056 | — |
Reaction Steps
m-Chloroaniline (5 mmol, 0.6 g), 3-oxo-2-(2-oxo-2-phenyl-ethyl)-butyric acid ethyl ester (5 mmol, 1.2 g), and tosic acid (0.1 g) were combined in ethanol, then heated under reflux. Upon completion of the reaction, the crude solid was recrystallized from ethanol to afford the desired product (m.p. 99.6° C.-100.5° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06372777B1 |
| Source dataset | uspto-grants-2002_04 |
| ORD ID | ord-e051967b1fdc4d7c84ccf1c1304adf53 |
| Source note | uspto-grants-2002_04 |