HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Water → Ethyl 4-[(2-methylbenzoyl)amino]benzoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Water | HCID 962 | — |
| Edukt | Benzocaine | HCID 2337 | — |
| Edukt | Triethylamine | HCID 8471 | — |
| Edukt | 2-Methylbenzoyl chloride | HCID 70276 | — |
| Lösungsmittel | Dichloromethane | HCID 6344 | — |
| Produkt | Ethyl 4-[(2-methylbenzoyl)amino]benzoate | HCID 689910 | 77,4% |
Reaktionsschritte
A mixture of 43.42 g (0.26 mol) of ethyl 4-aminobenzoate and 40.8 g (0.26 mol) of 2-methylbenzoyl chloride in 150 ml of dichloromethane is cooled in an ice bath and 26.56 g (0.26 mol) of triethylamine is added dropwise. After the addition, the solution is stirred at room temperature overnight. The mixture is poured into water and the organic layer separated. The organic layer is washed with water, 1N HCl, 1M NaHCO3 and dried (Na2SO4). The solvent is removed and the solid slurried with ethyl acetate and filtered to give 57 g of ethyl 4-[(2-methylbenzoyl)amino]benzoate as crystals, m.p. 110°-115° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05834461 |
| Quelldatensatz | uspto-grants-1998_11 |
| ORD ID | ord-9067017abdd240ea80e17e61f7fa9482 |
| Quellennotiz | uspto-grants-1998_11 |