Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | Benzoic acid, 4-[[(4-chlorophenyl)methyl]amino]-, ethyl ester | HCID 773384 | — |
| Solvent | Formic Acid | HCID 284 | — |
| Product | HCID 23458906 | HCID 23458906 | 67% |
Reaction Steps
Ethyl 4-(4-chlorobenzylamino)-benzoate (7.2 g; 0.025 mole) was dissolved in formic acid (80%; 70 ml) and the solution was heated to 55° C. with stirring. Acetic anhydride (25 ml) was added dropwise at this temperature, allowed to cool to room temperature and stirred for 1 hour. The reaction mixture was added to iced water (100 ml) and the aqueous mixture was neutralised with solid sodium bicarbonate. The product was extracted into dichloromethane (2×100 ml), washed with water (1×100 ml), dried (anhydrous MgSO4) and evaporated. Pure N-(4-ethoxycarbonylphenyl)-N-(4-chlorobenzyl)-formamide (5.32 g; 67%) was obtained by chromatography on silica-gel in dichloromethane followed by crystallisation from ethanol. M.p. 72°-3° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04271188 |
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| Source dataset | uspto-grants-1981_06 |
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| ORD ID | ord-0d60593796ec45afa408be4877cb39db |
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| Source note | uspto-grants-1981_06 |
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