Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Nitrophenol | HCID 6947 | — |
| Reactant | Diphenylacetic Acid | HCID 8333 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 3339760 | HCID 3339760 | — |
Reaction Steps
A solution of diphenylacetic acid (30.0 g; 141 mmol) and o-nitrophenol (39.3 g; 282 mmol) in pyridine (250 mL) was cooled to 0° C. N,N1 -dicyclohexylcarbodiimide (27.6 g; 134 mmol) was added at 0° C. The solution was stirred at 0° C. for several hours, warmed to room temperature and stirred overnight. The resulting heterogeneous solution was diluted with EtOAc and filtered. The filtrate was concentrated to afford a thick oil which was dissolved in a minimal amount of warm isopropanol. Upon cooling the sub-title compound began to crystallize from solution. The crystals were collected and dried under vacuum to afford the sub-title compound (37.3 g; 82%) as an off-white powder.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06127414 |
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| Source dataset | uspto-grants-2000_10 |
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| ORD ID | ord-ffb1d2a3ff08419e8c44274c702d226b |
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| Source note | uspto-grants-2000_10 |
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