Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | M-Cresol | HCID 342 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | ethyl N-ethoxycarbonyliminocarbamate | HCID 220568 | — |
| Reactant | 2-(5-Methyl-2-phenyl-4-oxazolyl)ethanol | HCID 725585 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 18003553 | HCID 18003553 | 78.3% |
Reaction Steps
A solution of 3.50 g of m-cresol, 9.87 g of 2-(5-methyl-2-phenyl-oxazole-4yl)-ethanol and 12.73 g of triphenylphosphine in 190 ml of THF was treated at 0° C. with a solution of 8.45 g of diethyl azodicarboxylate (DEAD) in 75 ml of THF over 20 min and the brown solution was stirred at 22° C. for 24 h. The solution was evaporated and the residue partitioned between CH2Cl2 (300 ml) and 0.1 N aqueous NaOH (100 ml). The organic layer was washed twice with water (2×100 ml), dried, the organic solvent was evaporated and the residue was chromatographed on silica (n-hexane/AcOEt, 20:1) to give 7.43 g (78%) of the title compound as white crystals.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06642389B2 |
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| Source dataset | uspto-grants-2003_11 |
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| ORD ID | ord-7d8f4b7aec5e4b81b605a03401168383 |
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| Source note | uspto-grants-2003_11 |
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