Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 4-Methoxyphenol | HCID 9015 | — |
| Reactant | Diethyl phenylphosphonite | HCID 74225 | — |
| Product | HCID 18983531 | HCID 18983531 | — |
Reaction Steps
99 g (0.5 mol) of diethyl phenylphosphonite and 62 g (0.5 mol) of 4-methoxyphenol were mixed and heated with stirring at 415 mbar. Ethanol distilled off at 115° C. via a small column. The temperature was then increased stepwise to 160° C., and the vacuum was simultaneously increased to 70 mbar. In total, 21.5 g (0.467 mol) of ethanol distilled off. The batch was then cooled and distilled. After a first fraction of 29 g, which essentially contained the unreacted starting materials, 103 g were obtained having a boiling point from 135° to 138° C. at 0.1 to 0.2 mbar. The yield was thus 75% of theory.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05498741 |
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| Source dataset | uspto-grants-1996_03 |
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| ORD ID | ord-897c88b5931d4faa9d17af11e45b3cbc |
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| Source note | uspto-grants-1996_03 |
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