Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | Ethyl 4-hydroxyhydrocinnamate | HCID 2736435 | — |
| Reactant | (3-Ethyloxetan-3-yl)methyl 4-methylbenzenesulfonate | HCID 11425703 | — |
| Product | HCID 86600972 | HCID 86600972 | — |
Reaction Steps
17.4 g of ethyl 3-(4-hydroxyphenyl)propionate and 6.1 g of potassium hydroxide were added to 150 ml of ethanol, and stirred at 60° C. for 1 hour. This was cooled to 40° C., and 30 g of 3-[(tosyloxy)methyl]-3-ethyloxetane was dropwise added to it. Then, this was refluxed for 3 hours. Ethanol was evaporated away, and water and toluene were added to it for liquid-liquid separation. The toluene layer was washed with 3% hydrochloric acid, saturated sodium hydrogencarbonate and water, and then toluene was evaporated away. To the resulting residue, added were 20 g of sodium hydroxide, 100 ml of ethanol and 50 ml of water, and this was refluxed for 2 hours. Ethanol was evaporated away, and the resulting residue was poured into 500 ml of 5% hydrochloric acid, and a crystal was thus formed. The crystal taken out through filtration was recrystallized from a mixed solvent of ethanol and water, and 5 g of [4-(3-ethyloxetan-3-ylmethoxy)phenyl]propionic acid (OX7) was obtained. Its melting point was 85° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07407691B2 |
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| Source dataset | uspto-grants-2008_08 |
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| ORD ID | ord-947b6c23bb5f4070815ddde55ec7c33b |
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| Source note | uspto-grants-2008_08 |
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