Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl Acrylate | HCID 7294 | — |
| Reactant | Sulfuric acid magnesium salt (1:1) | HCID 24083 | — |
| Reactant | HCID 9838139 | HCID 9838139 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 19784863 | HCID 19784863 | 48.9% |
Reaction Steps
A mixture of 20.0 grams (76 mmol) of 4-benzyloxyl-oxyl-2,2,6,6-tetramethylpiperidine, 10.0 grams of anhydrous magnesium sulfate, 500 mg of 5% palladium on carbon and 150 ml of tetrahydrofuran is hydrogenated on a Parr apparatus (50 psi, ambient temperature). Catalyst and drying agent are removed by filtration and the filtrate is quickly transferred to a flask under a nitrogen atmosphere. To the flask are added 0.85 gram of potassium tert-butoxide, 19.7 grams (229 mmol) of methyl acrylate, and 50 ml of tetrahydrofuran. The reaction mixture is stirred at ambient temperature for three hours and at 55° C. for one hour. The reaction mixture is partitioned between ether (300 ml) and saturated sodium bicarbonate solution (150 ml). The ether layer is washed with water (2×500 ml), washed with saturated aqueous sodium chloride (200 ml), dried over anhydrous magnesium sulfate and concentrated to an oil. The oil is purified by flash chromatography (silica gel; 9:1 hexane:ethyl acetate) to afford 13.0 grams of the title compound as a colorless liquid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05015678 |
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| Source dataset | uspto-grants-1991_05 |
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| ORD ID | ord-87803e8794af44caa0b9099434a386fd |
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| Source note | uspto-grants-1991_05 |
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