Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzyl Alcohol | HCID 244 | — |
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Sodium Bromide | HCID 253881 | — |
| Reactant | (R)-(+)-4-(Chloromethyl)-2,2-dimethyl-1,3-dioxolane | HCID 2734443 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 10878747 | HCID 10878747 | 55.5% |
Reaction Steps
Benzyl alcohol (32.90 g, 0.155 mol) was dropped under ice cooling in a suspension of 60% sodium hydride (5.88 g, 0.155 mol) and DMF (150 ml). After emission of hydrogen gas, sodium bromide (9.67 g, 0.094 mol) was added thereto. A DMF solution (15 ml) of (R)-4-chloromethyl-2,2-dimethyl-1,3-dioxolane (11.747 g, 0.078 mol) prepared by the same manner as Example 3 was dropped in it. The temperature was raised to 120° C. and the mixture was stirred for 15 hours. After completion of the reaction the reaction mixture was cooled on ice bath and neutralized with 6% hydrochloric acid. The solution was extracted with ethyl acetate. The organic layer was washed with water and with saturated brine, dried over anhydrous sodium sulfate and condensed in vacuo. The crude product was distilled to give 9.627 g of (S)-4-benzyloxymethyl-2,2-dimethyl-1,3-dioxolane (yield 54%, b.p. 112° C. at 0.3 mmHg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06143908 |
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| Source dataset | uspto-grants-2000_11 |
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| ORD ID | ord-3993a296d5f141c1baba9daa08f323f7 |
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| Source note | uspto-grants-2000_11 |
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