Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Tin tetrachloride | HCID 24287 | — |
| Reactant | 1,2,3,4-Tetra-O-acetyl-beta-D-xylopyranose | HCID 2817255 | — |
| Reactant | HCID 86239097 | HCID 86239097 | — |
| Reactant | Sodium bicarbonate water | HCID 86585896 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 68700275 | HCID 68700275 | 15.9% |
Reaction Steps
Under an argon atmosphere, 318 mg of β-xylose tetraacetate was dissolved in 6 ml of dry methylene chloride, and the solution was cooled to 0° C. A solution of 0.12 ml of tin tetrachloride dissolved in 1 ml of methylene chloride was added dropwise thereto, the mixture was agitated at room temperature for 20 minutes, and then cooled to −10° C. A solution of 326.6 mg of 5,9,13,17-tetramethyloctadecanol in 1 ml of methylene chloride was added dropwise thereto, and the mixture was agitated for 4 hours. A sodium bicarbonate water was added to the reaction solution and extraction was carried out 3 times with methylene chloride. The extract was washed with water and dried over anhydrous sodium sulfate. After the filtration, the resultant was concentrated, and the concentrate was purified by column chromatography to obtain 93 mg of 1-O-(5,9,13,17-tetramethyloctadecyl)-β-D-xylopyranoside triacetate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07846903B2 |
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| Source dataset | uspto-grants-2010_12 |
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| ORD ID | ord-38c03aef715b4e618561931db66fc730 |
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| Source note | uspto-grants-2010_12 |
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