Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cyclohexanone | HCID 7967 | — |
| Reactant | Hydrogen iodide | HCID 24841 | — |
| Reactant | (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal | HCID 107526 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 2724782 | HCID 2724782 | 77.8% |
Reaction Steps
To a mixture of 150 ml of cyclohexanone and 120 ml of dichloromethane were added 10.0 g of D-glucose and 175 mg of hydriodic acid (57%) and the mixture was refluxed with stirring in a water bath at 65° C. for 8 hours. During this reaction, the refluxing solvent was dried with 20 g of Molecular Sieves 3A interposed between the reaction vessel and the cooling jacket. The reaction mixture was diluted with chloroform, washed with aqueous sodium bicarbonate and water and dried over anhydrous magnesium sulfate. The solvent and cyclohexanone were distilled off under reduced pressure and the residue was recrystallized from ligroin to give 11.2 g (77.8%) of 1,2:5,6-di-O-cyclohexylidene-α-D-glucofuranose, melting at 133°-136° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04464530 |
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| Source dataset | uspto-grants-1984_08 |
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| ORD ID | ord-a47b9b4a3e014600a779a7c843f441d0 |
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| Source note | uspto-grants-1984_08 |
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