HuagongsheHuagongshe Chemistry Print Report · For research reference only
p-Toluenesulfonic acid → Chloralose
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | Chloral | HCID 6407 | — |
| Reactant | (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal | HCID 107526 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | Chloralose | HCID 7057995 | — |
Reaction Steps
A mixture of 4.5 g of glucose, 19 g of chloral, 20 ml of chloroform and 0.05 g of 4-methyl-benzene-sulphonic acid is kept at reflux temperature for 7 hours and the formed water is separated by means of a Dean-Stark apparatus. The solvent is distilled off and the residue is kept at 60° C. for 20 minutes. The sedimented material is filtrated and the pH value of the mother lye adjusted to 6.5 with sodium hydroxide. The separated precipitate is filtered.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05116402 |
| Source dataset | uspto-grants-1992_05 |
| ORD ID | ord-b80a5b8150c544e6ac5f992ebd0d52d2 |
| Source note | uspto-grants-1992_05 |