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ChemicalBook CAS DataBase List α-Chloralose
15879-93-3

α-Chloralose synthesis

3synthesis methods
-

Yield:-

Reaction Conditions:

in chloroform;

Steps:

29 Preparation of α-chloralose

EXAMPLE 29 Preparation of α-chloralose 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. Melting point: 182°-183° C.

References:

US5116402,1992,A

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