Use of metal ions in preparation of anhydropolyols

Details Use of metal ions in preparation of anhydropolyols Use of metal ions in preparation of anhydropolyols

1980-01-21

1982-02-02

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603478, 260333, C07D30906, C07D30712, C07D30504

Patent

active

043138845

ABSTRACT:
Anhydrohexitols may be prepared from hexitols by heating the hexitols in the presence of metal ions whose charge to ionic radius ratio is from about 2.0 to about 3.2 at a temperature from about 100 to about 300.degree. C. A hexose, such as glucose, may be converted directly to anhydrohexitols, such as sorbitans, by hydrogenating the hexose in the presence of a suitable hydrogenation catalyst to which has been added an appropriate metal salt, such as nickel chloride.

REFERENCES:
patent: 1757468 (1930-05-01), Muller et al.
patent: 2572566 (1951-10-01), Himel et al.

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