Process for production of sugar ketals

Details Process for production of sugar ketals Process for production of sugar ketals

1984-09-25

1987-04-21

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 41, 536120, 536124, C07H 100

Patent

active

046598090

ABSTRACT:
A process is disclosed for production of a sugar ketal, which comprises reacting a sugar with a ketone in the presence of antimony pentachloride or antimony pentafluoride. The process offers characteristic features that the reaction can be allowed to proceed fully in a small amount of the catalyst, the objective sugar ketal being obtained in improved yields.

REFERENCES:
patent: 3139443 (1964-06-01), Sosnovsky
patent: 3598804 (1971-08-01), Hindley et al.
patent: 3607862 (1971-09-01), Jaffe et al.
patent: 3622506 (1971-11-01), Hindley et al.
patent: 4460767 (1984-07-01), Matsumura et al.
patent: 4464530 (1984-08-01), Matsumura et al.
Journal of American Chemical Society, vol. XLIV, Jul.-Dec. 1922, "A Study of Catalysis in the Preparation of Acetal", by Homer Adkins and Brynjulv H. Nissen.
Organic Synthesis, vol. 1, "Open-Chain Saturated Compounds" by Migrdichian.
Houben-Weyl, vol. 3, p. 215, 1965.

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