Process for the preparation of 1,1'-diacetals

Details Process for the preparation of 1,1'-diacetals Process for the preparation of 1,1'-diacetals

1982-06-24

1985-06-18

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

536 186, 536121, 536124, 568591, 568592, 568603, C07H 100

Patent

active

045242020

ABSTRACT:
The invention relates to a process for the synthesis of 1,1'-diacetals, which method is also suitable for the stereoselective synthesis of glycosides with the 1,1'-diacetal structure. The process involves reacting a silyl compound of formula (II) with an acetal of formula (III) in the presence of a catalyst of formula (IV) or (V) in a suitable solvent.

REFERENCES:
patent: 3632860 (1972-01-01), Marbet
patent: 4096321 (1978-06-01), Weigele et al.
patent: 4272526 (1981-06-01), Simpkins et al.
patent: 4280011 (1981-07-01), DeSimone
patent: 4374831 (1983-02-01), Joseph et al.
patent: 4374832 (1983-02-01), Joseph et al.

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