Verfahren zur Herstellung von D-Maltose-Monoestern mit einem hohen Gehalt von 6-0'-Ester und ihre Verwendung in Kosmetika, Zahnpflegemitteln, Pharmazeutik und Lebensmitteln

摘要

Process for the preparation of monoesters predominantly in position 6' of D-maltose. This process consists, in a first stage, in forming, in an organic solvent, a mixed anhydride of formula (I): in which: R represents a linear or branched alkyl radical or an alkenyl radical, having 7 to 21 carbon atoms, or R represents a defined mixture of such alkyl or alkenyl radicals, and R' represents a linear or branched alkyl radical having 2 to 10 carbon atoms, by reaction, in the presence of a base, of an acid R-COOH, R having the same meaning as above, and of an alkyl chloroformate ClCOOR', R' having the same meaning as above, and in a second stage, in reacting the said mixed anhydride of formula (I), in solution in the said organic solvent, with D-maltose. Use of the monoesters predominantly in position 6' of D-maltose in the cosmetic, dentibuccal, pharmaceutical or food areas.