| 摘要 |
PURPOSE:To isomerize an aldose structure-having compound into a ketose structure-having compound in the presence of an organic germanium compound having a specific partial structure without requiring a special installation and a troublesome operation by eliminating the technical difficulties of the prior art. CONSTITUTION:The isomerization method comprises isomerizing (B) the aldose structure-having compound into (C) the ketose structure-having compound with (A) an organic germanium compound having a partial structure of formula I, preferably in the presence of the component A. The component A and the component B are preferably a compound of formula II or III [R1-R3, R4-R6 are H, lover alkyl, (substituted)phenyl. (protected)amino; X1, X2 are OH, O-lower alkyl, amino, OY1, OY2, (Y1, Y2 are metal, compound having a basic group); n is >=1] and glucose, respectively, and the isomerization is preferably the isomerization of the glucose into fructose. |
