engleski

Comparative Study of Homogeneous Hydrogenation of D-Glucose and D-Mannose Catalyzed by Water Soluble [Ru(tri(m-sulfophenyl)phosphine)] Complexes

Homogeneous hydrogenation of two epimeric aldoses, D-glucose (D-Glc) and D-mannose (D-Man) was performed in water, with molecular hydrogen and by transfer hydrogenation catalyzed by [Ru-TPPTS] complex (TPPTS=trisodium salt of tri(m-sulfophenyl)phosphine). Both method proved effective, and revealed D-Man as more reactive aldose. Hydrogen transfer has been studied with various hydrogen donors ; the most effective, hut highly pH-dependent system has been found in Et(3)N/formic acid (azeotropic mixture 2:5) as the source of hydrogen.

(sulfophenyl)phosphine derivatives ; Phosphine derivatives. Ruthenium ; Formiates ; Sodium ; Ammonium ; Hydrogenation

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