NI IMPREGNATED INTO HYPERCROSSLINKED POLYSTYRENE IN N- METHYL-D-GLUCOSAMINE SYNTHESIS.

Amines are the key intermediates for agricultural, pharmaceutical, textile, polymer industry etc. The common method for the amines production from the fossil resources, in spite of the high yield of the target products, is characterized by the high amount of side toxic products. Nowadays the production of bio-based amines, in particularly the derivatives of sugars, is of the growing interest. This route of amine production results in the minor waste formation and can be considered as a sustainable. Among various reactions the reductive amination which involves the transformation of C=O bonds into C-N bonds in the presence of a reductant is of the great interest. In the current work, the N-methyl-D-glucosamine was synthesized from D-glucose and methylamine in methanol medium. Ni catalyst based on hypercrosslinked polystyrene was used as a catalyst in N-methyl-D-glucosimine hydrogenation to N-methyl-D-glucosamine. The catalysts initial activity was found to be 1.3 kg(Glu)/(kg(Cat)*h) at 99.3-99.6% D- glucose conversion. The process selectivity to N-methyl-d-glucosamine was 97.6- 97.8%. [ABSTRACT FROM AUTHOR]