Erythritol hydrogenolysis

Table 4 lists the erythritol hydrogenolysis on various catalysts including Ir-Re0 c/Si02 catalyst. It is found that Ir-Re0 c/Si02 catalyzed the erythritol... 

Table 4 Results of erythritol hydrogenolysis over various catalysts [58]... 

Fig. 20 Reaction time dependence in the erythritol hydrogenolysis over Ir-Re0jj/Si02[58], Reaction conditions erythritol 1 g, water 4 g, = 0.3 g, H2SO4 (H /Ir = 1),...

Hydrogenolysis. C-C and C-O bond breaking by hydrogenolysis of different polyols (glycerol, xylitol, erythritol and sorbitol) has been investigated by Montassier et Predominantly ruthenium and copper-based... 

Fig. 11. The hydrogenolysis of xylitol. Time dependence of the yields of the reaction (215°) with nickel on kieselguhr 1, initial xylitol 2, erythritol 3, glycerol 4, ethylene glycol 5, 1,2-propylene glycol.

One of the side reactions is the dehydration to 1,4-anhydroerythritol, and this reaction can proceed easily under acidic conditions [63]. It has been reported that Re-Pd/C + Nafion/Si02 gave 50% yield of tetrahydrofuran from erythritol via 1,4-anhydroerythritol in dioxane [64]. Another side reaction is the isomerization to threitol. The reports on the hydrogenolysis of erythritol are so limited that the selective hydrogenolysis to valuable BuDs is challenging. 

Amada Y, Watanabe H, Hirai Y, Kajikawa Y, Nakagawa Y, Tomishige K (2012) Production of biobutanediols by the hydrogenolysis of erythritol. ChemSusOiem 5 1991-1999... 

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