Key Catalytic Features Platform Molecules Nature Relationship

2 Key Catalytic Features Platform Molecules Nature Relationship 

Besides the advantage of using cellulose as a renewable feedstock, the easy of recoverability of the catalysts from the solid residues and its reuse without any loss of activity or selectivity for several rims were other benefits generated by this composite architecture [20]. 

Another important platform molecule that can be produced from cellulose and hemicellulo.se is LA. However, to be efficacy, the catalytic conversion of llgnocellulosic feedstocks requires improving catalysts efficiencies and selectivities. 

As Table 9.1 shows, for a pressure of 10 bars both the LA conversion and SA selectivity increased with temperature (entries 3-5). On the other hand, at 150°C, the conversion of LA increased with the increase of the pressure while the selectivity to SA registered a constant value (96-98%) (entries 4, 6, and 7). The acidity of the potentially formed and [Ru(H20)j0H] corresponds to strong Bronsted acids (pK = 2.9 at 298 K), that in the presence of hot water seems to be strong enough to catalyze the oxidation reaction by a Bayer-Villiger rearrangement. However, more investigations are necessary to confirm this supposition. 

The obtained results also open the interest for the green oxidation of LA. Up to date catalytic oxidative procedures using these substrates were scarcely investigated [50-52]. For instance, the high-temperature (e.g., 365-400°C) oxidation of LA with oxygen on allows the 

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