hydrogenolysis


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hydrogenolysis

[′hī·drə·jə′näl·ə·səs]
(chemistry)
A reaction in which hydrogen gas causes a chemical change that is similar to the role of water in hydrolysis.
References in periodicals archive ?
In all cases, glycerol is converted to propylene glycol via hydrogenolysis.
If the demand for glycerol grows, it can also be produced from carbohydrate fermentation or by hydrogenolysis of carbohydrates.
ADM is producing bio-propylene glycol from its facility in Decatur, Illinois, from the hydrogenolysis of glycerol and sugar alcohols.
Another good example of a biobased incumbent chemical is propylene glycol, which ADM is producing from glycerol hydrogenolysis.
One strategy to achieving the conversion of polyols to [alpha], [omega]-diols is the use of an (iterative) cascade of acid catalyzed dehydrations and transition metal catalyzed hydrogenations of the alkenes and carbonyls and/or hydrogenolysis of the oxygen-carbon bonds in the oxacycles resulting from the dehydration and condensation steps (Figure 1).
The second and equally formidable challenge encountered in the polyol deoxygenations is the formation of oxacycles that have to be cleaved by hydrogenolysis in order to yield the desired [alpha],[omega]-diols.
The proton and hydride are then sequentially transferred to an unsaturated bond effecting hydrogenation or--more challenging, but thermochemically feasible--to an oxygen-carbon bond effecting hydrogenolysis.
yielding the corresponding acid, in this case HOTf, which then serves as the proton source for both catalytic dehydrations and hydrogenation or hydrogenolysis reactions.
Some of the beta-lactams so obtained were subjected to hydrogenolysis with ammonium formate and Pd/C catalyst.
Catalytic conversion of abundant sugar polyols to alpha, omega-diols through ionic hydrogenation and hydrogenolysis reactions.