Ligand Effect in Alkali‐Metal‐Catalyzed Transfer Hydrogenation of Ketones

2019 ◽  
Vol 25 (50) ◽  
pp. 11734-11744 ◽  
Author(s):  
Iryna D. Alshakova ◽  
Hayden C. Foy ◽  
Travis Dudding ◽  
Georgii I. Nikonov
Keyword(s):  
Alkali Metal ◽  
Transfer Hydrogenation ◽  
Ligand Effect ◽  
Metal Catalyzed

Alkali metal catalyzed carbon dioxide gasification of carbon

1992 ◽  
Vol 6 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hiroyuki Ohme ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Gasification Of Carbon ◽  
Metal Catalyzed ◽  
Carbon Dioxide Gasification

Alkali-Metal-Catalyzed Cross-Dehydrogenative Couplings of Hydrosilanes with Amines

ChemCatChem ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 1373-1378 ◽  
Author(s):  
Srinivas Anga ◽  
Yann Sarazin ◽  
Jean-François Carpentier ◽  
Tarun K. Panda
Keyword(s):  
Alkali Metal ◽  
Metal Catalyzed

scholarly journals A combination of experimental and computational methods to study the reactions during a Lignin-First approach

2020 ◽  
Vol 92 (4) ◽  
pp. 631-639
Author(s):  
Ivan Kumaniaev ◽  
Elena Subbotina ◽  
Maxim V. Galkin ◽  
Pemikar Srifa ◽  
Susanna Monti ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Transfer ◽  
Transfer Hydrogenation ◽  
Metal Catalyst ◽  
Main Role ◽  
One Pot ◽  
Transition Metal Catalyst ◽  
Transition Metal Catalyzed ◽  
Catalyzed Reactions ◽  
Metal Catalyzed

AbstractCurrent pulping technologies only valorize the cellulosic fiber giving total yields from biomass below 50 %. Catalytic fractionation enables valorization of both cellulose, lignin, and, optionally, also the hemicellulose. The process consists of two operations occurring in one pot: (1) solvolysis to separate lignin and hemicellulose from cellulose, and (2) transition metal catalyzed reactions to depolymerize lignin and to stabilized monophenolic products. In this article, new insights into the roles of the solvolysis step as well as the operation of the transition metal catalyst are given. By separating the solvolysis and transition metal catalyzed hydrogen transfer reactions in space and time by applying a flow-through set-up, we have been able to study the solvolysis and transition metal catalyzed reactions separately. Interestingly, the solvolysis generates a high amount of monophenolic compounds by pealing off the end groups from the lignin polymer and the main role of the transition metal catalyst is to stabilize these monomers by transfer hydrogenation/hydrogenolysis reactions. The experimental data from the transition metal catalyzed transfer hydrogenation/hydrogenolysis reactions was supported by molecular dynamics simulations using ReaXFF.

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