-
Foscato, Marco; Occhipinti, Giovanni; Eliasson, Sondre Hilmar Hopen & Jensen, Vidar Remi
(2023).
Automated De Novo Design and Experimental Validation of Ru-Catalysts for Metathesis: Testing the Limits of a Correlation-Based Design Criterion.
-
Eliasson, Sondre Hilmar Hopen; de Giovanetti, Marinella; Bore, Sigbjørn Løland; Bortoli, Marco; Cascella, Michele & Eisenstein, Odile
(2023).
Machine Learned Potential for Organolithium in THF.
-
Eliasson, Sondre Hilmar Hopen; de Giovanetti, Marinella; Bore, Sigbjørn Løland; Bortoli, Marco & Cascella, Michele
(2023).
Machine Learned Potential for Organolithium Compounds in THF. .
-
Tysse, Morten; Jensen, Vidar Remi; Børve, Knut J.; Eliasson, Sondre Hilmar Hopen & Uggerud, Einar
(2021).
Electrocatalytic Reduction of CO2 to CO by Iron and Zinc Porphyrin and Bacteriochlorin - A DFT study.
-
Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2019).
The benefit of a hemilabile ligand in deoxygenation of fatty acids to 1-alkenes.
Show summary
One of the most important tasks for chemistry in our time is to contribute to sustainable chemical
production. A green industrial process for linear α-olefins, the arguably most important class of
petrochemical intermediates, from renewable resources would be a major contribution to this
end. Plant oils are attractive renewable feedstocks for this purpose because their fatty acids may
be converted to α-olefins by deoxygenation.[1] For the most selective of these deoxygenation
reactions, transition-metal catalyzed decarbonylative dehydration, the density functional theory
(DFT) calculations have just started to offer valuable mechanistic insight,[2] and the use of this
insight in rational catalyst design has been facilitated by the arrival of the first well-defined
precatalyst for this reaction, Pd(cinnamyl)Cl(DPEphos) (A1).[3] Here, we present DFT calculations
showing how, in A1, the hemilability of DPEphos, a classical P–O–P diphosphine, contributes to a
low overall barrier and high α-selectivity. DPEphos facilitates decarbonylation by first switching
from bidentate to monodentate binding to create a coordination site for CO. The recoordination
of the dangling phosphine displaces the Pd-bound CO, a co-product that must leave the reactor
for the reaction to proceed, and the escaping CO is here modelled using a low pressure in the
calculation of its thermochemical corrections. Finally, the role of the hemilabile ligand suggests
that further improvements in the decarbonylative dehydration of fatty acids to α-olefins might be
achieved by exploring new, potentially asymmetric, hemilabile ligands.
-
Heggstad, Katrine; Grønstad, Line Førre; Eliasson, Sondre H. Hopen; Ghaffari, Maryam; Lernevall, Lina Sophie Daughaard & Markova, Valeria
[Show all 10 contributors for this article]
(2017).
Kunnskapskanalen: Forsker grandprix-2017 Bergen.
[TV].
https://tv.nrk.no/serie/kunnskapskanalen/MDDP17002617/31-12-.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2017).
Sustainable Transformation of Fatty Acids to Alpha-Olefins.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2017).
A heterogeneous catalyst for the sustainable synthesis of linear alpha olefins from renewable fatty acids.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2017).
Palladium catalysts for the transformation of fatty
acids to alpha olefins.
-
Eliasson, Sondre H. Hopen; Chatterjee, Anamitra; Occhipinti, Giovanni & Jensen, Vidar Remi
(2017).
The Mechanism of Rh-Catalyzed Transformation of Fatty Acids to Alpha-olefins; A DFT-Study.
-
Eliasson, Sondre H. Hopen
(2017).
Omdanning av fornybart feitt til fossilt brennstoff vha. datasimuleringar.
-
Foscato, Marco; Occhipinti, Giovanni; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2017).
In Silico Evaluation of Olefin Metathesis Catalysts: the Importance of Monitoring More than One Elementary Reaction.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2016).
Synthesis of Alpha-Olefins from Renewable Fatty Acids.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2016).
Palldium Precatalysts for Decarbonylative Dehydration of Fatty Acids to Linear Alpha Olefins.
-
Chatterjee, Anamitra; Eliasson, Sondre H. Hopen & Jensen, Vidar Remi
(2016).
New Organometallic Catalyst for Biomass Valorization.
Show summary
Linear alpha-olefins count among the most important industrial intermediates and are used in the production of polymers and other materials and chemicals. Currently, these olefins are almost exclusively produced from fossil resources. As the world’s oil reserves continue to diminish and global warming looms, production of alpha olefins from renewable feedstocks is an important goal. One of the most promising routes in this respect is transition-metal-catalyzed decarbonylative dehydration of fatty acids. However, the decarbonylative dehydration reaction is still poorly understood and the existing catalysts and processes are not efficient enough for industrial implementation. Here we present new and more efficient organometallic catalysts for this reaction, catalysts that, under mild conditions, reach higher TOFs and require less phosphine excess than previously reported catalysts.
-
Eliasson, Sondre H. Hopen; Foscato, Marco; Occhipinti, Giovanni & Jensen, Vidar Remi
(2015).
Automated Prediction of Optimized Ruthenium Catalysts for Olefin Metathesis.
-
Eliasson, Sondre H. Hopen; Foscato, Marco; Occhipinti, Giovanni & Jensen, Vidar Remi
(2015).
Automated Prediction of Optimized Ruthenium Catalysts for Olefin Metathesis.