Simen Antonsen
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View article: Estimation and Control of WRRF Biogas Production
Estimation and Control of WRRF Biogas Production Open
The development of resource-efficient digital technologies is a critical challenge in the wastewater sector. This industrial case study, conducted in collaboration with the Veas Water Resource Recovery Facility in Norway, focused on creati…
View article: Experimental and Theoretical Study of the OH-Initiated Degradation of Piperidine under Simulated Atmospheric Conditions
Experimental and Theoretical Study of the OH-Initiated Degradation of Piperidine under Simulated Atmospheric Conditions Open
The OH-initiated photo-oxidation of piperidine and the photolysis of 1-nitrosopiperidine were investigated in a large atmospheric simulation chamber and in theoretical calculations based on CCSD(T*)-F12a/aug-cc-pVTZ//M062X/aug-cc-pVTZ quan…
View article: Biological Evaluations, NMR Analyses, Molecular Modeling Studies, and Overview of the Synthesis of the Marine Natural Product (−)-Mucosin
Biological Evaluations, NMR Analyses, Molecular Modeling Studies, and Overview of the Synthesis of the Marine Natural Product (−)-Mucosin Open
Natural products obtained from marine organisms continue to be a rich source of novel structural architecture and of importance in drug discovery, medicine, and health. However, the success of such endeavors depends on the exact structural…
View article: Modeling and control of WRRF biogas production
Modeling and control of WRRF biogas production Open
Wastewater treatment sector uses about 1 percent of total energy consumption in European Union, hence development of energy-efficient digital technologies is an urgent challenge. The aim of this article is to develop energy-efficient contr…
View article: The Alkyne Zipper Reaction: A Useful Tool in Synthetic Chemistry
The Alkyne Zipper Reaction: A Useful Tool in Synthetic Chemistry Open
The alkyne zipper reaction is an internal-to-terminal alkyne isomerization reaction with many interesting applications in synthetic chemistry, as it constitutes an efficient means of achieving acetylene functionalization. A review of its a…
View article: The Synthesis of 3-(R)- and 3-(S)-Hydroxyeicosapentaenoic Acid
The Synthesis of 3-(R)- and 3-(S)-Hydroxyeicosapentaenoic Acid Open
Monohydroxylated polyunsaturated fatty acids belonging to the oxylipin class of natural products are present in marine and terrestrial sources as well as in the human body. Due to their biological activities and role in diverse biosyntheti…
View article: Atmospheric Chemistry of 2-Amino-2-methyl-1-propanol: A Theoretical and Experimental Study of the OH-Initiated Degradation under Simulated Atmospheric Conditions
Atmospheric Chemistry of 2-Amino-2-methyl-1-propanol: A Theoretical and Experimental Study of the OH-Initiated Degradation under Simulated Atmospheric Conditions Open
The OH-initiated degradation of 2-amino-2-methyl-1-propanol [CH3C(NH2)(CH3)CH2OH, AMP] was investigated in a large atmospheric simulation chamber, employing time-resolved online high-resolution proton-transfer reaction-time-of-flight mass …
View article: Alginate Degradation: Insights Obtained through Characterization of a Thermophilic Exolytic Alginate Lyase
Alginate Degradation: Insights Obtained through Characterization of a Thermophilic Exolytic Alginate Lyase Open
The potential markets for seaweed-derived products and seaweed processing technologies are growing, yet commercial enzyme cocktails for complete conversion of seaweed to fermentable sugars are not available. Such an enzyme cocktail would r…
View article: Experimental and Theoretical Study of the OH-Initiated Degradation of Piperazine under Simulated Atmospheric Conditions
Experimental and Theoretical Study of the OH-Initiated Degradation of Piperazine under Simulated Atmospheric Conditions Open
The OH-initiated photo-oxidation of piperazine and 1-nitropiperazine as well as the photolysis of 1-nitrosopiperazine were investigated in a large atmospheric simulation chamber. The rate coefficient for the reaction of piperazine with OH …
View article: Atmospheric Chemistry of Methyl Isocyanide–An Experimental and Theoretical Study
Atmospheric Chemistry of Methyl Isocyanide–An Experimental and Theoretical Study Open
The reaction of CH3NC with OH radicals was studied in smog chamber experiments employing PTR-ToF-MS and long-path FTIR detection. The rate coefficient was determined to be kCH3NC+OH = (7.9 ± 0.6) × 10-11 cm3 molecule-1 s-1 at 298 ± 3 K and…
View article: Two-Phase Dibromocyclopropanation of Unsaturated Alcohols Using Flow Chemistry
Two-Phase Dibromocyclopropanation of Unsaturated Alcohols Using Flow Chemistry Open
Dibromocyclopropanations are conventionally done by addition of dibromocarbene to alkenes under phase-transfer conditions in batch reactions using a strong base (50% NaOH (aq)), vigorous stirring and long reaction times. We have shown that…
View article: Atmospheric chemistry of diazomethane – an experimental and theoretical study
Atmospheric chemistry of diazomethane – an experimental and theoretical study Open
The kinetics of the O3, OH and NO3 radical reactions with diazomethane were studied in smog chamber experiments employing long-path FTIR and PTR-ToF-MS detection. The rate coefficients were determined to be k CH2NN+O3 = (3.2 ± 0.4) × 10−17…
View article: Synthesis of the Enantiomers of Thioridazine
Synthesis of the Enantiomers of Thioridazine Open
Thioridazine, a well-known antipsychotic drug, has shown promising effects on several bacterial strains (including Mycobacterium tuberculosis and methicillin-resistant Staphylococcus aureus). Suppressive effects towards selected cancer cel…
View article: Can we make Chitosan by Enzymatic Deacetylation of Chitin?
Can we make Chitosan by Enzymatic Deacetylation of Chitin? Open
Chitin, an insoluble linear polymer of β-1,4-N-acetyl-d-glucosamine (GlcNAc; A), can be converted to chitosan, a soluble heteropolymer of GlcNAc and d-glucosamine (GlcN; D) residues, by partial deacetylation. In nature, deacetylation of ch…
View article: CCDC 1865776: Experimental Crystal Structure Determination
CCDC 1865776: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Theoretical and Experimental Study on the Reaction of <i>tert</i>-Butylamine with OH Radicals in the Atmosphere
Theoretical and Experimental Study on the Reaction of <i>tert</i>-Butylamine with OH Radicals in the Atmosphere Open
The OH-initiated atmospheric degradation of tert-butylamine (tBA), (CH3)3CNH2, was investigated in a detailed quantum chemistry study and in laboratory experiments at the European Photoreactor (EUPHORE) in Spain. The reaction was found to …
View article: CCDC 1535632: Experimental Crystal Structure Determination
CCDC 1535632: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Stereopermutation on the Putative Structure of the Marine Natural Product Mucosin
Stereopermutation on the Putative Structure of the Marine Natural Product Mucosin Open
A stereodivergent total synthesis has been executed based on the plausibly misassigned structure of the unusual marine hydrindane mucosin (1). The topological connectivity of the four contiguous all-carbon stereocenters has been examined b…
View article: Total synthesis as a tool for structural elucidation of some marine lipid natural products
Total synthesis as a tool for structural elucidation of some marine lipid natural products Open
Paper I describes the total synthesis of the proposed structure of mucosin, a C20 fatty acid, isolated from a Mediterranean sponge, Reniera mucosa. The synthetic pathway started with the transformation of 1,4-cyclohexadiene to a known meso…
View article: Safe Synthesis of Alkylhydroxy and Alkylamino Nitramines
Safe Synthesis of Alkylhydroxy and Alkylamino Nitramines Open
Three different protocols for the syntheses of hydroxyalkylnitramines are presented and compared. Safety issues regarding the synthesis of nitramines are also discussed.
View article: CCDC 1484546: Experimental Crystal Structure Determination
CCDC 1484546: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …