Results 81 to 90 of about 1,028 (242)
A Short Total Synthesis of the Daucane Sesquiterpenoid Ferutinin
Only nine steps were required to access the bioactive daucane sesquiterpene ester ferutinin (1) from 3‐methyl‐2‐cyclopentenone (3) and allyl p‐tolyl sulfoxide. A one‐pot 1,4‐addition/aldol sequence was used to rapidly provide diene 2 (TBS = tert‐butyldimethylsilyl), ring‐closing metathesis of which followed by alkylation and acylation gave rise to the ...
Christiane Osthaar +3 more
wiley +1 more source
This study investigates how subtle aliphatic substituent differences in racemic cinnamyl 2‐aminoanilides affect chiral recognition on amylose tris(3,5‐dimethylphenylcarbamate). Pronounced enantioselectivity changes arose from minimal structural variations. Mobile phase effects were examined, with 2‐propanol improving resolution.
Selen Gözde Kaya +5 more
wiley +1 more source
Cyclodextrins are the most often applied chiral selectors in CE enantioseparations. In combination with NMR spectroscopy and molecular modeling, studies for an understanding of chiral recognition underlying enantioseparations have been performed.
Gerhard K. E. Scriba
wiley +1 more source
Human serum albumin‐based high‐performance liquid chromatography and cyclodextrin‐based capillary electrokinetic chromatography were used for the chiral separation of azoles. Although only two of the five tested azoles could be enantioseparated by liquid chromatography, all of them were separated by capillary electrokinetic chromatography using single ...
Sarah Moreau +3 more
wiley +1 more source
Logic circuit device and molecular computer are idealized binary tools that implement manifold signal transformation and operation and is a basic component of integrated circuits and is widely used in computer, computerized numerical control, and ...
Xiao Lian +3 more
core +1 more source
Photooxidation of 18‐Carbon Polyunsaturated Fatty Acids to Prepare Mono‐Hydroxylated Octadecanoids
We developed a fast and simple one‐step synthetic strategy to produce mono‐hydroxylated metabolites based on the photosensitized oxidation of 18‐carbon polyunsaturated fatty acids (PUFAs). This approach could likely be extended to other PUFAs, suggesting that photosensitized oxidation could be employed to rapidly prepare hydroperoxides from multiple ...
Johanna Revol‐Cavalier +2 more
wiley +1 more source
The continuing significance of chiral agrochemicals
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley +1 more source
Catalisadores para esterificação e transesterificação e modificações de eletrodos de pasta de carbono para detecção de fosfatos baseados na técnica de molecular imprinting [PDF]
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.Esta tese objetivou o desenvolvimento de catalisadores para as reações de esterificação e ...
Quint, Marcelo Luiz
core
Enhanced Biocatalysis in Nanofluidic Membrane Reactors With Goldilocks Nanopores for Enzymes
We show that enzyme confinement within the three‐dimensionally interconnected nanochannels of a polyurea molecular network membrane, featuring pore‐size tunability to match the enzyme size, enables a highly active nanofluidic reactor platform. Stable continuous‐flow operation for >200 h and a 30 000‐fold increase in specific space‐time yield over ...
Wangsuk Oh, Ji‐Woong Park
wiley +1 more source
A modular electropolymerization strategy is used to covalently graft a vinyl‐terminated Co(II) molecular catalyst onto allyl 2D germanane. This molecular programming approach yields a 2D Xene nanozyme with implanted peroxidase‐like activity, enabling sensitive and selective electrochemical detection of hydrogen peroxide and the monitoring of ...
Yiming Lei +3 more
wiley +1 more source

