Results 31 to 40 of about 379,552 (160)

N-Heterocyclic-Carbene-Catalyzed Domino Reactions via Two or More Activation Modes

iScience, 2018
Summary: Organocatalytic domino processes have become a rapidly growing area of research. N-heterocyclic carbenes (NHCs) have emerged as powerful organocatalysts for various transformations and continue to have widespread application. In the last decade,
Xiang-Yu Chen, Sun Li, Fabrizio Vetica, Mukesh Kumar, Dieter Enders   +4 more
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Vladimir Prelog i organska kemija u proteklom stoljeću [PDF]

Kemija u Industriji, 2007
Organic chemistry in the past century has undergone several profound changes and Vlado Prelog, as the great organic chemist of our time, was actively involved in these changes. During the first half of the 20th century, synthesis of new organic compounds
Sunko, D.
doaj  

Revolutionizing organic synthesis through green chemistry: metal-free, bio-based, and microwave-assisted methods

Frontiers in Chemistry
The growing emphasis on sustainable development has propelled green chemistry into a vital framework for designing environmentally benign chemical processes.
Sayani Banerjee, Sakthi Periyasamy, Kathiravan Muthukumaradoss, Priya Deivasigamani, Venkatesan Saravanan   +4 more
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Flipping the class – University chemistry students’ experiences from a new teaching and learning approach

Chemistry Teacher International, 2019
University chemistry courses have for a long time had a similar conventional approach to teaching, with chemistry professors lecturing in a traditional manner.
Broman Karolina, Johnels Dan
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Data-Driven Astrochemistry: One Step Further within the Origin of Life Puzzle

Life, 2018
Astrochemistry, meteoritics and chemical analytics represent a manifold scientific field, including various disciplines. In this review, clarifications on astrochemistry, comet chemistry, laboratory astrophysics and meteoritic research with respect to ...
Alexander Ruf, Louis L. S. d’Hendecourt, Philippe Schmitt-Kopplin   +2 more
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Investigando cinza da casca do arroz como fase estacionária em cromatografia: uma proposta de aula experimental nos cursos de graduação

Química Nova, 2012
This article describes an experiment that involves the extraction and separation of the pigments of spinach extract by column chromatography using the silica obtained from rice husk ash as a stationary phase.
João R. de Freitas Filho, Jucleiton J. Rufino de Freitas, Ladjane Pereira da Silva, Juliano C. Rufino Freitas   +3 more
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Iron-based trinuclear metal-organic nanostructures on a surface with local charge accumulation

Nature Communications, 2018
Polynuclear metal-organic coordination complexes are often inaccessible by traditional synthetic chemistry methods. Here, the authors use on-surface supramolecular chemistry to form a planar trinuclear Fe complex, in which an accumulation of electrons ...
Cornelius Krull, Marina Castelli, Prokop Hapala, Dhaneesh Kumar, Anton Tadich, Martina Capsoni, Mark T. Edmonds, Jack Hellerstedt, Sarah A. Burke, Pavel Jelinek, Agustin Schiffrin   +10 more
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The Role of Analytical Chemistry in Agricultural Research: Main goals, Challenges, Demands

CHIMIA, 2002
Analytical chemistry has always played an important role in agricultural research, but its objectives and contributions have changed over time. In this paper a description of the historical development is given.
Hans Jörg Bachmann, Thomas Bucheli, Jean Paul, Hans Stünzi, Hans-Ruedi Bosshard   +4 more
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Chiral Selenium Electrophiles on Solid-Support

CHIMIA, 2001
Organoselenium chemistry has developed rapidly and selenium-based methods are now very useful in synthetic chemistry. The selective introduction of various functionalities into complex molecules can be accomplished under very mild reaction ...
Lars Uehlin, Thomas Wirth
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Anti-Orthopoxvirus Activity of Amantadine and Rimantadine Derivatives—In Vitro Testing and Molecular Modeling

Chemistry
In 2022, the number of mpox cases spiked worldwide, leading to a surge in scientific research on members of the Orthopoxvirus genus and the discovery of new compounds exhibiting anti-orthopoxvirus activity.
Ivan A. Moskalev, Ekaterina A. Akishina, Evgenij A. Dikusar, Olga I. Yarovaya, Sophia S. Borisevich, Edward M. Khamitov, Alexey Yu. Fedorov, Sergey G. Arkhipov, Nikolay I. Bormotov, Olga A. Serova, Larisa N. Shishkina, Vladimir. I. Potkin, Nariman F. Salakhutdinov   +12 more
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