Results 31 to 40 of about 302 (145)

The Role of Chalcogen Bonding in Organic Dichalcogenides of Biological Interest

Chemistry – An Asian Journal, Volume 20, Issue 10, May 15, 2025.
Experimental and theoretical studies consistently show that selenium and tellurium in dichalcogenides compounds can function as efficient chalcogen bond (ChB) donors. Their electrophilic behavior may suggest that the formation of a ChB could represent the preliminary step of the molecular mechanism resulting in the anti‐redox activity of ...
Abhishek Tripathi, Miriam Calabrese, Andrea Pizzi, Arun Dhaka, Nicola Demitri, David R. Turner, Glen B. Deacon, Antonio Frontera, Giuseppe Resnati, Harkesh B. Singh   +9 more
wiley   +1 more source

SYNTHESIS OF NOVEL UNSATURATED ORGANOTELLURIUM COMPOUNDS WITH POTENTIAL BIOLOGICAL ACTIVITY

Acta Biomedica Scientifica, 2012
Efficient synthetic approaches to novel organotellurium. compounds with potential biologically activity were elaborated, based, on acetylenes and tellurium, tetrahalid.es.
M. V. Musalova, V. A. Potapov, S. V. Amosova   +2 more
doaj  

Kumada‐Tamao Catalyst‐Transfer Condensation Polymerization of AB2 Monomer: Synthesis of Well‐Defined Hyperbranched Poly(thienylene‐phenylene)

Macromolecular Rapid Communications, Volume 46, Issue 9, May 2025.
Kumada‐Tamao catalyst‐transfer condensation polymerization of AB2 monomer in the presence of Ni(dppe)Cl2 in THF affords hyperbranched poly(thienylene‐phenylene) with a narrow molecular weight distribution and controlled molecular weight, which is close to the theoretical molecular weight calculated from the ratio of consumed AB2 monomer to Ni(dppe)Cl2.
Yoshihiro Ohta, Toshiki Hirota, Arisa Yamamoto, Tsutomu Yokozawa   +3 more
wiley   +1 more source

Isonitrile Photochemistry: A Functional Group Class Coming in from the Cold

Chemistry – A European Journal, Volume 30, Issue 64, November 15, 2024.
Isonitriles, often neglected for their unpleasant smell, have fascinated many generations of chemists thanks to unique reactivity modes. The present concept article, by retracing the seeds of isonitrile photochemistry, points out the hidden opportunities offered by visible light photo(redox) catalysis to promote key advancements in the field.
Mariateresa Giustiniano
wiley   +1 more source

Organotellurium(II) and ‐(IV) Compounds with Picolinoylbis(thioureas): From Simple 1 : 1 Adducts to Multimetallic Aggregates

European Journal of Inorganic Chemistry, Volume 27, Issue 29, October 11, 2024.
Bifunctional 2,6‐dipicolinoylbis(N,N‐diethylthioureas) (H2LEt) form tellurium compounds of a remarkable structural variety. Tellurium(IV) or tellurium(II) products are formed depending on the reaction conditions applied. The formation of heterobimetallic products is observed when transition metal ions are present in such reaction mixtures. They contain
Sailer S. dos Santos, Vania D. Schwade, Ernesto Schulz Lang, Chien Thang Pham, Maximilian Roca Jungfer, Ulrich Abram, Hung Huy Nguyen   +6 more
wiley   +1 more source

New Radical Coupling Reactions with Organotellurium Compounds.

Journal of Synthetic Organic Chemistry, Japan, 2002
Organotellurium compounds reversibly generate carbon-centered radicals upon photolysis and thermolysis, and the radicals thus generated can be used for carbon-carbon bond formation with a variety of radical acceptors. For example, a variety of organotellurium compounds react with quinones to give the corresponding adducts, including polyprenyl ...
Yamago, S, Yoshida, J
openaire   +2 more sources

A Novel Organotellurium Compound (RT-01) as a New Antileishmanial Agent [PDF]

The Korean Journal of Parasitology, 2009
Leishmaniasis is a neglected disease and endemic in developing countries. A lack of adequate and definitive chemotherapeutic agents to fight against this infection has led to the investigation of numerous compounds. The aim of this study was to investigate the effect of RT-01, an organotellurane compound presenting biological activities, in 2 ...
Camila Bárbara Cantalupo, Lima, Wagner Welber, Arrais-Silva, Rodrigo Luiz Oliveira Rodrigues, Cunha, Selma, Giorgio   +3 more
openaire   +2 more sources

From small to large—The application of in situ polymerization within tumor cells

Aggregate, Volume 5, Issue 4, August 2024.
In situ polymerization within tumor cells can be achieved by chain‐reaction polymerization and step‐growth polymerization. The former is classified as light‐triggered, transition metals‐triggered, reactive oxygen species‐triggered, and enzyme‐triggered polymerization based on the mode of initiation, while the latter includes condensation polymerization
Mingjie Jia, Yonghang Liu, Peng Wei, Tao Yi   +3 more
wiley   +1 more source

Halogen, Chalcogen, Pnictogen, and Tetrel Bonding in Non‐Covalent Organocatalysis: An Update

Angewandte Chemie International Edition, Volume 63, Issue 31, July 29, 2024.
Recent developments on the use of non‐transient non‐covalent interactions based on elements of groups 14–17 in organic synthesis and organocatalysis are discussed. While halogen and chalcogen bonding are now clearly established in this area, applications of pnictogen and particularly tetrel bonding are only starting to emerge.
Dragana Jovanovic, Meghana Poliyodath Mohanan, Stefan M. Huber   +2 more
wiley   +1 more source

A Highly Sterically Encumbered Boron Lewis Acid Enabled by an Organotellurium‐Based Ligand

Chemistry – A European Journal, Volume 30, Issue 36, June 25, 2024.
The new boron Lewis acid B[OTeF3(C6F5)2]3 combines one of the most sterically encumbered boron centres with a Lewis acidity comparable to that of B(C6F5)3. It additionally provides ligand transfer reactivity towards fluoride compounds as shown in the synthesis of an Au(III) complex and a hypervalent iodine species. Abstract Lewis acidic boron compounds
Daniel Wegener, Alberto Pérez‐Bitrián, Niklas Limberg, Anja Wiesner, Kurt F. Hoffmann, Sebastian Riedel   +5 more
wiley   +1 more source