Results 61 to 70 of about 1,567 (201)

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

Diphenyl Ditelluride Intoxication Triggers Histological Changes in Liver, Kidney, and Lung of Mice

Analytical Cellular Pathology, 2015
Tellurium compounds may be cytotoxic to different cells types. Thus, this work evaluated the effect of diphenyl ditelluride ((PhTe)2), an organotellurium commonly used in organic synthesis, on the morphology of liver, kidney, and lung.
Sônia Cristina Almeida da Luz, Melissa Falster Daubermann, Gustavo Roberto Thomé, Matheus Mülling dos Santos, Angelica Ramos, Gerson Torres Salazar, João Batista Teixeira da Rocha, Nilda Vargas Barbosa   +7 more
doaj   +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

Laser Photolysis and Thermolysis of Organic Selenides and Tellurides for Chemical Gas-phase Deposition of Nanostructured Materials

Molecules, 2009
Laser radiation-induced decomposition of gaseous organic selenides and tellurides resulting in chemical deposition of nanostructured materials on cold surfaces is reviewed with regard to the mechanism of the gas-phase decomposition and properties of the ...
Josef Pola, Akihiko Ouchi
doaj   +1 more source

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

The limits of precision monomer placement in chain growth polymerization [PDF]

, 2016
Precise control over the location of monomers in a polymer chain has been described as the ‘Holy Grail’ of polymer synthesis. Controlled chain growth polymerization techniques have brought this goal closer, allowing the preparation of multiblock ...
Gody, Guillaume, Harrisson, Simon, Perrier, Sébastien, Zetterlund, Per B.   +3 more
core   +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

Novel o-naphthoquinones induce apoptosis of EL-4 T lymphoma cells through the increase of reactive oxygen species [PDF]

, 2013
Novel β-lapachone analogs 2-phenyl-3,4-dihydro-2H-benzo[h]chromene-5,6-dione (NQ1), 2-p-tolyl-3,4-dihydro-2H-benzo[h]chromene-5,6-dione (NQ3) and 2-methyl-2-phenyl-3,4-dihydro-2H-benzo[h]chromene-5,6-dione (NQ7), which have trypanocidal activity, were ...
Barreiro Arcos, María Laura, Cremaschi, Graciela Alicia, Di Rosso, María Emilia, Dubin, Marta, Elingold, Igal, Ferreira, Sabrina Baptista, Ferreira, Vitor Francisco, Galleano, Monica Liliana, Sterle, Helena Andrea   +8 more
core   +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