Results 21 to 30 of about 12,297 (288)

Photoswitchable electron-rich phosphines: using light to modulate the electron-donating ability of phosphines

, 2023
The synthesis and properties of photoswitchable electron-rich phosphines containing N-heterocyclic imines equipped with a photochromic dithienylethene unit are reported.The synthesis and properties of photoswitchable electron-rich phosphines containing N-
Janssen-Müller, Daniel, Sietmann, Alexander, Wilm, Lukas F. B., Das, Mowpriya, Das, Ankita, Seidl, Michael, Freitag, Matthias, Dielmann, Fabian, Buß, Florenz, Glorius, Frank   +9 more
core   +1 more source

Terphenyl(bisamino)phosphines: Electron-rich Ligands for Gold-Catalysis

, 2020
Terphenyl(bisamino)phosphines have been identified as effective ligands in cationic gold(I) complexes for the hydroamination of acetylenes. These systems are related to Buchwald phosphines and their steric properties have been evaluated.
Malte, Fischer, André, Schumann, Jan-Erik, Siewert, Christian, Hering-Junghans, Christoph, Schmidt   +4 more
core   +1 more source

Rhodium-catalysed direct hydroarylation of alkenes and alkynes with phosphines through phosphorous-assisted C−H activation

Nature Communications, 2019
Dialkyl biaryl phosphines find wide application in catalysis as ligands. Here, the authors report a rhodium-catalysed hydroarylation of alkenes and alkynes with tertiary phosphines through P(III)-chelation assisted C-H activation affording a library of ...
Dingyi Wang, Ben Dong, Yandong Wang, Jiasheng Qian, Jinjun Zhu, Yue Zhao, Zhuangzhi Shi   +6 more
doaj   +1 more source

Primary Phosphines and Phosphine Oxides with a Stereogenic Carbon Center Adjacent to the Phosphorus Atom: Synthesis and Anti-Markovnikov Radical Addition to Alkenes

Organics, 2021
Organophosphorus compounds with stereogenic phosphorus and carbon atoms have received increasing attention. In this regards, primary phosphines with a stereogenic carbon atom adjacent to the phosphorus atom were synthesized by the reduction in ...
Toshiaki Murai, Ryota Wada, Kouji Iwata, Yuuki Maekawa, Kazuma Kuwabara, Mao Minoura   +5 more
doaj   +1 more source

α-Cationic Phosphines: from Curiosities to Powerful Ancillary Ligands

, 2021
The distinguishing feature of α-cationic phosphines is the presence of at least one substituent, normally (hetero)cyclic and positively charged, which is directly attached to the phosphorus atom.
Rugen, Christian J., Alcarazo, Manuel
core   +1 more source

Effect of aluminium phosphide (ALP) gas inhalation exposure on adipose tissue characteristics and histological toxicity in male rats

Journal of Taibah University for Science, 2020
Considering the increasing incidence of fatal aluminium phosphide (ALP) poisoning and its toxicological aspects and also the paucity of our knowledge concerning the ALP effect on adipose tissue and adipokines, the present study aimed to assess the effect
Zoya Tahergorabi, Mahmoud Zardast, Ali Naghizadeh, Borhan Mansouri, Iman Nakhaei, Mohsen Zangouei   +5 more
doaj   +1 more source

Photoswitchable phosphines in catalysis

, 2020
International audiencePhotoswitchable catalysts based on phosphorus ligands have been overlooked so far, despite the growing current interest for catalysts control through external stimuli.
Marinetti, Angela, Nawel Goual, Vincent Delattre, Delattre, Vincent, Fabrizio Medici, Angela Marinetti, Medici, Fabrizio, Arnaud Voituriez, Voituriez, Arnaud, Goual, Nawel   +9 more
core   +1 more source

Cyclopropeniminium Ions Exhibit Unique Reactivity Profiles with Bioorthogonal Phosphines [PDF]

, 2019
We report a new ligation of cyclopropeniminium ions with bioorthogonal phosphines. Cyclopropeniminium scaffolds are sufficiently stable in biological media and, unlike related isomers, react with functionalized phosphines via formal 1,2-addition to a π ...
Heiss, Tyler K, Prescher, Jennifer A
core   +3 more sources

Intramolecular Phosphine-Promoted Knoevenagel Based Redox-Reaction

Molecules, 2022
A Knoevenagel based redox-reaction promoted by intramolecular phosphine sources is presented for the first time. The influence of different diketones, aldehydes, bases and acids was investigated. The effects of different substituents were evaluated based
Niklas Feuge, Jan C. Namyslo, Dieter E. Kaufmann, René Wilhelm   +3 more
doaj   +1 more source

Sensing Organophosphorus Compounds with SWCNT Films

Sensors, 2021
Promising electrical properties of single-walled carbon nanotubes (SWCNTs) open a spectrum of applications for this material. As the SWCNT electronic characteristics respond well to the presence of various analytes, this makes them highly sensitive ...
Mika Sahlman, Mari Lundström, Dawid Janas   +2 more
doaj   +1 more source