Results 11 to 20 of about 12,297 (288)

Chiral phosphines in nucleophilic organocatalysis

Beilstein Journal of Organic Chemistry, 2014
This review discusses the tertiary phosphines possessing various chiral skeletons that have been used in asymmetric nucleophilic organocatalytic reactions, including annulations of allenes, alkynes, and Morita–Baylis–Hillman (MBH) acetates, carbonates ...
Yumei Xiao, Zhanhu Sun, Hongchao Guo, Ohyun Kwon   +3 more
doaj   +2 more sources

Two out of Three Musketeers Fight against Cancer: Synthesis, Physicochemical, and Biological Properties of Phosphino Cu^I, Ru^II, Ir^III Complexes

Pharmaceuticals, 2022
Two novel phosphine ligands, Ph2PCH2N(CH2CH3)3 (1) and Ph2PCH2N(CH2CH2CH2CH3)2 (2), and six new metal (Cu(I), Ir(III) and Ru(II)) complexes with those ligands: iridium(III) complexes: Ir(η5-Cp*)Cl2(1) (1a), Ir(η5-Cp*)Cl2(2) (2a) (Cp ...
Urszula K. Komarnicka, Alessandro Niorettini, Sandra Kozieł, Barbara Pucelik, Agata Barzowska, Daria Wojtala, Aleksandra Ziółkowska, Monika Lesiów, Agnieszka Kyzioł, Stefano Caramori, Marina Porchia, Alina Bieńko   +11 more
doaj   +1 more source

Serinol-Based Versatile Disulfide-Reducing Reagent

Molecules, 2023
Here, we report the synthesis of disulfide-reducing agents 2-(dibenzylamino) propane-1,3-dithiol (DPDT) and 2-(dibenzylamino)-2-methylpropane-1,3-dithiol (DMPDT) from serinol and methyl serinol, respectively. DPDT was found to show greater stability than
Babita Kushwaha, Sinenhlanhla N. Mthembu, Anamika Sharma, Fernando Albericio, Beatriz G. de la Torre   +4 more
doaj   +1 more source

Copper-Phosphido Catalysis: Enantioselective Addition of Phosphines to Cyclopropenes

, 2023
We describe a copper-catalyst that promotes the addition of phosphines to cyclopropenes at ambient temperature. A range of cyclopropylphosphines bearing different steric and electronic properties can now be accessed in high yields and ...
Xintong, Hou, Stephanie A., Corio, Brian S., Daniel, Lindsey M., Weissman, Vy M., Dong, Jennifer S., Hirschi, Shaozhen, Nie   +6 more
core   +1 more source

Mechanisms of Phosphine Toxicity [PDF]

Journal of Toxicology, 2011
Fumigation with phosphine gas is by far the most widely used treatment for the protection of stored grain against insect pests. The development of high-level resistance in insects now threatens its continued use. As there is no suitable chemical to replace phosphine, it is essential to understand the mechanisms of phosphine toxicity to increase the ...
Nath, Nisa S., Bhattacharya, Ishita, Tuck, Andrew G., Schlipalius, David I., Ebert, Paul R.   +4 more
openaire   +6 more sources

Structure-Reactivity Relationships of Buchwald-Type Phosphines in Nickel-Catalyzed Cross-Couplings

, 2022
The dialkyl-ortho-biaryl class of phosphines, commonly known as Buchwald-type ligands, are among the most important phosphines in Pd-catalyzed cross-coupling catalysis.
Philip, Jeffrey, Abigail, Doyle, Samuel, Newman-Stonebraker, Jason, Wang   +3 more
core   +1 more source

Inhibition of Cancer Cell Proliferation and Bacterial Growth by Silver(I) Complexes Bearing a CH₃-Substituted Thiadiazole-Based Thioamide

Molecules, 2023
Ag(I) coordination compounds have recently attracted much attention as antiproliferative and antibacterial agents against a wide range of cancer cell lines and pathogens.
Despoina Varna, Elena Geromichalou, Georgia Karlioti, Rigini Papi, Panagiotis Dalezis, Antonios G. Hatzidimitriou, George Psomas, Theodora Choli-Papadopoulou, Dimitrios T. Trafalis, Panagiotis A. Angaridis   +9 more
doaj   +1 more source

Phosphines featuring a hexafluorocyclopentene skeleton: Synthesis, coordination properties, and applications for Lewis-acidic transition-metal catalysts

Results in Chemistry, 2019
Weakly σ-donating phosphines bearing a hexafluorocyclopentene skeleton were synthesized. The 1JPSe coupling constants of selenides of the fluorinated phosphines revealed substantially decreased s-character of the phosphorus lone pair orbitals of the ...
Tomohiro Agou, Nao Wada, Momoko Komatsu, Miki Nohara, Yoshiyuki Mizuhata, Norihiro Tokitoh, Takaaki Hosoya, Hiroki Fukumoto, Toshio Kubota   +8 more
doaj   +1 more source

CONFIRMATION OF CIRCUMSTELLAR PHOSPHINE [PDF]

The Astrophysical Journal, 2014
Accepted for publication in ApJ ...
Agúndez, M., Cernicharo, J., Decin, L., Encrenaz, P., Teyssier, D.   +4 more
openaire   +6 more sources

Diametric calix[6]arene-based phosphine gold(I) cavitands

Beilstein Journal of Organic Chemistry, 2022
We report the synthesis and characterization, in low polarity solvents, of a novel class of diametric phosphine gold(I) cavitands characterized by a 1,2,3-alternate geometry. Preliminary catalytic studies were performed on a model cycloisomerization of 1,
Gabriele Giovanardi, Andrea Secchi, Arturo Arduini, Gianpiero Cera   +3 more
doaj   +1 more source