Results 31 to 40 of about 14,313 (278)

Development of Mononuclear (Arene) Ruthenium Complexes as Anticancer Agents: A Review [PDF]

open access: yesOUSL Journal, 2022
(Arene)ruthenium complexes have displayed promising activity against cancer and showed fewer side effects compared to platinum-based drugs. Activity tuning of arene complexes have been explored by varying, amines, phosphines and other N^N, N^O, N^S ...
Thilini U. Amarasinghe, Sarath D. Perera
doaj   +1 more source

Room Temperature Ni(II) Catalyzed Hydrophosphination and Cyclotrimerization of Alkynes

open access: yesInorganics, 2018
The catalytic activity of nickel complexes in hydrophosphination involving secondary phosphines is not a commonly studied transformation. Beyond a small number of stand-out examples, many reports in the literature focus on the use of simple nickel salts.
Ruth L. Webster
doaj   +1 more source

Dialkyl(1,3-diarylimidazolin-2-ylidenamino)phosphines: Strongly Electron-Donating, Buchwald-Type Phosphines

open access: yes, 2018
The synthesis and properties of a series of strongly electron-donating, sterically demanding dialkyl­(1,3-diaryl­imidazolin-2-ylidenamino)­phosphines (IAPs) are reported.
Heidar Darmandeh (5714243)   +7 more
core   +2 more sources

Predicting the Air Stability of Phosphines

open access: yes
DFT calculations form the basis of a model capable of predicting the air stability of phosphines. The sensitivity of 18 primary phosphines is accounted for; the model also predicts the trend of increasing stability from phenylphosphine to ...
Harriman A, Stewart B, Higham LJ
core   +5 more sources

Phosphonate–Phosphinate Rearrangement

open access: yesThe Journal of Organic Chemistry, 2015
LiTMP metalated dimethyl N-Boc-phosphoramidates derived from 1-phenylethylamine and 1,2,3,4-tetrahydronaphthalen-1-ylamine highly selectively at the CH3O group to generate short-lived oxymethyllithiums. These isomerized to diastereomeric hydroxymethylphosphonamidates (phosphate–phosphonate rearrangement).
Qian, Renzhe   +2 more
openaire   +2 more sources

Copper(I)-catalyzed asymmetric hydrophosphination of alkenyl azaarenes

open access: yesGreen Synthesis and Catalysis
Hydrophosphination of α,β-unsaturated carbonyl compounds is one of the most common methods to prepare chiral phosphines. Herein, a copper(I)-catalyzed asymmetric hydrophosphination of alkenyl azaarenes is developed by virtue of the electron-withdrawing ...
Jun-Zhao Xiao   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Stoichiometric and Catalytic Synthesis of Alkynylphosphines

open access: yesMolecules, 2012
Alkynylphosphines or their borane complexes are available either through C–P bond forming reactions or through modification of the phosphorus or the alkynyl function of various alkynyl phosphorus derivatives.
Annie-Claude Gaumont   +3 more
doaj   +1 more source

Architecture and synthesis of P,N-heterocyclic phosphine ligands

open access: yesBeilstein Journal of Organic Chemistry, 2020
Diverse P,N-phosphine ligands reported to date have performed exceptionally well as auxiliary ligands in organometallic catalysis. Phosphines bearing 2-pyridyl moieties prominently feature in literature as compared to phosphines with five-membered N ...
Wisdom A. Munzeiwa   +2 more
doaj   +1 more source

Platinum-Catalyzed Asymmetric Alkylation of Secondary Phosphines:  Enantioselective Synthesis of P-Stereogenic Phosphines

open access: yes, 2016
The chiral Pt catalyst precursor Pt((R,R)-Me-Duphos)(Ph)(Cl) mediated alkylation of racemic secondary phosphines PHR(R‘) with benzyl halides in the presence of base to give enantioenriched tertiary phosphines PR(R‘)(CH2Ar).
Corina Scriban (1989502)   +1 more
core   +1 more source

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