Results 21 to 30 of about 51,028 (331)

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

open access: yesNature 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   +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

open access: yesOrganics, 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   +5 more
doaj   +1 more source

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

New cobalt(I) complexes derived from dicarbonyltricyanocobaltate(I) [PDF]

open access: yes, 1971
The preparation and characterization of several series of mixed ligand cobalt(I) complexes of the types [Co(CN)_2(CO)_2(PR_3)]–, [Co(CN)_2(CO)(PR_3)_2]–, and [Co(CN)(CO)_2(PR_3)_2], prepared by the reactions of tertiary phosphines (PR_3) with [Co(CN)_3 ...
Bercaw, John   +2 more
core   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Intramolecular Phosphine-Promoted Knoevenagel Based Redox-Reaction

open access: yesMolecules, 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   +3 more
doaj   +1 more source

Reactions of HNO with Metal Porphyrins: Underscoring the Biological Relevance of HNO [PDF]

open access: yes, 2014
Azanone (1 HNO, nitroxyl) shows interesting yet poorly understood chemical and biological effects. HNO has some overlapping properties with nitric oxide (NO), sharing its biological reactivity toward heme proteins, thiols, and oxygen.
Bikiel, Damian Ezequiel   +4 more
core   +1 more source

Sensing Organophosphorus Compounds with SWCNT Films

open access: yesSensors, 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   +2 more
doaj   +1 more source

Phosphine Functionalization of GaAs(111)A Surfaces [PDF]

open access: yes, 2008
Phosphorus-functionalized GaAs surfaces have been prepared by exposure of Cl-terminated GaAs(111)A surfaces to triethylphosphine (PEt3) or trichlorophosphine (PCl3), or by the direct functionalization of the native-oxide terminated GaAs(111)A surface ...
Biteen, Julie S.   +5 more
core   +1 more source

Preparation of phosphines through C–P bond formation

open access: yesBeilstein Journal of Organic Chemistry, 2014
Phosphines are an important class of ligands in the field of metal-catalysis. This has spurred the development of new routes toward functionalized phosphines.
Iris Wauters   +2 more
doaj   +1 more source

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