Results 231 to 240 of about 19,048 (288)

Tertiary Amine-Mediated Reductions of Phosphine Oxides to Phosphines

Organic Letters, 2023
The reduction of phosphine oxides without the use of highly reactive reductants represents a safer and more sustainable solution for recycling of organophosphorus compounds. Herein, we disclose an N,N,N',N'-tetramethylethylenediamine (TMEDA)-mediated reduction via an unusual intermolecular hydride transfer. Mechanistic studies suggest that TMEDA serves
Keshu Yin, Mingjie Wei, Zhenguo Wang, Wenjun Luo, Le Li   +4 more
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Reduction of phosphine oxides to phosphines

Tetrahedron Letters, 2019
Abstract The digest is devoted to the most widespread reducing agents which are used for the reduction of tertiary and secondary phosphine oxides, phospholene oxides, phospholane oxides, phosphonates, phosphinates, α- and β-hydroxy and thiomethyl phosphine oxides, α-aminophosphine oxides. Stereoselectivity of reactions is described.
Evgeniya Podyacheva, Ekaterina Kuchuk, Denis Chusov   +2 more
openaire   +1 more source

Organoplumbyl Phosphines and Phosphine Oxides

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
P. J. Guiry, P. J. McCormack
openaire   +1 more source

Reduction of secondary and tertiary phosphine oxides to phosphines

Chemical Society Reviews, 2015
In this review, we summarise all the methods of phosphine oxide reduction and discuss their mechanistic aspects.
Hérault, Damien, Nguyen, Duc Hanh, Nuel, Didier, Buono, Gérard   +3 more
openaire   +3 more sources

Phosphine oxide-based tricarbonylrhenium(i) complexes from phosphine/phosphine oxide and dihydroxybenzoquinones

Dalton Transactions, 2018
Visible light absorbing PO donor-based organometallic complexes were assembled from PR3/OPR3, dihydroxybenzoquinone and Re2(CO)10.
Ramar Arumugam, Bhaskaran Shankar, Ramasamy Shanmugam, T. Arumuganathan, Malaichamy Sathiyendiran   +4 more
openaire   +2 more sources

Phosphine oxide surfactants revisited

Advances in Colloid and Interface Science, 2016
This review summarizes everything we currently know about the nonionic surfactants alkyl dimethyl (C(n)DMPO) and alkyl diethyl (C(n)DEPO) phosphine oxide (PO surfactants). The review starts with the synthesis and the general properties (Section 2) of these compounds and continues with their interfacial properties (Section 3) such as surface tension ...
Cosima, Stubenrauch, Natalie, Preisig, Robert G, Laughlin   +2 more
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Synthesis and oxidation of phosphine cations

Dalton Trans., 2017
Cationic phosphines of the form [(L)PPh2]+ are prepared from Ph2PCl and carbenes (L), including a chiral bis(oxazoline)-based carbene, a cyclic(alkyl)(amino) carbene, and a 1,2,3-triazolium-derived carbene. A related dication was prepared from PhPCl2 and a bis-carbene. The monocations, but not the dication, can be oxidized with XeF2.
Meera Mehta, Timothy C. Johnstone, Jolie Lam, Bidraha Bagh, André Hermannsdorfer, Matthias Driess, Douglas W. Stephan   +6 more
openaire   +4 more sources

Mild Reduction of Phosphine Oxides with Phosphites To Access Phosphines

Angewandte Chemie International Edition, 2017
AbstractA new method for the iodine‐catalyzed reduction of phosphine oxides with phosphites at room temperature is reported. The mild reaction conditions, scalability, and simple purification requirements render it a method of choice for the large‐scale production and facile regeneration of a variety of phosphines. Mechanistic studies, supported by DFT
Peng Li, Raphael Wischert, Pascal Métivier   +2 more
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Reduction of phosphine oxides to phosphines with the InBr3/TMDS system

Tetrahedron, 2012
An efficient method for the reduction of phosphine oxide derivatives into their corresponding phosphines is described. The system InBr3/TMDS allows the reduction of different secondary and tertiary phosphine oxides as well as aliphatic and aromatic phosphine oxides.
Pehlivan, Leyla, Métay, Estelle, Delbrayelle, Dominique, Mignani, Gérard, Lemaire, Marc   +4 more
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Coordination chemistry with phosphine and phosphine oxide-substituted hydroxyferrocenes

Dalton Transactions, 2010
New unsymmetrical hydroxyferrocenes were synthesised from dibromoferrocene. The oxygen heteroatom was introduced via lithiation and quenching with bis-trimethylsilylperoxide followed by hydrolysis to unmask the hydroxyl functionality. The coordination chemistry of 1'-(diphenylphosphino)-1-hydroxyferrocene 2 was explored with palladium and rhodium ...
Atkinson, RCJ, Gibson, VC, Long, NJ, White, AJP   +3 more
openaire   +3 more sources