Results 271 to 280 of about 186,275 (344)
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Organoplumbyl Phosphines and Phosphine Oxides
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
P. J. Guiry, P. J. McCormack
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Dioxaphosphabicyclooctanes: small caged phosphines from tris(hydroxymethyl)phosphine
Dalton Transactions, 2023The synthesis and coordination chemistry of sterically small caged phosphines, and their applications as ligands in homogeneous catalysis.
James D. Nobbs +8 more
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Tertiary Amine-Mediated Reductions of Phosphine Oxides to Phosphines
Organic Letters, 2023The 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 +4 more
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Journal of the American Chemical Society, 2019
The development of transition metal-catalyzed methods for the synthesis of P-chiral phosphine derivatives pose con-siderable challenge. Herein we present a direct Pd/Xiao-Phos-catalyzed cross-coupling reaction of easily accessible sec-ondary phosphine ...
Q. Dai +3 more
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The development of transition metal-catalyzed methods for the synthesis of P-chiral phosphine derivatives pose con-siderable challenge. Herein we present a direct Pd/Xiao-Phos-catalyzed cross-coupling reaction of easily accessible sec-ondary phosphine ...
Q. Dai +3 more
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Enantioselective Phosphine Organocatalysis
Synlett, 2009The broad potential synthetic usefulness of phosphine-promoted reactions has stimulated many recent investigations on enantioselective variants of known reactions of this family, as well as the search for new, specifically designed, chiral phosphorus catalysts.
Marinetti, A., Voituriez, A.
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Reduction of phosphine oxides to phosphines
Tetrahedron Letters, 2019Abstract 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 +2 more
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Pesticide Biochemistry and Physiology, 2020
Resistance to phosphine fumigation has been frequently reported in insect pests of stored products and remains one of the obstacles in controlling these pests, including Tribolium castaneum. In this study, six field populations of T.
Kangxu Wang +4 more
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Resistance to phosphine fumigation has been frequently reported in insect pests of stored products and remains one of the obstacles in controlling these pests, including Tribolium castaneum. In this study, six field populations of T.
Kangxu Wang +4 more
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Phosphine resistance in saw-toothed grain beetle, Oryzaephilus surinamensis in the United States
, 2020Phosphine (PH3) fumigation resulting in sub-lethal exposure has led to the development of phosphine resistance in many stored-product insect species worldwide and is a major challenge to the continued effective use of phosphine.
S. Gautam +4 more
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Phosphine-Stabilized Digermavinylidene
Journal of the American Chemical Society, 2019An intramolecular germylene-phosphine Lewis pair (1) was reacted with germanium dichloride to give in 92% yield a phosphine adduct of a chloro substituted germyl-germylene (2). After reduction of this dichloride with strong reductants like the Mg(I) reagent {(MesNacnac)Mg}2 (72% yield) or Na (52% yield) a phosphine stabilized digermavinylidene (3) was ...
Kilian M. Krebs +5 more
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Angewandte Chemie, 2019
The dearomatization of 3-nitroindoles through a chiral-phosphine-mediated [3+2] annulation reaction is described. This method makes use of readily available 3-nitroindoles as an aromatic feedstock and rapidly delivers a wide range of cyclopentaindoline ...
Kaizhi Li +3 more
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The dearomatization of 3-nitroindoles through a chiral-phosphine-mediated [3+2] annulation reaction is described. This method makes use of readily available 3-nitroindoles as an aromatic feedstock and rapidly delivers a wide range of cyclopentaindoline ...
Kaizhi Li +3 more
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