Results 331 to 340 of about 187,817 (376)
Some of the next articles are maybe not open access.
Synthesis of primary phosphines from phosphine and arylethylenes
Russian Chemical Bulletin, 1995AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Boris A. Trofimov +6 more
openaire +3 more sources
A Highly Active Ylide-Functionalized Phosphine for Palladium-Catalyzed Aminations of Aryl Chlorides.
Angewandte Chemie, 2019Ylide-functionalized phosphine ligands (YPhos) were rationally designed to fit the requirements of Buchwald-Hartwig aminations at room temperature. This ligand class combines a strong electron-donating ability comparable to NHC ligands with high steric ...
P. Weber +6 more
semanticscholar +1 more source
ACS Catalysis, 2019
Asymmetric hydrophosphination is the most atomically economical and straightforward approach to the construction of chiral organophosphorus compounds. Good stereoselectivities have been achieved in asymmetric hydrophosphination of an electron-deficient C═
Zhiwu Lu +5 more
semanticscholar +1 more source
Asymmetric hydrophosphination is the most atomically economical and straightforward approach to the construction of chiral organophosphorus compounds. Good stereoselectivities have been achieved in asymmetric hydrophosphination of an electron-deficient C═
Zhiwu Lu +5 more
semanticscholar +1 more source
Angewandte Chemie, 2019
Auto-tandem catalysis (ATC), in which a single catalyst promotes two or more mechanistically different reactions in a cascade pattern, provides a powerful strategy to prepare complex products from simple starting materials.
Peng-Qiao Chen +5 more
semanticscholar +1 more source
Auto-tandem catalysis (ATC), in which a single catalyst promotes two or more mechanistically different reactions in a cascade pattern, provides a powerful strategy to prepare complex products from simple starting materials.
Peng-Qiao Chen +5 more
semanticscholar +1 more source
2010
This chapter gives an account of the newer developments on the synthesis and reactivity of phosphine chalcogenides, mainly oxides and sulfides. A series of new synthetic methods for phosphine oxides is discussed, followed by preparations utilizing simple P-reagents such as P(iii)- and P(v)-chlorides, and >P(O)H species.
openaire +1 more source
This chapter gives an account of the newer developments on the synthesis and reactivity of phosphine chalcogenides, mainly oxides and sulfides. A series of new synthetic methods for phosphine oxides is discussed, followed by preparations utilizing simple P-reagents such as P(iii)- and P(v)-chlorides, and >P(O)H species.
openaire +1 more source
(Ferrocenylmethyl)phosphine, an air-stable primary phosphine
Journal of the Chemical Society, Dalton Transactions, 1999Removal of formaldehyde from the readily prepared ferrocenyl (R) hydroxymethylphosphine RCH2P(CH2OH)2 with one mole equivalent of Na2S2O5 gave the completely air-stable primary phosphine RCH2PH2 as a crystalline, sublimable solid. With [Mo(CO)6] both mono-, [Mo(CO)5(RCH2PH2)], and di-substituted, [Mo(CO)4(RCH2PH2)2], products are readily formed, and ...
William Henderson +4 more
openaire +2 more sources
Angewandte Chemie, 2019
Ambiphilic molecules, which contain a Lewis base and Lewis acid, are of great interest based on their unique ability to activate small molecules. Phosphine boronates are one class of these substrates that have interesting catalytic activity.
Shawn E. Wright +6 more
semanticscholar +1 more source
Ambiphilic molecules, which contain a Lewis base and Lewis acid, are of great interest based on their unique ability to activate small molecules. Phosphine boronates are one class of these substrates that have interesting catalytic activity.
Shawn E. Wright +6 more
semanticscholar +1 more source
147-nm Photolysis of phosphine and phosphine-d3
The Journal of Physical Chemistry, 1981The 147-nm photodecompositions of PH/sub 3/ and PD/sub 3/ result in the formation of H/sub 2/ (D/sub 2/) and P/sub 2/H/sub 4/ (P/sub 2/D/sub 4/) in the gas phase and a solid deposit which is probably a mixture of phosphorous and polymeric phosphorous hydrides (PH)/sub x/ and (PD)/sub x/.
J. Blazejowski, F. W. Lampe
openaire +2 more sources
The basicity of phosphines [PDF]
Canadian Journal of Chemistry, 1982 The basicities of the triarylphosphines P(4-XC6H4)3 (X = Cl, F, H, CH3, CH3O, (CH3)2N), P(3-CH3C6H4)3, and P(2-CH3C6H7)3 as well as the trialkylphosphines P(t-Bu)3 and PCy3 have been measured by the nitromethane titration method. The range of basicity available by aryl substitution is very large, being pKa = 8.65 for X = (CH3)2N to 1.03 for X = Cl ...
Ram G. Goel, Tim Allman
openaire +1 more source
Angewandte Chemie, 2019
We report a phosphine-catalyzed ring opening of electron-deficient alkylidenecyclopropanes (ACPs) to generate allylic phosphonium zwitterions that resemble the well-studied phosphine-allene adducts but exhibit distinct properties.
Xin He +6 more
semanticscholar +1 more source
We report a phosphine-catalyzed ring opening of electron-deficient alkylidenecyclopropanes (ACPs) to generate allylic phosphonium zwitterions that resemble the well-studied phosphine-allene adducts but exhibit distinct properties.
Xin He +6 more
semanticscholar +1 more source