29972-74-5Relevant articles and documents
Reactive intermediates: A transient electrophilic phosphinidene caught in the act
Jansen, Helen,Samuels, Michiel C.,Couzijn, Erik P.A.,Slootweg, J. Chris,Ehlers, Andreas W.,Chen, Peter,Lammertsma, Koop
, p. 1454 - 1458 (2010)
Trapped! Transient electrophilic phosphinidenes [R-P=W(CO)5] have emerged as versatile intermediates that are highly valuable in the synthesis of a plethora of organophosphorus compounds, nevertheless their existence has never been unequivocall
The Formation of P-C Bonds Utilizing Organozinc Reagents for the Synthesis of Aryl- A nd Heteroaryl-Dichlorophosphines
Kirst, Christin,Tietze, Jonathan,Ebeling, Marian,Horndasch, Lukas,Karaghiosoff, Konstantin
, p. 17337 - 17343 (2021/11/18)
Aryl- A nd heteroaryl-dichlorophosphines are mildly and selectively made in a one-pot synthesis in moderate to good yields starting from the respective aryl bromides or five-membered heterocycles, following lithiation with nBuLi, transmetalation with ZnCl
Metal control of non-polar binding shape selectivity
Wang, Fen,Schwabacher, Alan W.
, p. 7641 - 7644 (2007/10/03)
Ligand 1 forms a hydrophobic cavity upon binding to metals, the shape of which depends on the metal. A reversal in binding preference for naphthalene or biphenyl groups is found when the metal is changed from zinc to copper, with a selectivity change of 260 fold.
Tuning of Binding Selectivity: Metal Control of Organic Guest Binding and Allosteric Perturbation of Fluorescent Metal Sensor
Wang, Fen,Schwabacher, Alan W.
, p. 8922 - 8928 (2007/10/03)
Ligand 1, bearing two ethylenediamine groups, was designed to form a Hydrophobic cavity upon binding to metals. The shape of its nonpolar cavity depends on the metal: a reversal in binding preference for naphthalene or biphenyl groups is found when the metal is changed from zinc to copper, with a selectivity change of 260-fold. In the presence of dansylated amino acids, the new ligand constitutes a fluorescent sensor for zinc ion. Variations are seen in affinity for dansylamino acid with minor structural changes, and organic selectivity changes with complexes of variant metals. These findings suggest that sensor tuning of affinity and selectivity for metal is possible by choice of simple organic guest and for organic guest by choice of metal.
The kinetics and mechanism of the reaction of tricoordinate phosphorus compounds with sulfenate esters
Hall, C. Dennis,Tweedy, Bruce R.,Lowther, Nicholas
, p. 341 - 358 (2007/10/03)
The kinetics and mechanism of the reaction of tricoordinate phosphorus compounds, ArnP(OCH2CF3)3-n with arylsulfenate esters, ArSOCH2CF3, are reported. Product analysis, kinetic order, activation parameters, Hammett data and solvent effects are the criteria used to elucidate the two step mechanism involving arylthiophosphoranes as intermediates.
Effect of para Substituents on Decomposition Rates of 2-(N,N'-Dimethylamino)ethyl Phenyl Phenylphosphonates
Manninen, P. Antti
, p. 635 - 640 (2007/10/02)
Spontaneous decomposition of nineteen of the title phosphonates to their 1,1,4,4-tetramethylpiperazinium salts was followed in 50 percent aqueous ethanol at different temperatures.The effect of substituents of the phenyl group on reaction rates was about
SYNTHESIS OF PHOSPHONIC DICHLORIDES AND CORRELATION OF THEIR P-31 CHEMICAL SHIFTS
Grabiak, Raymond C.,Miles, James A.,Schwenzer, Gretchen M.
, p. 197 - 202 (2007/10/02)
Various mono-substituted diethyl arylphosphonates were prepared in good yield by treatment of aryl bromides or iodides with triethyl phosphite in the presence of NiCl2 or alternatively, addition of the aryl grignard reagent to diethyl phosphorochloridate.
