Phosphine, tris 4- phenyl

Another class of hydrocarbon binders used in propints are the carboxy-terminated polybutadiene polymers which are cross-linked with either tris[l-(2-methyl)aziridinyl] phosphine oxide (MAPO) or combinations with phenyl bis [l -(2-methyl)aziridinyl] phosphine oxide (Phenyl MAPO). Phenyl MAPO is a difunctional counterpart of MAPO which makes possible chain extension of polymers with two carboxylic acid groups. A typical propint formulation with ballistic properties is in Table 11 (Ref 83) Another class of composites includes those using hydroxy-terminated polybutadienes cross-linked with toluene diisocyanate as binders. The following simplified equations illustrate typical reactions involved in binder formation... 

Phosphine, tris[(diphenylphosphino)ethylj-, 2, 995 Phosphine, tris(2-(diphenylphosphino)phenyl)-, 2, 995 Phosphine, tris(p-hydroxyphenyl)-photography... 

A novel route to indoles and quinolines has been developed by sequential Wiltig and Heck reactions <96CC2253>. Thus, treatment of o-bromo- or iodo-lV-lrifluoroaceiylanilines (86) with a stabilized phosphorane affords the corresponding enamines 87 as a mixture of isomers. Cyclization to 88 is effected by heating with palladium acetate, tri phenyl phosphine, and bu.se. 

Dimerization(46,47) with a palladium acetate/tertiary phosphine complex (di-ace tate-bis--[ tri-phenyl phosphine] palladium) in the absence of air gives primarily the desired linear dimer with smaller amount of branched, cyclic, and heavy product (Equation 13.). The reaction product is a complex mixture of cis and trans geometric isomers which makes analysis difficult. In order to simplify this problem, the product analysis is made after hydrogenation over 5% palladium on carbon. 

The complexes are soluble in aromatic solvents and in THF. The tri-p-tolyl-phosphine complex has limited solubility in ether, and the tri-phenyl phosphine complex is insoluble in diethyl ether. Both complexes are insoluble in hexane and related solvents and decompose in chlorinated solvents. Limited solubility is achieved inA jV-dimethylformamide, but moderate decomposition occurs. 

C45H4j09PS3-3Na, Benzenesulfonic acid, 4,4, 4"-[phosphinidynetris(4,1 -phenylene-3,l-propanediyl)]tris-, trisodium salt, [158612-17-0], 32 32-34 C45H45P, Phosphine, tris[4-(3-phenyl-... 

The platinum complex 171 easily reacts with excess of phenylacetylene with the formation of a 1 1 mixture of 1,4-digermacyclohexa-2,5-diene and (//-ace ty I ene)bis(tri phenyl phosphine (platinum in quantitative yields (Equation 4)... 

Tetraki s(tri phenyl phosphine) palladium was prepared by treating palladium chloride, available from Matthey Bishop, Inc., with hydrazine hydrate 1n the presence of triphenyl phosphine according to an Inorganic Syntheses procedure. The submitters used a freshly prepared, shiny yellow, crystalline sample of the palladium complex. On standing for an extended period of time (> a few weeks), its color gradually darkens. Even such samples are effective in many palladium-catalyzed cross-coupling reactions, but have not been tested in this reaction. Tetraki s( tri phenyl phosphine) palladium is also available from Aldrich Chemical Company. 

Bromocomplexes of plutonium are limited in number tri- and tetravalent complexes with organic cations, namely C(C6 5)3P l3 PuBrg(c) (70) and [(C2H5)4N]2 PuBr5(c) (71) have been reported. Also, adducts of the type PuBr. 2L (with L = hexamethylphosphora-mide and tri phenyl phosphine oxide) are known (72.). No thermodynamic information are available on these species. More recently, however, the compound Cs2PuBr5(c) has been prepared (63) and its enthalpy of solution in 1 M HCl was measured as - 75.3 + 0.21 kJ. mol l. This measurement leads to a value of AHS(Cs2PuBr, c) =... 

Intramolecular aromatic substitution in transition metal complexes is an area of research where there is considerable current interest, and tri(phenyl-ds)-phosphine is a ligand often used in such investigations. This phosphine can be prepared from phenyl-ds-magnesium bromide by its reaction with PCI3 in diethylether, as described below. 

H2BF4l,IrC4 Hu, Iridium(III), (1,2-diiodo-benzene)dihydridobis(triphenylphos-phine). tetrafIuoroborate l -), 26 125 H2BF4lrO P C ,H.i4, Iridium(III), diaquadi-hydridobis(triphenylphosphine)-, tetrafluoroborate( I -), 26 124 H2BF4lr02P C4 H42, Iridium(III), bis(ace-tone)dihydridobis(tri phenyl phosphine)-, tetrafluoroborate( 1 -),... 

Two new phosphines, tris[p-(10-phenyldecyl)phenyl]phosphine and 2,2 -bis di [p-(10-phenyldecyl)phenylphosphinomethyl]-l,T-biphenyl were successfully synthesized and sulfonated in H2S04. The resulting water soluble surface active phosphines were applied to the rhodium catalyzed hydroformylation of higher alkenes. It is found that these two ligands are not only excellent for octene hydroformylation, but catalyze tetradecene hydroformylation under biphasic conditions as well. Rates and selectivities are superior to TPPTS-modified rhodium catalysts under the same reaction conditions [68]. 

Tri phenyl phosphine/potassium tert-hutoxide Wittig synthesis... 

Above 100°C in an inert solvent this latter compound produces a very reactive vinylidene phospho-rane together with tri-phenyl phosphine oxide. The phosphorane is converted into a phosphonium salt with acid. 

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