Phosphine, diphenyl triphenyl

DL-Phcnylalamnc,TV-(tnfluoroacetyl), 125 L Phenylalanine,TV (tnfluoroacetyl)-, 125 Phosphine, diphenyl, 45 Phosphine, triphenyl-, 81 Phosphomum, [4-(4-methoxyphenyl)-2-... 

Phenylurefbanes, 58, 10 Phosgene, 57, 46 Phosphine, diphenyl-, 56,45 Phosphine-mckcl catalyst, 58, 129 PHOSPHINE-NICKEL CATALYZED COMPLEX CROSS-COUPLING OF GRIG-NARD REAGENTS WITH ARYL AND ALKENYL HALIDES, 58, 127 Phosphine, phenyl-, bis(3-dimethylamino-piopyl)-, 55, 128 Phosphine, triphenyl-, 56, 81 Phosphomum, [ 4-(4-rne thoxy phenyl)-2-butenyl) triphenyl, iodide, 56, 81 Phosphomum, 2-octadecenyltnphenyl-, iodide, 56, 81... 

PChH , Phosphine, dimethylphenyl-iron complex, 26 61 PC, Hn, Phosphine, diphenyl-manganese complex, 26 158, 226-230 ruthenium complex, 26 264 PC 3H27, Phosphine, tributyl-iron complex, 26 61 PC,H , Phosphine, methyldiphenyl-iron complex, 26 61 PC, H Phosphine, triphenyl-cobalt complex, 26 190-197 cobalt-gold-ruthenium, 26 327... 

BCIF4I1OP2C37H3, Iridium(ll), carbonyl-chlorohydrido[tetrafluoFoborato(l - ))-bis(triphenylphosphine)-, 26 117,28 23 BClF4lrOP2C3gH33, Iridium(III), carbonyl-chloromethyl[tetrafluoroborato(l—)]-bis( triphenylphosphine)-, 26 118,28 24 BF4, Borate(l—), tetrafluoro-, molybdenum and tungsten complexes, 26 96-105 BF4AuIr3N03P7C,gH,3, Borate(l-), tetrafluoro-, tris[l,2-ethanediylbis(diphenyl-phosphine)]hexahydrido[(triphenyl-phosphine)gold]triiridium(2+) nitrate (1 1 1), 29 291... 

Formaldehyde can be polymerized cationically to high-molecular-weight poly(oxymethylene) (catalysts BF3, HCIO4, etc. cf. the polymerization of trioxane), or anionically (tributylamine, triphenyl phosphine, diphenyl zinc, etc.), or by an insertion polymerization mechanism (aluminum isopropylate). Some anionic initiators, such as dimethylamine, induce a high proportion of the Cannizzaro reaction by-product, and thus there is a sharp decrease in the polymerization rate as the initiator concentration is increased. Extensive transfer reactions are occasionally observed in the cationic polymerizations. The transfer constant = KJkp has the value of 0.5-2.0 for low-molecular-weight acetals, 0.026 for methyl formate, and 0.(X)06 for halogen derivatives. 

Die elektroehemisehe Reduktion von Triphenyl-phosphin am polarographischen Stu-fenfuR (in DMF/Tetrabutylammoniumtetrafluoroborat) liefert Butyl-diphenyl-phosphin (60% d.Th.)3. Analogreagiert Triphenyl-phosphinoxid zu Butyloxy-diphenyl-phosphin3. 

Finally, a reaction should be mentioned in which a nucleophile gives support to another reacting species without appearing in the final product. Diphenyl cyclopropenone interacts with 2,6-dimethyl phenyl isocyanide only in the presence of tri-phenylphosphine with expansion of the three-ring to the imine 344 of cyclobutene-dione-1,2229,230 Addition of the isocyanide is preceded by formation of the ketene phosphorane 343, which can be isolated in pure formss 231 it is decomposed by methanol to triphenyl phosphine and the ester 52. 

D. (ns-CYCLOPENTADIENYL) (2,3-DIMETHYL-l, 4-DIPHENYL-1,3-BUTADIENE-l, 4-DIYL)(TRIPHENYL-PHOSPHINE)COBALT ... 

Cyclohexene annelation.1 Reaction of ketone enolates with 2 equiv. of this salt results in two sequential Michael reactions to give a cyclohex-enyl(triphenyl)phosphonium bromide, which can be hydrolyzed to a cyclohex-enyl(diphenyl)phosphine oxide.1... 

The reaction can also be carried out in ether if a donor ligand is added (triphenyl-phosphine or iri-n-butylphosphine). Yields of dimer are high if the alkenyl halide carries an electron-withdrawing group. Thus (ra s-2-bromoslyrene is converted into rra . ,rr[Pg.34]

This stable ylide can be prepared on a large scale by quaternization of triphenyl-phosphine with diphenyl chloromethylphosphonate (175°, 4hrs., 77% yield). The reagent reacts with aromatic and aliphatic aldehydes at 100-110° to give the... 

Physical and mechanical characteristics have been measured and catalogued for the phenyl quinoxaline family in a related internal research project. From these data, 3,3 -Bis(4-[3-ethynyl phenoxy] phenyl)-2,2 -diphenyl-6,6 biquinoxaline (or BA-DAB-BA for short) was selected. Bis-(triphenyl phosphine) nickel II chloride was chosen as the initiator. 

PC8HM, Phosphine, dimethylphenyl-, 22 133 iridium complex, 21 97 PC 2H27, Phosphine, tributyl-, chromium complexes, 23 38 PC18H1S, Phosphine, triphenyl-, 21 78 23 38 cobalt complexes, 23 24-25 cobalt, iridium, and rhodium complexes, 22 171, 173, 174 iridium complex, 21 104 palladium complex, 22 169 palladium and platinum complexes, 21 10 ruthenium complex, 21 29 PNOC 2Hl2, Phosphinic amide, diphenyl-, lanthanoid complexes, 23 180 PNAH.2, Propionitrilc, 3,3, 3 -phosphinidy-netri-,... 

Phosphorus oxychloride, which forms stable and often insoluble complexes with Friedel-Crafts catalysts, appears not yet to have been used with success in reactions of this type. The analogous reaction of thiophosphoryl chloride has been studied in detail, but only recently 158 its use has made phenyl(thio-phosphonic) dichloride, diphenyl(thiophosphinic) chloride, and triphenyl-phosphine sulfide conveniently accessible. The dichloride is obtained in about 45% yield, together with about 33% of the monochloride, when a mixture in the molar proportions PSC13 A1C13 C6H6 = 1 2 1 is heated at 80° for 15 min the ratios 1 2 4 are most favorable for preparation of the mono-... 

Quinolizidine alcohols and amines react as nucleophiles in the expected way, yielding amides and esters. They can also take part in Mitsunobu-type chemistry, and thus conversion of equatorial hydroxyquinolizidines (157) to axial azides (158) has been accomplished by treatment with triphenyl phosphine, diethyl azodicarboxylates, and diphenyl phosphoryl azide (Equation (16)) <77TL1977>. 

C3gHj N4P2, Phosphorus(l+), p-nitrido-bis-(triphenyl)-, azide, 26 286 C3jH5gP2, Diphosphene, bis(2,4,6-tri-rert-butylphenyl)-, 27 241 C3gHj3N02P2, Phosphorus(l-f-), p-nitrido-bis(triphenyl)-, acetate, 27 296 C41H39P3, Phosphine, ]2-[(diphenyl-... 

Cj,Jl3jN02P2, Phosphorus(l-l-), t-nitrido-bis(triphenyl-, acetate, 27 296 C4 H3J 3, Phosphine, [2-[(diphenylphos-phino)methyl]-2-methyl-l,3-propane-diyl]bis(diphenyl-, rhodium complex, 27 287... 

Bisphenol A based poly(arylene ether triphenylphosphine oxide/diphenyl sulfone) copolymers were solution blended with Bisphenol A dimethacrylate vinyl ester/styrene and cured with peroxide [921]. Increasing the triphenyl phosphine oxide content in the copolymer yielded improved solubihty in the vinyl ester/styrene mixture as well as the apparent miscibility of the crosslinked blend. With 100% triphenyl phosphine oxide in the copolymer, transparent blends with the cured vinyl ester were observed. Intermediate levels of the triphenyl phosphine oxide, however, gave the best fracture toughness (controlled phase separation appeared to be desired). 

An increase of the reaction temperature from 90 to 120 °C enhances the degree of phosphonation. If the temperature was further increased to 140 °C, the yellow color of the reaction mixture turned dark, and decomposition was observed. The Pd catalyst was obviously more active in the absence of triphenyl phosphine ligands. The highest degrees of phosphonation were achieved by using diphenyl ether as a solvent, instead of o-dichlorobenzene. 

NOCbHb, Benzoyl isocyanide, chromium complex, 26 32, 34, 35 NOPC23H20, Benzamide, 2-(diphenyl-phosphino)-Al-phenyl-, 27 324 NOI bsHss) nzamide, N-[2-(diphenyl-phosphino)phenyl]-, 27 323 NObCbHb, 4-Pyridinecarboxylic acid, rhodium complex, 27 292 N02P2C3 H33, Phosphorus(l -t-), /i-nitrido-bis(triphenyl)-, acetate, 27 296 N03P2RhC25H4B, Rhodium(I), carbonyl(4-pyridinecarboxylato)bis(triisopropyl-phosphine)-, 27 292... 

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