Nickel tri

Nickel, tris(l, 10-phenanthroline) racemization, 1,24. 466 solid state, 1, 467 structure, 1,64 Nickel complexes, 5,1-300 acetylacetone alcoholysis, 2, 380 pyridine complexes, 2, 386 solvolysis, 2,379 structure, 2,388 amidines... 

Ni0s,C 4H , Osmium, nonacarbonyl(T -cyclopentadienyl)tri-p-hydrido-nickel-tri-, 26 362... 

Tris (triphenylphosphine) nickel, tris (tri-p-tolylphosphine) nickel, and bis (1,3-diphenylphosphinepropane) nickel proved to be good catalysts, the first being slightly more effective. The tricyclohexylphosphine complex was a very poor catalyst, and bis (cyclooctadiene) nickel did not catalyze cyanation. Cyanation of several substituted aromatic halides in the presence of Ni[P(C6H5)3]3 prepared by reducing dichlorobis (triphenylphosphine) nickel (II) 2 with a powdered manganese iron (80 20) alloy (Reaction 3) is reported in Table II. 

Using the nickel-tri(o-phenylphenyl)phosphite catalyst, the composition of the reaction product is markedly dependent on the extent of conversion of the butadiene. With a conversion of less than 85°, 1,2-divinylcyclo-butane (DVCB) is obtained in a yield of up to 40° At higher conversions DVCB catalytically rearranges to COD and VCH ( Table VI)... 

Fig. 2. The Cope rearrangement of DVCB (84). I, Thermal rearrangement at 80°C II, catalytic rearrangement with nickel-tri(o-phenylphenyl)phosphite (0.2 M solution), 24° C.

Insight into the stereochemistry of the dimerization process is provided by terminating the reaction of cis- and frawj-piperylene with a nickel-tri(o-phenylphenyl)phosphite catalyst after only 10% of the 1,3-diene has been consumed. The product from m-piperylene is the DVCB derivative (LII), and from fram-piperylene compounds (LIII) and (LIV) (86, 87). 

In Table XIII we have summarized the results obtained by codimerization of various substituted 1,3-dienes with butadiene. In all cases the highest yields were obtained using the nickel-tri(o-phenylphenyl)phosphite catalyst. 

DEOXIMATION Bispyridinesilver permanganate. Raney nickel. Tri-p.-carbonylhexa-carbonyldiiron. 

Some complexes dissociate fully in solution (e.g., 7r-allyl nickel tri-fluoroacetate) whence [63] Rp cc [C2][M]. Donor solvents (triphenyl-phosphite, nitrobenzene) can also coordinate with the metal and influence catalyst dissociation with effects on rate and polymer molecular weight the structure of the polymer may also be affected [173]. 

EPOXIDES Alumina. r-Butyldimethyl-iodosilane. n-Butyllithium-Magnesium bromide. Cyclohexylisopropylamino-magnesium bromide. Dialkylaluminum amides. Iodotrimethylsilane. Lithium l-r ,< -dimethyldibenzylamide. Nafion-H. Organoaluminum compounds. Pyri-dinium chloride. Raney nickel. Tri-fluoroacetyl chloride. Trimethylsilyl-acetonitrile. Tris(phenylseleno)borane. Zinc iodide. 

When bis(cycloocta-l,5-diene)nickel/tris(2-phenylphenyl)phosphite (1 1) was used as the catalyst a [3 -f 2] cycloaddition with cleavage of the three-membered ring was observed. However, when l-methylene-2-trimethylsilylcyclopropane was reacted with l-phenylpyrrole-2,5-dione, traces of a product (9%) that derived from a [2 -h 2] addition were isolated. 

HgIRu3C 5H, Ruthenium, nonacar-bonyl-(3,3-dimethyl-l-butynyl)(iodo-mercury)-fn flngu/o-tri-, 26 330 0,NCrFeP2C4sHj, Chromate(l-), hydridononacarbonyliron-, p-nitrido-bis(tri-phenylphosphorus)(l+), 26 338 0,Ni0s3C,4Hg, Osmium, nonacarbonyl(Ti -cyclopentadienyl)tri-p-hydrido-nickel-tri-, 26 362... 

Nickel, tris( 1,10-phenanthroline)-racemization, 24,466 solid state, 467 structure, 64 Nickel(I) complexes magnetic properties, 274 Nickel(II) complexes, 470 allogonism, 207 equilibrium constants solvent effect, 516 isomerism, 184 liquid-liquid extraction, 544 magnetic properties, 274 5-mcrcaptoamine alkydation, 417 photoreactivity, 407... 

HYDROFORMYLATION Hydtidocarbonyltris(triphenylphosphine)rhodium(I). HYDROGENATION, CATALYSTS Chlorohydridotris(triphenylphosphine)ruthenium(II). Dichlorotris(triphenylphosphine)ruthenium(Il). Magnesium oxide. Raney nickel. Tris dimethylphenylphosphino)norbornadicncrhodium(I) hexafluorophosphate. Urushi-barta catalysts. 

Tris (tridecyi) phosphite stabiiizer, heat polyoiefins Dimethyi succinate 2,2,6,6-Tetramethylpiperidin-4-yi acrylate/methyi methacrylate copolymer 2,2 -Thiobis (4-t-octylphenolato)-n-butylamine nickel Tris (nonyiphenyi) phosphite stabiiizer, heat PP... 

H2oFeMo30ioS4, Molybdenum, decaaquatetra-sulfido-iron-tri-, ion in solution, 33 152 H2oMo3NiOioS4, Molybdenum, decaaquatetra-sulfido-nickel-tri-, ion in solution, 33 156 H2oNiOioS4W3, Tungsten, decaaquatetrasulfido-nickel-tri-, ion in solution, 33 161 H24lnMo30i2S4, Molybdenum, dodecaaquate-trasulfido-indium-tri-, ion in solution, 33 158... 

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