Phosphine ethylenebis

Phosphine, (2-bromophenyl)dichloro-, 2,991 Phosphine, (w-chloroalkyl)dichloro-, 2, 991 Phosphine, chlorodimethyl-, 2, 991 Phosphine, chloro(dimethylamino)-, 2, 991 Phosphine, chlorodiphenyl-, 2, 990 Phosphine, cyclohexyl(o-anisyl)methyl-rhodium complexes asymmetric hydrogenation, 6, 251 Phosphine, [(dialkylphosphino)alkyl]diphenyl-, 2, 994 Phosphine, dichloromethyl-, 2, 991 Phosphine, dichlorophenyl-, 2, 990 Phosphine, diethylphenyl-, 2, 992 Phosphine, dimethyl-, 2,992 Phosphine, dimethylphenyl-, 2,992 Phosphine, diphenyl-, 2, 992 Phosphine, ethyldiphenyl-, 2, 992 Phosphine, ethylenebis(diethyl-, 2, 993 Phosphine, ethylenebis(diphenyl-, 2,993 Phosphine, ethylenebis(phenyl-, 2,992 Phosphine, ethylidynetris[methylene(diphenyl-, 2,994 Phosphine, [(ethylphenylphosphino)hexyl]diphenyl-, 2, 994... 

P2C6H1J, Phosphine, ethylenebis(dimethyl-hazards in preparation of, 23 199 P2C23H22, Phosphine, methylenebis(diphe-nylpalladium and rhodium complexes, 21 47-49... 

P2C2HI6, Phosphine, 1,2-ethanediyl-bis(dimethyl-, iridium complex, 21 100 PjCtHu, Phosphine, ethylenebis(dimethyl-, hazards in preparation of, 23 199 P hHb, Phosphine, methylenebis(diphenyl-, palladium and rhodium complexes, 21 47-49 P kHk, Phosphine, 1,2-ethanediyl-bis(diphenyl-, iron complexes, 21 91-94 molybdenum and tungsten complexes, 23 10-13... 

Under no conditions has it been found possible to replace more than one carbonyl group of acetylcobalt tetracarbonyl by triphenylphosphine. Even the chelating bis(phosphine), ethylenebis(diphenylphosphine) does not form stable chelated complexes with acetylcobalt tetracarbonyl (7). Phosphite esters, on the other hand, will replace two coordinated carbonyl groups at about 80° C, and three can be replaced by another method (8). 

Nickel, dichloro [ethylenebis(dimethyl-phosphine)], 58, 133 Nickel, dichloro[ethj lenebis(diphenyl-phosphine)], 58,133 [Ni (-)-diop Cl2 ], (-)-diop=2,3-0-iso-propylidene-2,3-dihydroxy-l,4-bis(di-phenylphosphino)butane, 58, 133 Nickel, dichloro [ trimethylenebis(diphenyl-phosphine)], 58,133 NITRILES, alkylation of, 55, 91 NITRILES FROM KETONES, 58, 101 NITRILES, a vinyl, 55, 99, 101 p-Nitrobenzenesulfonyl cyanide, 57, 89 p-Nitrobenzyl alcohol, 57, 72 p-NITROBENZYL FLUORIDE, 57, 72 Nitro compounds, 56, 36 Nitronates, 56, 36... 

The reaction of hydrosilylmanganese complexes with ethylenebis(phos-phine) platinum or tetrakis(phosphine)platinum offers a convenient method for the synthesis of silylene-bridged heterometallic complexes [Eq. (18)].45... 

Ethylenebis( e/ /-phosphine)palladium(0) complexes are air-sensitive but can be kept for months, when dry and pure, under inert gas in a refrigerator. They are soluble in organic solvents like benzene and toluene palladium may precipitate from the solutions, especially that of the triphenylphosphine complex, unless they are saturated with ethylene. Therefore, the complexes may be crystallized from toluene-diethyl ether mixtures saturated with ethylene. 

The ethylenebis(tricyclohexylphosphine)palladium(0) and ethylenebis(tri-u-tolyl phosphite)palladium(0) complexes dissolve in diethyl ether when argon is passed through the suspension. Upon evaporation of these solutions in vacuo, the corresponding bis(tert-phosphine)palladium(0) complexes are obtained. ... 

The preparation of ethylenebis(dimethylphosphine) has been described by metallation of phosphine with sodium, followed by methylation of the resulting sodium phosphide with iodomethane. Two further metallation-methylation sequences using sodamide and iodomethane produce sodium dimethylphosphide, which is treated with 1,2-dichloroethane in liquid ammonia, to give the diphosphine.2 Other procedures involve heating tetramethyldiphosphane with ethylene,3 or tetramethyldiphosphane disulfide with ethylene, both... 

The present procedure starts with tetramethyldiphosphane disulfide which is desulfurized with iron powder to tetramethyldiphosphane. The diphosphane is cleaved with sodium in liquid ammonia, followed by addition of 1,2-dichloroethane, to give ethylenebis-(dimethylphosphine). This procedure avoids the use of phosphine (PH3) and eliminates the need for high-pressure apparatus. Sections A and B for preparing tetramethyldiphosphane and the disulfide have been reported5,6 and are reproduced with some modifications. The total working time for Secs. A, B, and C is 3 days. 

Bis(diphenylphosphino)ethane]nickel(ll) chloride cancer suspect agent Nickel, dichloro[ethylenebis[diphenylphosphine]]- (8) Nickel, dichloro[1,2-ethanediylbis[diphenylphosphine]-P.P ]- (SP-4-2)- (9) (14647-23-5) Diphenylphosphine pyrophoric Phosphine, diphenyl- (8,9) (829-85-6) 1,4-Diazabicyclo[2.2.2]octane (DABCO) (8,9) (280-57-9)... 

Barium metaborate Bis (P-chloroethyl) vinyl phosphonate Calcium sulfate dihydrate Chlorinated n-paraffins (C6-C18) Dibromostyrene Dimelamine phosphate Dimethyl hydrogen phosphite Ethylenebis dibromonorbornane dicarboximide Ethylene diamine phosphate Isobutylbis (hydroxypropyl) phosphine oxide Magnesium carbonate Magnesium hydroxide Melamine cyanurate... 

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