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Phosphines tricyclohexyl-phosphine

Since Pd-phosphine complexes normally demonstrate an optimum phosphine Pd ratio, an attempt was made to determine the optimal tricyclohexyl phosphine Pd ratio at this stage. (See Table 2.) However, under these conditions, any rate optimum is barely detectable although there appeared to be selectivity optimum. Large amounts of phosphine were deleterious to both selectivity and rate. There was little change in the levels of reduction to pinacolone as the ratio was altered. [Pg.388]

Table 2. Optimization of Tricyclohexyl Phosphine Level in Screening Reactions... Table 2. Optimization of Tricyclohexyl Phosphine Level in Screening Reactions...
Conditions 33.0 mL (0.251 mol) mL (0.766 mol) MeOH, 120°C, pressure as indicated, includes tricyclohexyl phosphine contained in the (cy-hex3P)2PdCl2 catalyst. [Pg.390]

C18H18, Benzene, l,3-butadiene-l,4-diyl-bis-cobalt complex, 26 195 C,8H33P, Phosphine, tricyclohexyl iron complex, 26 61 nickel complexes, 26 205, 206 C H 7OP, Benzenemethanol, 2-(diphenyl-phosphino)-... [Pg.416]

ONNiPC22H4U, Nickel(II), [2-methylpro-panamidato(2 - )-C, /Y](tricyclohexyl-phosphine)-, 26 205... [Pg.428]

Figure 1.6 Metathesis Catalysts (22) Phenylmethylene-bis-(tricyclohexyl-phosphine) ruthenium dichloride (I), (IMesH2)(PCy3)(Cl)2Ru=CHPh (III)... Figure 1.6 Metathesis Catalysts (22) Phenylmethylene-bis-(tricyclohexyl-phosphine) ruthenium dichloride (I), (IMesH2)(PCy3)(Cl)2Ru=CHPh (III)...
With regard to catalytic activity, a catalytic system comprising palladium(II) acetylacetonate or palladium(II) acetate, dimeth-ylanilinium tetrakis(pentafluorophenylborate), and tricyclohexyl-phosphine is more effective than a catalyst system comprising (allylPdCl)2, borate, and phosphine. It is believed that the acetylacetonate group is easily released from palladium to form a large space around the palladium, so a large norbornene monomer can access the site easily (9). [Pg.50]

PFeOC24H21, Ferrocene, [(diphenylphosphino) acetyl]-, [125798-01-8], 31 141 PGaClgH36, Gallium, trihydro(tricyclohexyl-phosphine)-, (T-4)-, [141727-22-2], 31 79 PI07ReC7H, Rhenium, tetracarbonyliodo (trimethyl phosphite-P)-, (OC-6-33)-, [134770-89-1], 31 249 PN02C24H42, Acetamide, Al,/V-bis(2-methyl-propyl>-2-(octylphenylphosphinyl)-, [83242-95-9], 31 145... [Pg.336]

Phosphine, seleno-metal complexes, 664 bidentate, 664 Phosphine, tributyl-, 992 Phosphine, trichloro-, 990 Phosphine, tricyclohexyl-, 992 Phosphine, triethyl-, 992 Phosphine, trifluoro-jt acidity, 1034 Phosphine, triisopropyl-, 992 Phosphine, trimethyl-, 990, 992 oxides... [Pg.1091]

The new five-co-ordinate complex [RuCl2(CO)(PCy3)2] (PCy3 = tricyclohexyl-phosphine) has been prepared (equation 4).17 Its i.r. spectrum suggested the structure... [Pg.331]

Synthesis of pinacol arylboronates 190 200 via cross-coupling reaction of bis(pinacolato)diborane(4) with chloroarenes catalyzed by palladium(O)-tricyclohexyl-phosphine complexes has been demonstrated by Ishiyama et al. (Scheme 31).115... [Pg.223]

To a dry flask was added 1-hexene (2.67 mol) and bis(tricyclohexyl-phosphine) dichloro ruthenium(II)benzylidene (2.7 mmol) and the reaction stirred for 18 hours at ambient temperature. Thereafter the mixture was filtered through 200 g Silica Gel 60-200 mesh in a 1.5 X 22" chromatography column to remove the catalyst and 115 g product isolated. [Pg.53]

HYDROGENATION CATALYSTS Aretie-chnomium tricarbonyls. (1,5-Cycloocta-diene)(pyridine)(tricyclohexyl-phosphine)iridium(I) hexafluorophosphate. Di-fi.-chlorobis( 1,5-hexadlene)dirhodium. Lindlar catalyst. Palladuim(II) acetate-So-dium hydride-/-Amyl alkoxide. Rhodium catalysts. [Pg.661]

C. /niiu HYDROXO(METHYL)BIS(TRICYCLOHEXYL-PHOSPHINE)PLATINUM(II)... [Pg.104]

ONChHj, Benzoyl isocyanide, chromium complex, 26 32, 34, 35 ONNiPC22H4, Nickel(II), [2-methylpro-panamidato(2 - )-C yV](tricyclo-hexylphosphine)-, 26 205 ONNiPC22H4o, Nickel(II), [butanami-dato(2 -)-C A/](tricyclohexyl-phosphine)-, 26 206... [Pg.403]

OsN2WC,oH,o, Tungsten, tetracarbonyl[(di-ethylamino)methylidyne](isocy-anato)-, irons-, 26 42 05P2RhC45H7i, Rhodium(I), carbonyl(hy-drogen phthalato)bis(tricyclohexyl-phosphine)-, 27 291... [Pg.407]

PC Hjj, Phosphine, tricyclohexyl-, iron complex, 26 261 molybdenum complex, 27 3, 13... [Pg.414]

P20,RhC4 H7i, Rhodium(I), carbonyl-(hydrogen phthalato)bis(tricyclohexyl-phosphine)-, 27 291... [Pg.419]

See other pages where Phosphines tricyclohexyl-phosphine is mentioned: [Pg.199]    [Pg.563]    [Pg.563]    [Pg.193]    [Pg.229]    [Pg.388]    [Pg.390]    [Pg.616]    [Pg.425]    [Pg.427]    [Pg.435]    [Pg.436]    [Pg.310]    [Pg.401]    [Pg.329]    [Pg.346]    [Pg.389]    [Pg.161]    [Pg.344]    [Pg.84]    [Pg.156]    [Pg.572]    [Pg.209]    [Pg.256]    [Pg.286]    [Pg.380]   


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Phosphine tricyclohexyl

Phosphine tricyclohexyl

Phosphine tricyclohexyl-, iron complex

Phosphine tricyclohexyl-, nickel complexes

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