Methyl acrylate, ruthenium complex

C4H6O2, Acrylic acid, methyl ester ruthenium complex, 24 176 C4H8, 1-Propene, 2-methyI-iron complexes, 24 161, 164, 166 C4H l4N5P3, l,3,5,2X ,4 ,6 -Triazatri-phosphorine... 

O2C2H4, Acetic acid mercury complex, 24 145 O2C2H6, 1,2-Ethandiol, 22 86 020,116, Acrylic acid, methyl ester ruthenium complex, 24 176 02C,Hio CdF6C2, Ethane, 1,2-dimethoxy-, bi (trifluoromethyl)cadmium, 24 55 02C3Hg, 2,4-Pentanedione actinide and lanthanide complexes, 22 156... 

Tetracarbonyl(>f -methyl acrylate)ruthenium is obtained as a colorless solid that is stable indefinitely at temperatures below —30° under argon. The complex is soluble in organic solvents but decomposes unless free methyl acrylate is added to the solvent. It appears that an equilibrium is established [eq. (1)], involving the complex, methyl acrylate, and the species [Ru(CO)4]. Excess free methyl acrylate shifts the equilibrium to the left, thereby preventing decomposition of the complex and facilitating the workup of the... 

CjHyP, Phosphine, trimethyl-, cobalt and rhodium complexes, 28 280, 281 complexes, 28 327, 329 nickel complex, 28 101 preparation of, 28 305 tungsten complexes, 27 304, 28 327, 329 C4H , 2-Butyne, cobalt-molybdenum-ruthenium complex, 27 194 C4Hg02, Methyl acrylate, platinum complex, 26 138... 

When enyne 144 is treated with ruthenium carbene complex in the presence of methyl acrylate, RCM-CM occurs to afford cyclic compound 145 in good yield ... 

One-pot RCM-CM reaction was carried out by Royer et al. (Scheme 18). The RCM of 49 followed by CM with methyl acrylate gives cyclic compound 50 using ruthenium-carbene complex 2,423 intermediate 51 with... 

Barbier reaction Samarium(II) iodide, 270 Benzoannelation Chromium carbene complexes, 82 Dicarbonylcyclopentadienylcobalt, 96 Ethyl (Z)-3-bromoacryIate, 130 Grignard reagents, 138 Methyl acrylate, 183 Methyllithium, 188 Ruthenium(III) chloride, 268 Benzoin condensation Benzyltriethylammonium chloride, 239 3-EthyIbenzothiazolium bromide, 130 Benzoylation (see also Acylation) Cadmium, 60 Dibutyltin oxide, 95 Birch reduction Birch reduction, 32... 

For example, the tail-to-tail dimerization of methyl acrylate was catalyzed by ruthenium complexes such as RuHCl(C0)(Pz-Pr3)2/CF3S03Ag or even RuC13 and gave dimethyl hexenedioate isomers. Efficient catalytic systems such as Ru(rf-naphthalene)(COD)/CH3CN, where COD is cyclooctadiene, selectively led to the diester 2 in 75% yield [1] (Eq. 1). 

Oxidative addition of the carbon-halogen bond is a well-documented reaction for Group 10 transition metal complexes, but it is relatively limited for ruthenium. The example given here involves the reversible oxidative addition of allyl halide to RuCp(CO)2X to produce RuCp(p -allyl)X2 [78]. Oxidative addition of allyl halide to a Ru(0) complex Ru(l,5-COD)(l,3,5-COT) is also reported, but the product yield was poor [79]. Nevertheless, a catalytic Heck-type alkenylation of bromostyrene with methyl acrylate by Ru(l,5-COD)(l,3,5-COT) proceeded smoothly [80]. A cross-coupling reaction of alkenyl halide with Grignard reagents or alkyl lithium also pro-... 

Water-soluble ruthenium vinylidene and allenylidene complexes were also synthetized in the reaction of [ RuC12(TPPMS)2 2] and phenylacetylene or diphenylpropargyl alcohol [29], The mononuclear Ru-vinylidene complex [RuCl2 C=C(H)Ph (TPPMS)2] and the dinuclear Ru-allylidene derivative [ RuCl( x-Cl)(C=C=CPh2)(TPPMS)2 2] both catalyzed the cross-olefin metathesis of cyclopentene with methyl acrylate to give polyunsaturated esters under mild conditions (Scheme 7.10). 

Once the NHC was introduced onto the ruthenium center, the addition of pyridine (10 equiv.) led to the 16-electron, monopyridine indenylidene complexes 54a-f (Scheme 14.24) [55, 56, 65, 66]. Interestingly, from a synthetic point of view, this preparation can also be achieved starting from (triphenylphos-phine)(indenylidene)ruthenium complexes, thereby avoiding the use of the costly and sensitive tricyclohexylphosphine [50,66]. The monopyridine complexes bearing mesityl substituents on the nitrogens were not very active at room temperature for the RCM of dienes and enynes, nor in the CM of methyl acrylate [66]. However, the controlled ROMP of norbornene-type monomers was allowed [65]. In contrast, the indenylidene complexes 54b and 54f, which bear 2,6-diisopropylphenyl substituents on the NHC and either a pyridine or 3-bromopyridine ligand, were... 

The codimerization of acrylonitrile and methyl acrylate is catalyzed by ruthenium complexes under an atmosphere of hydrogen. Besides the hydrodimerization products of each monomer, up to 50% of the head-to-head codimerization products are formed [65] (Equation 47). 

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