| The Catalytic Activity of Group VIB Carbene Complexes |
1978 |
1788 |
The synthesis and properties of transition metal carbene complexes has been an area of fertile development with the preparation of many compounds being reported in the past few years(1). Interest is now being shown in the catalytic activity of comple... |
| Electrochemistry of Homogeneous Catalysts: Correlation of the Electrochemistry and the Ziegler—Natta Catalytic Activity of Metal Acetylacetonate Complexes |
1984 |
5711 |
A series of metal acetylacetonates [M(acacn] was characterized electrochemically using cyclic voltammetry and Differential Pulse Voltammetry. The Nicholson and Shain criteria [1, 2] was used to determine the electrochemical reduction mechanisms of th... |
| Homogeneous Catalysis III. Hydrosilylation Of a, ß-Unsaturated Aldehydes; Regiospecific Reduction Of C=0 Using Ni0 Catalysts |
1975 |
2554 |
The addition of trialkoxysilanes across the carbonyl bond in crotonaldehyde has been demonstrated for a variety of nickel(0) complexes. The carbon—carbon double bond is left intact. This differs from catalysts used previously, such as chloroplatinic ... |
| Homogeneous Catalysis Part II. Ziegler Systems as Catalysts for Hydrosilylation |
1974 |
2174 |
Ziegler type systems, e.g., M(acac)n—AIEt3 (M = Ni, Co, or Fe) catalyse the hydrosilylation of 1,3-dienes or terminal acetylenes. With isoprene or 1,3-pentadiene the 1,4-adducts CH3 CH=C(CH3)CH2 SiX3 or CH3 CH2 CH=CHCH2- SiX3 are the major products, ... |
| Homogeneous Catalysis VI. Hydrosilylation Using Tri(Pentanedionato)Rhodium(III) or Tetrakis(µ-Acetato)Dirhodium(II) as Catalysts |
1979 |
2188 |
The catalytic activity of tris(pentanedionato)rhodium(III), (or rhodium(III) acetylacetonate) (I) has been investigated for the hydrosilylation of a variety of organic substrates: alkenes, terminal or internal acetylenes, conjugated dienes, or a,ß-un... |
| Homogeneous Catalysis. IV. Hydrosilylation of Cyclic or Linear Dienes- Using Low-Valent Nickel Complexes and Related Experiments |
1977 |
3316 |
The hydrosilylation of cyclohexadienes using Ni(acac)2 -Al(OEt)Et2 gives only the allylic cyclohexenylsilane with both 1,3- or 1,4-(in presence of a phosphine) cyclohexadienes. The reactions with the isomeric cis- or trans-1, 3-pentadienes (giving 1:... |
| Homogenous Catalysis V. Hydrosilylation of Dienes with Octacarbonyldicobalt(0) |
1977 |
2202 |
The room temperature hydrosilylation of linear 1,3-dienes and 1,3- or 1,4- cyclohexadienes using octacarbonyldicobalt(0) is described. Both cyclic dimers yield regiospecifically 2-cyclohexenylsilanes. The 2,3-dimethyl-1,3-butadiene (DMBD)/HSi(OSiMe3)... |
| Hydrosilylation of 1-Pentyne by Triethylsilane Catalyzed by Phosphine-Rhodium Complexes |
1981 |
3056 |
The hydrosilylation of 1-pentyne by triethylsilane has been investigated using rhodium catalysts, formed by displacement of cyclooctene from dichlorotetrakis(cyclooctene)dirhodium(I) by various molar ratios of phosphines. The results are interpreted ... |
| Iridium Complexes as Hydrosilylation Catalysts |
1985 |
3950 |
Iridium complexes have been found to be active as catalysts for hydrosilylation reactions, especially for those involving 1,3-dienes and 1-alkynes. For ketones, iridium complexes show maximum activity if one molar equivalent (relative to iridium) of ... |
| Molecular and Supramolecular Structure of 4,4’ Bipyridinium Diiodide |
1998 |
1472 |
The structure of 4,4'-bipyridinium diiodide has been determined. The diprotonated cation possesses crystallographic inversion symmetry with the pyridyl rings coplanar. The crystal packing is dominated by weak but directional N-H···I (N···I distance o... |
| Organic Peroxide Assisted Transition Metal Hydrosilylation Catalysis |
1983 |
2280 |
The catalytic activity of rhodium complexes for the hydrosilylation of substrates such as alkenes, 1,3-dienes, 1-alkynes, or ketones, is enhanced by the addition of organic oxidizing agents, such as t-butyl hydroperoxide, hydrogen peroxide, or m-chlo... |
| Regioselective Synthesis of Dialky1-1,3-cyclopentadienes via Novel 2-Alkyl-6,6-dialkylfulvenes |
1990 |
1312 |
2-Alkyl-6,6-dialkylfulvenes are synthesized by the condensation of monosubstituted 1,3-cyclopentadienes with carbonyl compounds in the presence of pyrrolidine and converted to the corresponding dialkyl-1,3-cyclopentadienes by the addition of nucleoph... |
| Rhodium Carbene Complexes As Hydrosilylation Catalysts |
1977 |
4175 |
The catalytic activity of various rhodium carbene complexes has been investigated. These complexes are active for the hydrosilylation of a wide variety of unsaturated organic molecules such as olefins, acetylenes and dienes. Their activity is compara... |
| Rhodium Phosphite Clusters as Hydrosilylation Catalysts |
1987 |
2568 |
The activity of rhodium phosphite complexes as catalyst precursors for hydrosilylation reactions has been investigated. These are found to be active for a wide variety of organic substrates. Both hydride clusters, [RhH[P(OR3)}2]n and chloride dimers,... |
| Rhodium(II) Complexes As Hydrosilylation and Hydrogenation Catalysts |
1981 |
2692 |
Two phosphine-rhodium(II) complexes, bis(tris-o-tolylphosphine)dichlororhodium(II) and bis(tricyclohexyl-phosphine)dichlororhodium(II), have been found to be active catalysts for the hydrosilylation of a variety of organic substrates, and, in conjunc... |
| Silica supported allylmetals as hydrosilylation catalysts |
1987 |
2203 |
The use of metal complexes on supports such as silica and alumina provides a method for heterogenizing homogeneous catalysts, allows easy recovery of catalysts from the product mixture, and also facilitates recovery of such systems in fixed bed react... |
| Synthesis and addition polymerization of vinylhenzyl transition metal compounds |
1991 |
1067 |
The synthesis of three vinylbenzyl complexes (n5-C5H5)- M(CO)n(CH2C6H4CH = CH2), [(1), M = Mo, n = 3; (2), M = W, n = 3; (3), M = Fe, n = 2] is reported. Complexes (1) and (2) have been copolymerized with monomers, such as styrene, methyl methacrylat... |
| Synthesis and properties of novel substituted 4,5,6,7-tetrahydroindenes and selected metal complexes |
1995 |
2128 |
The synthesis of a complete series of substituted 4,5,6,7-tetrahydroindenes (4,5,6,7-tetrahydroindene, 1; 1-methyl-, 1,3-dimethyl- and 1,2,3-trimethyl-4,5,6,7-tetrahydroindene, 2-4) is reported. The synthesis of ferrocenes (8-11) from these substitut... |
| Synthesis and properties of sterically congested cyclopentadienes and their transition metal complexes |
1993 |
5429 |
The synthesis of 1,3-dialkyl substituted cyclopentadienes, C5H4RR', Cp'H (Va-g) (where R and R' are tert-butyl, isopropyl, neo-pentyl, cyclohexyl, or 1-methylcyclohexyl) is reported. These are synthesized by the nucleophilic addition of methyl or hyd... |
| Synthesis and structures of dinuclear low-coordinate lithium and zirconium(IV) complexes derived from the diamido ligands 1,3-(CH2N¯C6H3R1 2)2C6H4 (R1 _ Me or Pri) |
2002 |
1037 |
Treatment of 1,3-bis(bromomethyl)benzene with two equivalents of the appropriate compound Li[N(H)C6H3R12-2,6] yielded the diamines 1,3-[CH2N(H)C6H3R1 2-2,6]2C6H4 1 [R1 = Me, abbreviated as H2(D)] or 2 [R = Pri, abbreviated as H2(D_)]. The crystalline... |
| Synthesis and X-ray crystal structures of alkaline-earth metallocenes with pendant substituents |
1996 |
2439 |
Deprotonation of [(2-C5H4N)CH2CMe2]C5H5 ( = HCppy) and CH3OCH2CH2C5H5 (= HCp§) with Ae[N(SiMe3)2]2 (Ae = Ca, Sr. Ba) in toluene produces the corresponding metallocenes, Cp'2Ae, in high yield. 1H NMR data reveal that the calcium complex (Cppy)2Ca does... |
| The synthesis and X-ray structures of ytterbocene(II) complexes containing pendant pyridyl groups, |
1994 |
1514 |
Metallation of C5H5[C(Me)2CH2C5H4N-2] ( CppyH), C5H4(SiMe3)[{C(Me)2CH2C5H4N-2)-3] ( Cp'pyH), C5H5[C(Me)2C5H4N-2] ( Cppy(s)H), and C5H4[(SiMe3){C(Me)2C5H4N-2}-3] [ Cp'py(s)H] with KH in THF yielded the potassium complexes KCppy (1), KCp'py (2), KCppy(... |
| The Synthesis of (+) and (-)-2,3,-O-Isopropylidene-2,3-Dihydroxy-1,4-Bis(Diphenylarsino)Butane and Their Use in Asymmetric Catalysis |
1979 |
8000 |
(+)- and (-)-2 ,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylarsino)butane, the arsenic analogs of (+)- and (-)-diop have been synthesized in good yields. These ligands give similar optical yields to diop in the asymmetric hydrosilylation of keto... |
| Synthesis of Novel Platinum Complexes Showing Potential as Anti-Cancer Drugs |
1979 |
2422 |
Many metal co-ordination complexes have been investigated as potential anti-cancer drugs with a rich diversity of effects and toxicity (1). One of the most successful is cis-diamminedichloroplatinum(II), which is an active anti-tumor agent at low con... |
| Synthesis of Novel Substituted Cyclopentadienes and Their Early Transition Metal Complexes |
1989 |
2485 |
Synthesis of two substituted cyclopentadienes, 1,3-bis(1-methylcyclohexyl) cyclopentadiene, Cp'H and [2-methyl-2-(2-pyridyl)ethyl]cyclopentadiene, Cp"H from fulvene intermediates is reported. These are readily converted to their early transition meta... |
| Synthesis, X-Ray Structural Determination and Coordination Chemistry of 4'-Ferrocenyl-2,2':6',2''-terpyridine |
1993 |
2123 |
4'-Ferrocenyl-2,2' : 6',2"-terpyridine(Fctrpy) has been prepared from ferrocene carboxaldehyde and 2-acetylpyridine. A single crystal X-ray structure analysis indicates typical bond distances and angles with nearly coplanar aromatic rings. The angle ... |
| Synthesis, X-Ray Structural Determination and Coordination Chemistry of 4’-Ferrocenyl-2,2’ : 6’,2”- Terpyridine |
1993 |
1407 |
4'-Ferroceny1-2,2' : 6',2"-terpyridine(Fctrpy) has been prepared from ferrocene carboxaldehyde and 2-acetylpyridine. A single crystal X-ray structure analysis indicates typical bond distances and angles with nearly coplanar aromatic rings. The angle ... |