摘要:
Methodologies for the synthesis, screening and characterisation of organometallic compounds and catalysts (eg homogenous catalysts), including combinatorial synthesis, screening and characterisation of libraries of supported and unsupported organometallic compounds and catalysts (eg homogenous catalysts). The methods can be applied to the preparation and screening of large numbers of organometallic compounds which can be used not only as catalysts (eg homogeneous catalysts), but also as additives and therapeutic agents.
摘要:
Methodologies for the synthesis, screening and characterisation of organometallic compounds and catalysts (eg homogenous catalysts), including combinatorial synthesis, screening and characterisation of libraries of supported and unsupported organometallic compounds and catalysts (eg homogenous catalysts). The methods can be applied to the preparation and screening of large numbers of organometallic compounds which can be used not only as catalysts (eg homogeneous catalysts), but also as additives and therapeutic agents.
摘要:
The invention relates to a catalyst and the use thereof in polymerisation. The catalyst contains a compound of general formula (I), wherein R1 stands for a mono or polycylic hydrocarbon, M1+ means an VIIIb group transition metal and X- is at least one non-coordinating or low-coordinating anion.
摘要:
A transition metal compound represented by the general formula (2) or (3) described below, a catalyst component for olefin polymerization comprising said transition metal compound, a catalyst component for olefin polymerization using said transition metal compound and (C) and/or (D) described below, and a process for producing an olefinic polymer wherein olefins are homopolymerized or olefins are copolymerized with other olefins and/or other polymerizable unsaturated compound using said catalyst for olefin polymerization.
(C): A specific aluminum compound (D): A specific boron compound
摘要:
Tris(isonitrile)copper(I) sulfate complexes and their use in synthetic methods for making radionuclide isonitrile coordination complexes such as [ Tc(1-isocyano-2-methoxy-2-methylpropane)6] . The coordination complexes are useful as radiopharmaceutical imaging agents.
摘要:
The present invention is directed to methods for solubilizing boric acid to produce liquid, boron-containing solutions. In these methods, boric acid is added to a previously formed solution of a metal ion and ligand. The ligand must be capable of both complexing the metal ion and simultaneously coordinating or hydrogen bonding with the boric acid. Preferred metal ions are the transition metals. Preferred ligands are the alkanolamines, polyamines, dialkylaminoalkylamines and alkyldiaminecarboxylic acids and salts thereof. Using the methods of the present invention, stable, clear solutions, preferrably aqueous solutions, containing about 9-11 percent-by-weight or more boron are readily prepared.
摘要:
Chiral catalysts for enantioselectively epoxidizing a prochiral olefin are disclosed, together with methods of using such catalysts. In accordance with one aspect of the invention, the catalyst is a salen derivative which has general structure (I).
摘要:
A compound represented by general formula (I) and useful for treating or preventing mycoplasmal infection, wherein M represents a di- or trivalent metal ion; and X represents OH or Oo.
摘要:
The invention relates to a nickel compound which can be used as a catalyst, said nickel compound having a central nickel atom complexed by a diphosphine ligand. In said diphosphine ligand the P-atoms are interconnected through a metallocene biradical or an aromatic bivalent radical. The invention also relates to the use of said nickel compound and to a method of preparing an aromatic cyanide from an aromatic halide and an alkali metal cyanide in a substantially anhydrous non-dipolar aprotic solvent under the influence of said phosphine-nickel catalyst, in the presence of a reducing agent.