摘要:
Die vorliegende Erfindung betrifft durch Kondensations- und/oder Additionsreaktionen härtbare Beschichtungszusammensetzung enthaltend (A) mindestens ein Polymer als Bindemittel, (B) mindestens ein Vernetzungsmittel, welches durch Kondensations- und/oder Additionsreaktion mit der Komponente (A) umgesetzt werden kann, sowie (C) mindestens einen speziellen Komplex als Katalysator. Die vorliegende Erfindung betrifft auch die Verwendung des Komplexes zur Katalyse der Härtung von durch Kondensations- und/oder Additionsreaktion härtbaren Beschichtungszusammensetzungen.
摘要:
The present invention provides acyclic, bicyclic, monocyclic, and tricyclic analogs and derivatives of tricyclic antidepressants which have sodium channel inhibiting activity. The compounds of the invention are useful as analgesics and anesthetics for diseases, conditions, and disorders where regulation of sodium channel activity can alleviate pain.
摘要:
Catalyst compositions useful for the polymerization of olefins are disclosed. These compositions comprise a Group 8-10 metal complex comprising a bidentate or variable denticity ligand comprising two nitrogen donor atoms independently substituted by an aromatic of heteroaromatic ring(s), wherein the ortho positions of said ring(s) are substituted by aryl or heteroaryl groups. Also disclosed are proceses for the polymerization of olefins using the catalyst compositions.
摘要:
The invention concerns a method for the enantioselective reduction of prochiral ketones into chiral alcohol's comprising the following steps: a) reacting a prochiral ketone with a silane agent, present in stoichimetric amount, in the presence of a catalyst derived from a precursor compound of Zn, Co or Cd and of a chiral ligand selected from the group consisting of chiral amines, imines, alcohol's or aminoalcohol's; b) hydrolysis of resulting siloxane using an appropriate agent; c) separating and purifying the resulting optically active alcohol. In one preferred embodiment, polymethylhydrosiloxane (PMHS) is used as silane agent. The preferred metal is Zn. The precursor compound is produced by reacting a salt or complex of the particular metal with a reducing agent; in another embodiment, an appropriate salt of the selected metal is used in the reaction with the chiral ligand, to produce the catalytic agent, after reaction with the ligand. The method is useful for obtaining high enantiomeric excesses (ee) in chiral alcohol's.
摘要:
The present invention discloses single site catalyst systems having anionic scorpion-like three dimensional structure, that are suitable for oligomerising or polymerising ethylene and alpha-olefins.
摘要:
A process is described for producing one or more substituted iminoamines, in particular beta-unsaturated beta-iminoamines, in a single reaction comprising reacting one or more primary amines, alkynes, and isonitriles in the presence of a transition metal catalytic complex, preferably a titanium metal catalytic complex such as (N,N-di(pyrrolyl-alpha-methyl)-N-methylamine)titanium (Ti(NMe2)2(dpma), under reaction conditions effective for 3-component coupling of the primary amines, alkynes, and isonitriles to produce one or more of the substituted iminoamines.
摘要:
An imine fixed to a resin characterized in that it is represented by the following formula: P-Q-N=CH-R wherein P represents a main chain of a polymer constituting the resin, Q represents a hydrocarbon side chain optionally substituted with a substituent which may be bonded via a heteroatom and R represents an optionally substituted hydrocarbon group or a heterocyclic group, and a beta -aminocarbonyl compound fixed to a resin represented by formula (II) are provided. The beta -aminocarbonyl compound fixed to a resin is a beta -aminocarbonyl compound being handled in a solid form. An amine fixed to a resin which is a key compound for a solid state synthesis of this type and represented by the following formula: P-Q1-O-Q2-NH2, wherein Q1 and Q2 are each a hydrocarbon chain selected from among an arylene group, an alkylarylene group and an arylenealkylene group, is also provided, which allows the synthesis of beta -aminocarbonyl compound by application of an iminoaldol reaction in a solid phase.