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7588839 |
Electroluminescent device
An OLED device comprises a cathode and an anode and has located therebetween a light-emitting layer comprising a phosphorescent light-emitting material and a host comprising a compound of a...
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7517828 |
Chiral broensted acid catalyst for asymmetric synthesis and method of asymmetric synthesis with the catalyst
A compound usable as an asymmetric synthesis catalyst which can be easily synthesized without using any metal such as a lanthanoid group element; a method of asymmetric synthesis with the compound;...
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7345185 |
Method for producing organoacylphosphites
The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic...
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7342124 |
Synthetic techniques and intermediates for polyhydroxy dienyl lactones and mimics thereof
Synthetic methods and intermediates useful in the preparation of lactone containing compounds such as discodermolide and compounds which mimic the chemical or biological activity of discodermolide...
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7294729 |
Bis-chelating ligand and use thereof in carbonylation processes
A novel bis-chelating composition characterized by formula I: wherein M is a Group VB element; R1 and R2 are each independently selected from hydrogen and monovalent hydrocarbyl radicals; or R1 and...
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7196230 |
Phosoxophite ligands and use thereof in carbonylation processes
A novel organophosphorus composition and synthesis thereof, the composition being characterized by one phosphite moiety, one phosoxophite moiety, and a plurality of sterically bulky substituents....
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7101959 |
Polymerization catalysts
A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
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7064226 |
Organopolysiloxanes containing phosphonic groups, method for the production and use thereof
The invention relates to new compounds of the formula, wherein R and R 1 are each independently hydrogen, a linear or branched C 1-40 alkyl, C 2-40 alkenyl or C 2-40 alkynyl group, an aryl or C...
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7041709 |
Dental adhesive composition
A composition including nanoparticles each having an acidic polymerizable siloxane moiety. For example, a hydrolysis stable, self-etching, self-priming dental adhesive composition including 90 to...
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6906046 |
Pharmaceutical uses and synthesis of benzobicyclooctanes
Benzobicyclooctane compounds, their use in inhibiting cellular events involving TNF-α and IL-8, and in the treatment of inflammation events in general; a combinatorial library of diverse...
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6867317 |
Alkoxylated silicone carboxylate-polymeric cationic complexes used in personal care applications
The present invention relates to a series of novel silicone alkoxylated esters which have terminal carboxyl groups that form salt complexes with certain amid containing cationic compounds to form...
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6747116 |
Phosphated fluoro alkyl dimethicone copolyol esters
The present invention relates to novel dimethicone copolyol phosphate ester compounds bearing a fluoro group attached through a hydrophobic ester linkage to silicon. This invention also relates a...
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6716787 |
Polymerisation catalyst
A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
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6646118 |
Solid phase synthesis
The present invention relates to a support system for solid phase synthesis of oligomers, such as oligonucleotides, wherein the starting compound is bound to the support via a disiloxyl linkage....
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6515183 |
Chiral diphenyldiphosphines and d-8 metal complexes thereof
Compounds of formula III, wherein R 6 und R 7 signify identical or different secondary phosphino; R 8 is —CH 2 —OH, —CH 2 —NH 2 , —CH 2 —O—B—FU, —CH 2 —NH 2 —B—FU, or...
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6465649 |
Methods for the dealkylation of phosphonate esters
Disclosed are methods for the dealkylation of phosphonate esters by use of trimethylchlorosilane as the dealkylating agent. In particular, this invention is directed to the discovery that high...
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6458978 |
Fluorous phosphines and process for their preparation
A fluorous phosphine wherein the phosphor is coupled to at least one aryl or alkyl moiety, to which moiety a fluorous tail is coupled, wherein a spacer group, containing a non-carbon atom, is...
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6437187 |
Compounds having an ionic structure used as constituent of an olefin polymerization catalyst
Novel chemical compounds have an ionic structure and in combination with an organometallic transition metal compound form a catalyst system which is advantageously used for the polymerization of...
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6414139 |
Silicon amphiphilic compounds and the use thereof
Novel silicon amphiphilic compounds which comprise a silicon residue. The silicon amphiphilic compounds are particularly suitable for use in compositions for diagnostic imaging, such as ultrasound....
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6410768 |
Diimino compounds
The present invention is related to diimino compounds of formulae (I) R 2 —N═C(R 1 )(R 3 ) n C(R 1 )═N—R 2 and (II) (R 1 ) 2 C═N—(CR 2 4 ) m —N═C(R 1 ) 2 functionalized with at...
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6303807 |
Metal complexes with a tridentate ligand as polymerization catalysts
The invention concerns novel compounds having the elements of group 11, 12 or 14; and a tridentate ligand, a method for preparing them and their use in particular as polymerisation catalyst.
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6235920 |
Method for preparing functional halosilanes
The present invention relates to a method for preparing a functional halosilanes by reacting A) a cyclic silyl ether having the formula ##STR1## wherein each R is independently selected from...
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6197986 |
Compounds containing biologically active silicon, which are under solid form
Organo silicon compound having the following general formula (I): R 4 --Si (OR 1 ) (OR 2 ) (R 3 ) (I) where R 1 and R 2 each one independently represent an atom of hydrogen or an alkyl...
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6051319 |
Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative
An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are...
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5962744 |
Process for hydrocarbonylations in supercritical carbon dioxide
A process comprising subjecting at least one compound containing at least one carbon--carbon double bond or at least one carbon--carbon triple bond, hydrogen and carbon monoxide, to a...
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5962713 |
Carbosilane dendrimers comprising Si-O-metal bonds, a method of preparing them and their use
The present invention relates to new carbosilane dendrimers comprising Si--O-metal bonds, to a method of preparing them and to their use.
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5917074 |
Preparation and applications of fluorinated propargyl phosphonate reagents
The invention provides new fluorinated γ-tri-substsituted silylpropargyl phosphonates and methods for their use to generate a variety of diverse fluorine-containing compounds. The new fluorinated...
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5883277 |
Metallocene complexes with cationic bridges
Metallocene complexes having a cationic bridge of the formula ##STR1## where the substituents have the following meanings: M is a metal of transition group III, IV, V or VI of the Periodic Table of...
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5831106 |
Preparation of bridged metallocene complexes
A process for preparing metallocene complexes of the general ##STR1## in which the substituents have the following meanings: M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, ...
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5817848 |
Bidentate phosphine ligand
The invention relates to a bidentate phosphine ligand, the phosphorus atoms of the phosphine being connected via a bridge group, the bridge group of the bidentate phosphine ligand consisting of an...
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5792881 |
Thiolsilanes, method of their production and of their use
The invention relates to hydrolyzable and polyadditive silanes, a method of heir production and of their use in the production of (hetero) silicic acid polycondensates and of polyadducts. The...
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5717124 |
Process for preparation of oxyglutaric acid ester derivatives
A process for preparing an oxyglutaric acid ester derivative of the formula: ##STR1## in which each of R 1 and R 2 is C 1 -5 alkoxy, C 1 -7 aralkyloxy, C 7 -9 halogenated aralkyloxy or phenyl, R...
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5703258 |
Silicon and phosphorus containing compositions
A flame retardant organic silicon and phosphorus containing compound is produced by reacting a silicon halides compound with an organic phosphorus compound to produce an organic silicon and...
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5693840 |
Production of silicon-phosphorus containing compositions
A mixture of silicon and phosphorus are heated and reacted with halide to produce silicon tetrahalides, silicon-phosphorus halide and phosphorus trihalides compositions. These compositions are...
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5693826 |
Process for the production of unsaturated phosphonic ester
An unsaturated phosphonic ester is produced by reaction of an acetylene compound with a secondary phosphite in the presence of a palladium complex catalyst.
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5674964 |
Self-curing systems
The invention relates to self-curing systems based on polymerizable and hydrolytically condensable or condensed silicon compounds. The systems according to the invention comprise one or more...
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5631394 |
Pharmaceutically active ceramide-related compounds
This invention provides a compound having the formula R 1 --Y 1 --CHZ 1 --CH(NY 2 Y 3 )--CH 2 --Z 2 , wherein: R 1 is a straight-chained alkyl, alkenyl or alkynyl group having from 8 to 19...
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5627296 |
Phosphorus-containing organosilicon compounds
The present invention provides novel phosphorus-containing organosilicon compounds which can be prepared in a simple manner using readily obtainable starting materials, which are hydrophilic to...
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5591879 |
Process for preparing cyclopentadienyl-type ligands
In accordance with the present invention there is provided a cyclopentadienyl-type ligand represented by the formula ZA, wherein Z is a cyclopentadienyl-type group, wherein A is --YPR 2 , --YNR 2 ,...
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5585509 |
Metallocene complexes having heterofunctional groups in the cyclopentadienyl system
Metallocene complexes of the general formula I ##STR1## where the substituents Y, M, x, R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 , and R 9 are as described in the disclosure, and ligand systems of...
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5532398 |
Silanes, process for their preparation and their application to prepare polymers and polycondensates
Silanes of the general formula (I): {X a R b Si(R'(A) c ) (4-a-b) } x B (I) in which the groups and indices have the following meaning: X: hydrogen, halogen, hydroxy, alkoxy, acyloxy,...
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5498736 |
2,5-reactive substituent group-containing siloles, silole polycondensates and preparation thereof
2,5-Reactive substituent group-containing siloles of the following general formula are provided ##STR1## wherein R 1 to R 4 may be the same or different and independently represent a monovalent...
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5491266 |
Asymmetric syntheses
This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically...
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5476888 |
Diphosphines
The diposphines have the formula (I) ##STR1## wherein: R 2 , R 3 and R 4 independently from each other represent a hydrocarbyl group which is substituted with one or more radicals selected from...
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5474716 |
Process for the preparation of bridged cyclopentadienylmagnesium compounds and use thereof for preparing metallocenes
Disclosed are processes for the preparation of new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpR a )(Cp'R' a ')Mg, and the use thereof for preparing bridged metallocenes.
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5457219 |
Phosphorus compounds
Novel, racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl or lower alkoxy and R 1 represents lower alkyl, cycloalkyl or substituted phenyl,...
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5453221 |
Bridged cyclopentadienylmagnesium compounds and use thereof for preparing metallocenes
Disclosed are new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpR a ) (Cp'R' a ')Mg, processes for the preparation thereof, and the use thereof for preparing bridged...
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5359105 |
Deprotonation of cyclopentadienyl derivatives
Cyclopentadienyl derivatives are deprotonated by a process whereby the cyclopentadienyl derivatives are reacted with a Grignard reagent in an inert solvent which contains from about 0.5 to 1.5...
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5290960 |
Diacetylenic phospholipids containing heteroatom near diacetylenic functionality for modulation of microstructure morphology
Novel diacetylenic phospholipids having the diacetylenic moieties chemically decoupled from the rest of the acyl chains by the inclusion of one or more heteroatom, preferably oxygen, spacers on the...
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5260481 |
Process for the conditioning and/or purification of organic isocyanates
The present invention relates to a process for the conditioning and/or purification of organic isocyanates by a) mixing organic isocyanates at 20° to 150° C. with 0.001 to 1 mole %, based on...
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