Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8067642 | Chiral phosphorous compounds The present invention provides P-chiral compounds of general formulae (II) and (III): in formula (II) at least one of R21, R25, R26 and R30 is independently selected from CM alkyl, CF3, C1-4 alkoxy, p... | 11/29/2011 |
| 7923582 | Chemoselective ligation The present invention features a chemoselective ligation reaction that can be carried out under physiological conditions. In general, the invention involves condensation of a specifically engineered phosphine, which can provide for formation of an amide bond between... | 04/12/2011 |
| 7915455 | Transition metal complex ligand and olefin polymerization catalyst containing transition metal complex The invention provides a transition metal complex of formula (3) below: wherein R1, R2, R3, R4, R5, R6, R7 and R8 | 03/29/2011 |
| 7705188 | Structural modification of resveratrol: sodium resverastatin phosphate Described herein are novel compounds having antineoplastic and antimicrobial activity, obtained via structural modifications of resveratrol and combretastatin A-4, methods for synthesis of these compounds, and their use in pharmaceutical composition and for use in t... | 04/27/2010 |
| 7667079 | Processes for recovery of a triarylphosphine from a group VIII metal catalyst complex mixture Processes for recovering at least one triarylphosphine from a Group VIII metal catalyst triarylphosphine complex mixture are provided. The processes are particularly useful for recovering the triarylphosphine from spent Group VIII metal catalyst complex mixtures. Th... | 02/23/2010 |
| 7491851 | Method for generating secondary phosphines This invention provides a method for generating secondary phosphines from secondary phosphine oxides in the presence of a reducing agent, such as diisobutylaluminum hydride (DIBAL-H), triisobutyldialuminoxane, triisobutylaluminum, tetraisobutyldialuminoxane, or anot... | 02/17/2009 |
| 7439401 | Process for preparing acylphosphanes and derivatives thereof The present invention relates to a new, selective process for the preparation of mono- and bisacylphosphanes of formula (I) n and m are each independently of the other 1 or 2; R1, if n=1, is e.g. phenyl R1, if n=2, is e.g. C1-C1... | 10/21/2008 |
| 7414156 | Non-C-symmetric bisphosphine ligands as catalysts for asymmetric hydrogenation Non-C2-symmetric bisphospholane ligands and methods for their preparation are described. Use of metal/non-C2-symmetric bisphospholane complexes to catalyze asymmetric transformation reactions to provide high enantiomeric excesses of formed comp... | 08/19/2008 |
| 7405262 | Preparation of functionalized anionic polymerization initiators A process for preparing a functionalized polymerization initiator, the process comprising combining a functionalized styryl compound and an organolithium compound. ... | 07/29/2008 |
| 7385064 | Catalysts for use in enantioselective synthesis Disclosed are compounds having the following formula: in which Z11 is selected from a substituted or unsubstituted saturated adamantyl or other polycyclic group and a substituted or unsubstituted branched acyclic... | 06/10/2008 |
| 7368585 | 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 are provided. ... | 05/06/2008 |
| 7297821 | Fluorine compound and fluorinating agent comprising the compound A fluorine compound represented by Formula (1) is provided. The above fluorine compound is effective for introducing a fluorine atom into a compound having an active group such as an oxygen-containing functional group, and it can be used for uses of surface treatmen... | 11/20/2007 |
| 7282339 | Competitive immunoassay The present invention provides ligand-detection reagents, ligand analogs and methods for determining the presence of a ligand in a sample. The ligand-detection reagent comprises a ligand-binding antibody and a ligand analog to form an antibody-ligand analog complex ... | 10/16/2007 |
| 7268242 | Chelating carbene ligand precursors and their use in the synthesis of metathesis catalysts Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis reactions efficiently, which can be recovered from the reaction mixture and... | 09/11/2007 |
| 7256259 | Methods for ligation of molecules to surfaces The present invention is a method for a covalent ligation of one or more molecules to one or more surfaces, that is site-specific and both rapid and high yielding. The covalent ligation to the surface is based on the reaction of an azide and a phosphinothioester to ... | 08/14/2007 |
| 7256314 | Method for generating secondary phosphines This invention provides a method for generating secondary phosphines from secondary phosphine oxides in the presence of a reducing agent, such as diisobutylaluminum hydride (DIBAL-H), triisobutyldialuminoxane, triisobutylaluminum, tetraisobutyldialuminoxane, or anot... | 08/14/2007 |
| 7256302 | Substituted paracyclophane derivatives in asymmetric catalysis A substituted paracyclophane is described of formula (I) wherein X1 and X2 are linking groups comprising between 2 to 4 carbon atoms, Y1 and Y2 are selected from the group consisting of hydrogen, halide, oxygen, nitrogen, ... | 08/14/2007 |
| 7238841 | Polymer-supported phosphorus ligands for catalysts Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts. | 07/03/2007 |
| 7230136 | Process for preparing tertiary phosphines The invention relates to a process for synthesizing tertiary phosphines by reacting halophosphines with organomagnesium compounds in the presence of copper compounds and optionally of salts. ... | 06/12/2007 |
| 7223879 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. ... | 05/29/2007 |
| 7208633 | Process for preparation of diphosphine compounds and intermediates for the process A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c,... | 04/24/2007 |
| 7201957 | Phosphine oxide hydroxyaryl mixtures with novolac resins for co-curing epoxy resins There is disclosed a novel mixture of polyhydroxy phenolic curing agents, such as novolac resins blended with a mixture of mono, bis and tris hydroxyaryl phosphine oxides for co-curing epoxy resins and imparting flame resistance thereto. A preferred composition incl... | 04/10/2007 |
| 7202311 | Phosphine oxide hydroxyarl mixtures with novolac resins for co-curing epoxy resins There is disclosed a novel mixture of polyhydroxy phenolic curing agents, such as novolac resins blended with a mixture of mono, bis and tris hydroxyaryl phosphine oxides for co-curing epoxy resins and imparting flame resistance thereto. A preferred composition incl... | 04/10/2007 |
| RE39532 | Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alky... | 03/27/2007 |
| 7179936 | Process for recovering a crystalline product from solution An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided. ... | 02/20/2007 |
| 7173138 | Ligands for pnicogen chelate complexes with a metal of subgroup VIII and use of the complexes as catalysts for hydroformylation, carbonylation, hydrocyanation or hydrogenation Pnicogen chelate compounds which have two pnicogen-containing groups joined to one another via a xanthene-like or triptycene-like molecular skeleton and in which at least one pyrrole group is covalently bound via its nitrogen atom to each pnicogen atom form complexe... | 02/06/2007 |
| 7122703 | Chemoselective ligation The present invention features a chemoselective ligation reaction that can be carried out under physiological conditions. In general, the invention involves condensation of a specifically engineered phosphine, which can provide for formation of an amide bond between... | 10/17/2006 |
| 7112696 | Preparation of phosphorus compounds The present invention relates to a process for preparing phosphorus compounds and intermediates. ... | 09/26/2006 |
| 7112697 | Methods for formation of aryl-sulfur and aryl-selenium compounds using copper(I) catalysts A mild, palladium-free synthetic protocol for the cross-coupling reaction of vinyl or aryl iodides and thiols or selenols using, in certain embodiments, 10 mol % CuI and 10 mol % neocuproine, with NaOt-Bu as the base, in toluene at 110 ° C. A variety of vinyl/aryl ... | 09/26/2006 |
| 7109286 | Phosphorus-containing hydroquinone derivatives, process for their production, phosphorus-containing epoxy resins made by using the derivatives, flame-retardant resin compositions, sealing media and laminated sheets A phosphorus-containing hydroquinone derivative represented by a general formula (1): (where R1 and R2 represent linear or branched alkyl groups that are identical or may be different, and/o... | 09/19/2006 |
| 7091292 | Bridged bi-aromatic catalysts, complexes, and methods of using the same Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers... | 08/15/2006 |
| 7081533 | Cycloaliphatic/aromatic diphosphines and use thereof in catalysis The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds and their use as catalysts. ... | 07/25/2006 |
| 7078568 | Phosphine compounds, transition metal complexes with the compounds contained as ligands therein, and asymmetric synthesis catalysts containing the complexes Phosphine compounds represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6 and R7 represent substituents, and asymmet... | 07/18/2006 |
| 7074737 | Alkylation of triphenylphosphate A process for the alkylation of triphenylphosphate by reaction of triphenylphosphate with an olefin in the presence of an effective amount of a solid acid catalyst selected from the group consisting of at least one zeolite, heteropolyacid or salt thereof, metal trif... | 07/11/2006 |
| 7074505 | Photoactive lanthanide complexes with phosphine oxides, phosphine oxide-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a ... | 07/11/2006 |
| 7074504 | Photoactive lanthanide complexes with phosphine oxides, phosphine oxides-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a ... | 07/11/2006 |
| 7070941 | Methods and compositions for tagging via azido substrates The invention provides methods and compositions for azide tagging of biomolecules. In one embodiment of the invention, proteins are tagged by metabolic incorporation of prenylated azido-analog substrates. Examples of such analogs are azido farnesyl diphosphate and a... | 07/04/2006 |
| 7067701 | Preparation of phosphorus-containing compounds useful in the preparation of biphosphine ligands This invention relates to processes for making phosphorus compounds R2P—X—PR2, R2P-M, R2P-L and R3P, and the novel cation R2P+(L)-X—P+(L)R2, where R represents a... | 06/27/2006 |
| 7038307 | Semiconductor chip with FIB protection The present disclosure is directed to a semiconductor chip having protection against focused ion beam (FIB) attack. The semiconductor chip includes a conductor structure connected to a dielectric material, which has the property of giving rise, when ions are introdu... | 05/02/2006 |
| 7034093 | Catalysts for olefin polymerization Late transition metal complexes of certain neutral iminophosphine ligands are useful as components of polymerization catalysts for olefins. Useful metals in the complexes include Ni, Pd, Fe and Co. Oligomers and/or polymers of olefins such as ethylene can be made. | 04/25/2006 |
