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| Number | Title | Issue Date |
| 7842843 | Mixture containing 1,3-butadiene and process for producing the same To provide a C4 fraction that contains significantly reduced amounts of butynes and methylallene and to provide a process for low-cost and effective production of ethers in which the C4 fraction is used as the starting material for a telomerization process. A... | 11/30/2010 |
| 7622616 | Dehalogenation process A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds having a linear, branched or cyclic structure, said halofluorinated compounds containing in the molecule at least one group: | 11/24/2009 |
| 7119222 | Method for producing allyl compound, and ether or ester compound produced thereby A method for producing an allyl compound having a compositional formula different from that of an allyl starting material compound, which comprises reacting the allyl starting material compound with an oxygen nucleophilic agent in the presence of a catalyst containi... | 10/10/2006 |
| 7115784 | Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or a... | 10/03/2006 |
| 7094918 | Low-color ultraviolet absorbers for thermoplastic and thermoset high UV wavelength protection applications Novel ultraviolet absorbing compounds that are liquid in nature, are low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing protection in... | 08/22/2006 |
| 6891058 | Low-color ultraviolet absorber compounds and compositions thereof Novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing pro... | 05/10/2005 |
| 6809223 | Process for stereoselective synthesis of prostacyclin derivatives An improved method is described for making 9-deoxy-PGF1-type compounds. In contrast to the prior art, the method is stereoselective and requires fewer steps than the known methods for making these compounds. “Also described are novel intermediate compou... | 10/26/2004 |
| 6559216 | Low-color ultraviolet absorber compounds and compositions thereof Novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in pr... | 05/06/2003 |
| 6399837 | Electron donors A method of polymerizing at least one olefin comprising contacting the olefin with a catalyst composition comprising: 1) a procatalyst composition comprising a magnesium and titanium-containing component and an electron donor compound of the structure: ##... | 06/04/2002 |
| 6271423 | Preparation of butenyl ethers A process for preparing butenyl ethers of the formula I CH3 --CH.dbd.CH--CH2 --OR I by reacting butadiene or butadiene-containing hydrocarbon streams with alcohols of the formula II ROH II at elevated temperature and superatmospheric pressur... | 08/07/2001 |
| 6211416 | Method for producing enol ethers Enol ethers of the formula I ##STR1## where R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently ... | 04/03/2001 |
| 6166226 | Synthesis of aryl ethers A method for preparing an aryl ether compound is provided in which an alcohol is reacted with an aromatic compound in the presence of a base, and a transition metal catalyst selected from the group consisting of platinum and nickel to form an aryl ether. ... | 12/26/2000 |
| 6156889 | Reagent useful for cleaving a protected functional group The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising a... | 12/05/2000 |
| 6124507 | Electron donors Novel compositions of the structure ##STR1## wherein R1 and R2 are each an alkoxy group which may be the same or different and have from one to ten carbon atoms, and R3 -R6 are each individually, hydrogen, ... | 09/26/2000 |
| 6106908 | Liquid crystalline (E, E)-butadiene compounds and mixtures and devices containing such compounds Liquid crystalline compounds useful in super twisted nematic liquid crystal displays are described and have the formula: ##STR1## wherein n is 1-5; m is 0-5; p is 0, 1 or 2; q is 0, 1 or 2 p+q is less than or equal to 3; A1, A2, A | 08/22/2000 |
| 5986137 | Allylation reagent and process for allylating a nucleophile A process and reagent for allylating a nucleophile preferably of formula (V). (R)n Ar--Y--H (V) The nucleophile is reacted with a reagent containing an allyl derivative and a catalyst in an aqueous phase conta... | 11/16/1999 |
| 5847166 | Synthesis of aryl ethers A method for preparing an aryl ether compound is provided in which an alcohol is reacted with an aromatic compound in the presence of a base, and a transition metal catalyst selected from the group consisting of platinum and nickel to form an aryl ether. ... | 12/08/1998 |
| 5847117 | Reagent and catalytic process useful for cleaving a protected functional group The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising a... | 12/08/1998 |
| 5786520 | O-alkylation of phenolic compounds via rare earth orthophosphate catalysts Carbocyclic/aliphatic ethers, for example anisole, quaicol, guaethol, p-methoxyphenol and ethylene dioxybenzene, are selectively prepared, in good yield, by reacting a phenolic compound, for example a phenol, hydroquinone, pyrocatechin, naphthol, or the l... | 07/28/1998 |
| 5633411 | Method for production of allyloxystyrene compounds Allylic styrene ether compounds of the formula: ##STR1## where R1 is an optionally substituted allylic or propargyl hydrocarbon group, and R2, R3, and R4 are independently H, C1-6 hydrocarbon or ... | 05/27/1997 |
| 5393776 | Tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia This invention relates to structurally novel acyclic tocotrienol analogs, which are useful for cholesterol/lipid lowering in cases of hypercholesterolemia and hyperlipidemia, and for atherosclerosis. Also provided are pharmaceutical compositions and a met... | 02/28/1995 |
| 5242996 | Modified epoxy resins having acetylenically unsaturated functions A modified epoxy resin or compound of the formula: ##STR1## wherein A is the backbone reside of a glycidyl ether epoxy resin with removal of the glycidyloxy groups; R1 and R2 are independently a hydrogen atom or C1 -C... | 09/07/1993 |
| 5141970 | Method of forming high-temperature resistant polymers A method of forming high-temperature resistant polymers by a 2 step curing process comprising (a) curing a polymerizable composition at least one aromatic compound having alpha and/or beta instruction which is not substantially reactive under the curing c... | 08/25/1992 |
| 5084490 | Styryloxy compounds and polymers thereof Styryloxy compounds of the formula IV ##STR1## wherein R1 and R2 are H, or one of R1 and R2 is H and the other is methyl; R7 and R8 (which may be the same or different) are H, C1... | 01/28/1992 |
| 4931589 | Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them A compound of formula (I) ##STR1## its isomers and its salts in which R1, R3 and R4 are each independently hydrogen, C1 -C8 -alkyl, C1 -C8 -alkoxy, halogen, C1 -C... | 06/05/1990 |
| 4846998 | Cyclohexane derivatives Cyclohexane derivatives of the formula I in which R1 and R2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH2 groups can also be replaced by O atoms and/or --CO-- groups and/or --CO--O-- groups a... | 07/11/1989 |
| 4847429 | Synthesis of phenylhydroquinones Process is disclosed for the preparation of phenylhydroquinones by the alkylation of hydroquinone (or derivatives thereof) with the cyclohexyl moieties, cyclohexanol or cyclohexene (or derivatives thereof), followed by dehydrogenation of the intermediate ... | 07/11/1989 |
| 4831183 | Conjugated alkadiene telomerization to organooxyalkadienes A process for the telomerization of a conjugated alkadiene with an organic hydroxy compound to produce an organo-oxyalkadiene is disclosed. A palladium catalyst having an ionic ligand is employed in a substantially oxygen-free environment in the presence ... | 05/16/1989 |
| 4825005 | Process for the preparation of aromatic ether and thioether compounds The invention relates to a novel process for the preparation of ether and thioether compounds of formula ##STR1## by reacting compounds of formula ##STR2## with compounds of formula wherein R, R1, X, Y and n are as defined in claim 1,... | 04/25/1989 |
| 4740330 | Method for allylating aromatic hydroxyl-containing compounds The aromatic hydroxyl groups of aromatic hydroxyl-containing compounds can be allylated to greater than 95% conversion by reacting the alkali metal salt of said aromatic hydroxyl-containing compounds with an allyl halide such as allyl chloride in the pres... | 04/26/1988 |
| 4663478 | Process for producing a para-substituted phenol derivative By reacting a phenol compound with an organic halide selected from the group consisting of a haloform, a carbon tetrahalide and a substituted or unsubstituted allyl halide in the presence of an alkali metal hydroxide, using as a catalyst a fixed cyclodext... | 05/05/1987 |
| 4642349 | Process for making aromatic ethers Aromatic ethers or polyethers are prepared by reacting an organic halide such as a hydrocarbon halide with an aryl lower alkyl carbonate in the presence of an initiator.... | 02/10/1987 |
| 4642392 | Conjugated alkadiene telomerization to organo-oxyalkadienes A process for the telomerization of a conjugated alkadiene with an alkanol is disclosed for the production of an organo-oxyalkadiene. A palladium catalyst having a phosphine or stibene ligand is employed in a substantially oxygen-free environment and in t... | 02/10/1987 |
| 4613703 | Process for allylating hydroxyaromatic compounds An isomeric mixture of C- and O-allylated aromatic compounds is prepared by contacting an allyl halide, a hydroxyaromatic reactant, an alkaline agent, water and a quaternary salt catalyst. This mixture may be thermally isomerized to obtain the C-allylated... | 09/23/1986 |
| 4560786 | Ɗ8,9 -Prostaglandin derivatives, their preparation and use as medicinal agents Ɗ8,9 -Prostane derivatives of Formula I ##STR1## wherein R1 is CH2 OH or ##STR2## wherein R2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or R1 is ##STR3## wh... | 12/24/1985 |
| 4523031 | Process for producing a para-substituted phenol derivative By reacting, using as a catalyst a modified or unmodified cyclodextrin, a phenol compound with an organic halide selected from the group consisting of a carbon tetrahalide and a substituted or unsubstituted allyl halide in the presence of an alkali metal ... | 06/11/1985 |
| 4523037 | Process for selectively producing para-substituted derivatives of phenols By reacting, using as a catalyst a modified or unmodified cyclodextrin, a phenol compound with a haloform in the presence of an alkali metal hydroxide, while maintaining the molar ratio of the cyclodextrin to the haloform at 0.5 to 10, a substituent group... | 06/11/1985 |
| 4507492 | Preparation of aromatic derivatives Allyl derivatives of phenols, thiophenols and arylamines are prepared by contacting such aromatic reactant with an allyl lower alkyl carbonate in the presence of a molybdenum, tungsten or Group VIII metal.... | 03/26/1985 |
| 4399301 | Methylenically-substituted undecadienes Methylenically-substituted undecadiene compounds having the structural formula: ##STR1## wherein X is selected from the group consisting of lower acyloxy, aryloxy having from 6 to 14 carbon atoms, lower alkoxy and hydroxy, and R1, R | 08/16/1983 |
| 4393249 | Process for removing alkynes from C4 hydrocarbon mixtures A process for removing alkynes from hydrocarbon mixtures, particularly those containing butadiene by reacting the alkynes with hydroxyl group containing organic compounds in the presence of a silver exchanged ion-exchange resin and separating the products... | 07/12/1983 |
