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| Number | Title | Issue Date |
| 7235699 | Alkoxy-substituted indanes and the production thereof The present invention relates to alkoxy-substituted indanes, their preparation and use and to the preparation and use of the corresponding alkoxy-substituted indanones. ... | 06/26/2007 |
| 7189885 | Staged process for producing linear 2-phenyl-alkanes The process disclosed herein is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst. The selectivity of the process to 2-phenyl-alkanes can be varied ove... | 03/13/2007 |
| 7060852 | Method for producing alkyl aryl sulphonates The invention relates to a process for the preparation of alkylarylsulfonates by a) reaction of a C4-olefin mixture over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal... | 06/13/2006 |
| 6995127 | Alkyl toluene sulfonate detergent This invention is directed to detergent compositions which employ sulfonated alkyltoluenes as surfactants, wherein the sulfonated alkyltoluenes have a higher content of the sulfonated 2-phenyl alkyltoluenes isomers than was previously available in sulfonated alkylto... | 02/07/2006 |
| 6909023 | Production method for benzenedimethanol compound To provide a novel method for producing a fluorinated benzenedimethanol compound useful as a starting material or an intermediate in the production of agricultural or medicinal chemicals in an industrially advantageous manner. A method for producing a fluorin... | 06/21/2005 |
| 6794547 | Process for the synthesis of aryl alkyl monoethers The invention relates to a process for the synthesis of aryl alkyl monoethers by reaction of a phenol compound, comprising one or more hydroxyl groups attached to the aromatic system, and of a dialkyl carbonate. It is a solvent-free process carried out at a pressure... | 09/21/2004 |
| 6706930 | Process for the preparation of halogenated hydroxydiphenyl compounds There is described a process for the preparation of halogenated hydroxydiphenyl compounds of formula (1) by acylation of a halogenated benzene compound (first stage), etherification of the acylated compound with a halogenated phenol compound, which is not further su... | 03/16/2004 |
| 6586599 | Catalyzed coupling reactions of aryl halides with silanes A process for conducting coupling reactions of aryl halides with unsaturated silanes is described. The processes use N-heterocyclic carbenes as ancillary ligands in these coupling reactions. A coupling of an aryl halide with an unsaturated silane can be c... | 07/01/2003 |
| 6566571 | Method of producing biaryls Process for preparing monofunctional, bifunctional and/or polyfunctional biaryls of the formula (I) Ar--Ar' (I) by reacting haloaromatics of the formula (II) Ar--X (II) with boron compounds of the formula (IIIa), (IIIb) and/or (IIIc) ##STR1## in the presence... | 05/20/2003 |
| 6548722 | Process for the preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula: [(M2-)1-x (M3+)x (OH)2 ]x... | 04/15/2003 |
| 6512147 | Apparatus and process for generating mixed multi-component vapor A mixed liquid of two or more components different in boiling temperature from each other and soluble in or compatible with each other is evaporated into a mixed vapor having a similar composition to that of the mixed liquid by using an apparatus having a... | 01/28/2003 |
| 6479709 | Process for the production of styrene derivative A process for the production of a styrene derivative is provided. The process comprises reacting a Grignard reagent prepared from an aromatic halogen compound with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s... | 11/12/2002 |
| 6472567 | Process for the production of styrene compound, and styrene compound free from biphenyl A process for the production of a styrene compound is provided. The process comprises reacting a Grignard reagent prepared from a tertiary butoxyphenyl halide with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s... | 10/29/2002 |
| 6417410 | Method for producing ortho-alkylated phenols A method for producing ortho-alkylated phenols comprising reacting phenols represented by the general formula (1) with monohydric or dihydric alcohol in the presence of germanium oxide under conditions in which said alcohol is in the supercritical conditi... | 07/09/2002 |
| 6407292 | Preparation of alkylated diphenyl oxides A continuous process for the manufacture of alkylated diphenyl compounds such as diphenyl ether and diphenyl sulfides by alkylating a diphenyl compound such as diphenyl ether with an olefinic alkylating agent by passing a continuous flow of the diphenyl c... | 06/18/2002 |
| 6392111 | Method for producing olefins Olefins containing aromatic substituents are synthesized without the addition of phosphonium salts or phosphanes with the aid of a PdII compound as a catalyst in the presence of nitrogen-containing additives such as N,N-dimethylglycine and a ba... | 05/21/2002 |
| 6339176 | Method for producing 4-methoxymethyl-2,3,5,6-tetrafluorobenzenemethanol It provides a production method of 4-methoxymethyl-2,3,5,6-tetrafluorobenzenemethanol to allow 2,3,5,6-tetrafluoro-1,4-benzenedimethanol to react with an inorganic base in water, and then add dimethyl sulfate and a water-immiscible organic solvent se... | 01/15/2002 |
| 6326520 | Optically active compound and method for producing same The invention relates to a method for producing a novel optically active compound represented by the general formula [IV]. This method includes the step of reacting a vinyl ether with a halogenated acetaldehyde in the presence of an optically active binap... | 12/04/2001 |
| 6291723 | Diolefin/hydroxyaryl condensates and catalyst therefor A catalyst composition comprising trifluoromethanesulfonic acid (also referred to as triflic acid) and a sufficient quantity of a substance (also referred to as a retarder) to decrease but not eliminate the catalytic activity of the acid is disclosed. Als... | 09/18/2001 |
| 6277944 | Alkylated and/or aralkylated polyhydroxy aromatic compounds and processes for their preparation and use Alkylated and/or aralkylated polyhydroxy aromatic compounds prepared by reaction of a polyhydroxy aromatic compound (A) with an alkylene compound (B) at elevated temperature with the addition of a mixture (C) of oxalic acid and boric acid in a molar ratio... | 08/21/2001 |
| 6215035 | Process for the preparation of aralkylated aromatic compounds using heterogeneous catalyst The invention relates to a process for the preparation of aralkylated aromatic compound with both small and large size aralkylating agents; wherein the catalyst used is heterogeneous solid catalyst removable from the reaction products by simple filtration... | 04/10/2001 |
| 6215029 | Process for the preparation of halogenated hydroxydiphenyl compounds A process for the preparation of halohydroxydiphenyl compounds useful for protecting organic materials and articles from microorganisms, of the formula ##STR1## by acylation of a halogenated benzene compound (first stage), etherification of the acyla... | 04/10/2001 |
| 6127511 | Preparation process of phenol aralkyl resins A preparation process of phenol aralkyl resin from phenol compound and aralkyl compound by controlling the temperature of reaction mass in the range of 70 to 240° C. and simultaneously controlling the temperature of vapor phase potion and vapor-liquid in... | 10/03/2000 |
| 6084132 | Fluorescent dyes Fluorescent dyes which fluoresce in a variety of colors are produced from substituted and un-substituted 6-ring and 8-ring aromatic diketones by reductive alkylation with alkyl halides in the presence of zinc.... | 07/04/2000 |
| 6063940 | Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof A 1-bromoalkylbenzene derivative is prepared by reacting a phenylalkene derivative with hydrogen bromide in the presence of a non-polar solvent. The phenylalkene derivative is prepared by reacting an alkenyl halide with metal magnesium to form a Grignard ... | 05/16/2000 |
| 5831102 | Chemiluminescent 3-(substituted adamant-2'-ylidene) 1,2-dioxetanes Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally clea... | 11/03/1998 |
| 5792886 | Production of racemic 2-(6-methoxy-2-naphthyl) propionic acid of precursors thereof In producing (&#b1;)-2-(6-methoxy-2-naphthyl)propionic acid or precursor thereof from 2-bromo-6-methoxynaphthalene, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl chloride in a solvent comprising one o... | 08/11/1998 |
| 5616713 | Process of preparing 2-hydroxymethyl-3,5-dimethyl-4-methoxypyridine A process of preparing 2-hydroxymethyl-3,5-dimethyl-4-methoxypyridine including the steps of acylating 2-methyl-1-penten-1-alkoxy-3-one to obtain 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone; ammonolyzing 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone to obtain 2-... | 04/01/1997 |
| 5602283 | Multi-stage process for preparing N-alkyl-3,4-dialkyl-2,6-dinitroanilines A multistage process of preparing N-alkyl-3,4-dialkyl-2,6-dinitroanilines starts from 3,4-dialkyl phenol and goes through the stages of 3,4-dialkyl-2,6-dinitrophenol and 3,4-dialkyl-2,6-ditro alkoxybenzene, wherein the latter are new compounds.... | 02/11/1997 |
| 5552071 | Alkylated diphenyl ether lubricants Monoalkylated diphenyl oxides are high-temperature stable lubricant fluids having excellent low temperature viscometrics, and excellent additive solubility. These monoalkylated products are obtained by the alkylation of diphenyl oxide using, for example, ... | 09/03/1996 |
| 5396011 | Catalytic alkylation of aromatic compounds with alkenes An aromatic compound (such as benzene) is alkylated with a alkene (such as propylene) by contacting the two compounds together in the presence of a tungsten on zirconia catalyst. The reaction preferably takes place at elevated temperature and elevated pre... | 03/07/1995 |
| 5352845 | Process for manufacture of optically active saturated compounds A process for manufacturing an optically active saturated compound of the general formula (25): ##STR1## wherein R20 represents a group for protecting a hydroxy group, R21, R22, and R23 independently repres... | 10/04/1994 |
| 5344997 | Alkylation of aromatics using a fluorided silica-alumina catalyst A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce line... | 09/06/1994 |
| 5340483 | Two step process for conversion of a weakly adsorbable compound to a strongly adsorbable compound and selective removal thereof A method for the selective separation of a particular compound from a mixture of compounds, by enzymatically converting a weakly adsorbable compound to a strongly adsorbable compound, and binding the converted compound to a material of appropriate chemica... | 08/23/1994 |
| 5276194 | Polyfluoroalkylation of aromatic compounds A process is provided for the catalytic perfluoroalkylation of aromatic compounds, wherein a perfluoroalkyl iodide or mixture of iodides is reacted with an aromatic compound in the presence of an aqueous base, such as an alkali metal hydroxide or carbonat... | 01/04/1994 |
| 5262552 | Optically active compounds and intermediates thereof, and process for manufacturing same An optically active (S)- or (R)-pentane compound of the general formula (11): ##STR1## wherein R11, R12 and R13 independently represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, R14... | 11/16/1993 |
| 5235115 | Preparation of 2-alkoxy-6-ethylnaphthalenes A method for the selective ethylation of 2-alkoxy-naphthalene compounds at the 6 position of the naphthalene nucleus is disclosed.... | 08/10/1993 |
| 5157158 | Alkylation of aromatic hydrocarbons A process is described for the alkylation of benzene (in general, aromatic hydrocarbons), with C2 -C20 monoolefins in the presence of an aluminum-magnesium silicate catalyst, to give linear alkylbenzenes of detergent range, basic pro... | 10/20/1992 |
| 5072017 | Process for the preparation of P-substituted O-benzylphenols Para-substituted o-benzylphenols are prepared by reacting p-substituted phenols with benzylating agents in the presence of zeolites of the faujasite type at elevated temperature.... | 12/10/1991 |
| 5004841 | Alkylation of aromatic compounds to alkylates enriched in the linear-substituted isomers Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of ... | 04/02/1991 |
