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| Number | Title | Issue Date |
| 6905669 | Compositions and methods for reestablishing gene transcription through inhibition of DNA methylation and histone deacetylase Compositions and methods are provided for treating diseases associated with aberrant silencing of gene expression such as cancer by reestablishing the gene expression through inhibition of DNA hypomethylation and histone deacetylase. The method comprises: administer... | 06/14/2005 |
| 6660812 | Production of olefin derivatives Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product is recovered from the reaction unit while a vent stream is... | 12/09/2003 |
| 6610219 | Functional materials for use in optical systems Functional optical materials for optical systems that are typically useful in optical waveguides, optical switching systems, optical modulators, optical computing systems and the like. Included are polymer systems and electrooptical chromophores. Polymers... | 08/26/2003 |
| 6406680 | X-ray contrast agents This invention describes a new type of X-ray contrast agents. It has been found that iodinated alkenes containing one or several C.dbd.C double bonds substituted with electronic neutral substituents and iodine can be used as X-ray contrast agents. Also ne... | 06/18/2002 |
| 6403789 | Method of halogenating hydroxyl group A halogenating agent of the formula (1) and a method of halogenating hydroxyl group ##STR1## wherein R1 and R2 are the same or different and are each ethyl, propyl, isopropyl, butyl, isobutyl or allyl; X is chlorine atom or bromine ... | 06/11/2002 |
| 6388151 | Synthesis of Tetraalkylcyclopentadienes A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid ... | 05/14/2002 |
| 6271280 | Diacetylenic polyorganosiloxanes, intermediates therefor, and cured compositions prepared therefrom Intermediate compositions comprising ethynylorgano polyorganosiloxanes are prepared by hydrosilylation of an olefinic hydroxy compound followed by reaction with a propargyl halide, or by hydrosilylation of a diethynyl compound. The intermediate compositio... | 08/07/2001 |
| 6153648 | Iodopropargylamine compounds, and industrial antimicrobial and antifungal agents, algicides, and antifouling agents containing the same Iodopropargylamine compound of the general formula (1): ##STR1## wherein R1 and R2 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, or R1 and R2 combine with each o... | 11/28/2000 |
| 6087535 | Process for chloroalkynes and alkynyl amines This invention provides an improved process for the preparation of chloroalkynes from alkynyl alcohols. The chloroalkynes can be employed to prepare alkynyl amines which are useful for the manufacture of biologically active materials. The present inventio... | 07/11/2000 |
| 5929287 | Chlorination of substituted alkenes using trichloroisocyanuric acid This invention relates to a process for the selective monochlorination or dichlorination of certain substituted alkenes using trichloroisocyanuric acid. The chlorinated alkenes can be easily hydrolyzed to provide -monochloroketones or , ... | 07/27/1999 |
| 5731481 | Process for the manufacture of 1,1,1,2-Tetrafluoroethane The invention relates to the manufacture of 1,1,1,2-tetrafluoroethane (F134a) by gas-phase catalytic fluorination of 1-chloro-2,2,2-trifluoroethane (F133a). A mixed catalyst is employed, composed of nickel and chromium oxides, halides and/or oxyhalides de... | 03/24/1998 |
| 5723703 | Purification of allyl chloride A process for the removal of (cyclo)aliphatic hexene and hexadiene isomers from allyl chloride, characterized by a chlorination step which is performed in the liquid phase.... | 03/03/1998 |
| 5545388 | Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph... | 08/13/1996 |
| 5504173 | Chemical process Process for preparing the (E)-isomer of a compound (II) by contacting the (E) or (Z) isomer of the 2-methylphenyl precursor, or a mixture of both, with bromine in an organic solvent, in the presence of a polymeric base and light. ##STR1##... | 04/02/1996 |
| 5478548 | Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph... | 12/26/1995 |
| 5334789 | Oxychlorination catalyst process for preparing the catalyst and method of oxychlorination with use of the catalyst Disclosed are an oxychlorination catalyst comprising a carrier material, and a palladium compound, a copper compound and a vanadium compound which are supported on the carrier material; an oxychlorination catalyst comprising a carrier material, and a pall... | 08/02/1994 |
| 5332791 | Polyisobutylene hydrocarbon or polymer containing a double bond allylic to an end amino group Hydrocarbons and polymers thereof, of the structure (I) R--C(CH3)2 --CH2 --C(CH3)2 --CH2 --CH.dbd.CH--CH2 --Cl (I) where R is a hydrocarbon radical, are prep... | 07/26/1994 |
| 5292973 | Phosphine oxide removal from compounds formed by a Wittig reaction An improvement is proposed for the removal of the precipitates of a phosphine oxide compound as a by-product from a mixture thereof with an olefin compound obtained by the Wittig reaction for the preparation of the olefin compound from a phosphorane compo... | 03/08/1994 |
| 5283383 | Antitumor compound, compositions and method of use The present invention relates to a new antitumor compound, a method for isolating same from a red alga, antitumor compositions containing same and methods of using same for treating patients with cancer. The compound of the present invention is 6(R)-... | 02/01/1994 |
| 5247124 | Process for the preparation of substituted styrenes A process for preparing a substituted styrene by reacting a bisarylalkyl ether in the presence of an acid catalyst is disclosed. The process is preferably used for the preparation of 4-acetoxystyrene from 4,4'-(oxydiethylidene)bisphenol diacetate and 4-me... | 09/21/1993 |
| 5243109 | Tribromostyrene products and process for making them Tribromostyrene (TBS) is produced by the preparation of a TBS precursor, which is ଲ-bromoethyl-tribromobenzene (ଲ-BrBr3), and the successive elimination of hydrogen bromide from said precursor. The precursor is prepared by selective... | 09/07/1993 |
| 5175382 | Preparation of 1,2-Dichloroethane 1,2-Dichloroethane is prepared by reacting ethylene, hydrogen chloride and oxygen or an oxygen-containing gas in the presence of a copper-containing catalyst by a process in which first hydrogen chloride and oxygen or an oxygen-containing gas are reacted ... | 12/29/1992 |
| 5091603 | Process for the preparation of trichloroethylene In the process, a copper/rhodium catalyst impregnated with 0.1 to 10.0% by weight, based on the total weight of active charcoal catalyst support and active components, of a water-soluble phosphonium halide is employed for the preparation of trichloroeleth... | 02/25/1992 |
| 5073659 | Process for the preparation of terpenes A terpene compound having the formula (III) is produced by reacting an allylic halide having the formula (I) with a Grignard reagent having the formula (II) in the presence of anhydrous zinc chloride and a copper compound or an organic zinc halide compoun... | 12/17/1991 |
| 5055622 | Novel tetrahydronaphthalene and indane derivatives Novel Styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.... | 10/08/1991 |
| 5030765 | Novel tetrahydronaphthalene and indane derivatives The present invention is concerned with novel tetrahydronaphthalene and indane derivatives of the formula ##STR1## useful as for combatting dermatoses as well as neoplasmas.... | 07/09/1991 |
| 5030764 | Novel tetrahydronaphthalene and indane derivatives Novel styryl-tetrahydronaphthalene and indane derivatives useful for treating neoplasms and dermatoses.... | 07/09/1991 |
| 5001276 | Novel tetrahydronaphthalene and indane derivatives Novel styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.... | 03/19/1991 |
| 4990703 | Novel tetrahydronaphthalene and indane derivatives Novel styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.... | 02/05/1991 |
| 4935560 | Novel tetrahydronaphthalene & indane derivatives Novel styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.... | 06/19/1990 |
| 4933488 | Triisobutylene alcohols and esters, uses thereof in perfumery and halogenated intermediates useful for preparing same Described are triisobutylene alcohols and esters and halogenated intermediates for preparing same defined according to the generic structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the da... | 06/12/1990 |
| 4924026 | Triisobutylene alcohols and esters, uses thereof in perfumery and halogenated intermediates useful for preparing same Described are triisobutylene alcohols and esters and halogenated intermediates for preparing same defined according to the generic structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the da... | 05/08/1990 |
| 4918252 | 1-halo-(Z,E)-7,10-dodecadiene and a method for the preparation thereof A novel and efficient synthetic route is proposed for the preparation of (Z,E)-9,12-tetradecadienyl acetate as a sex pheromone compound used for population control of the pest insects belonging to the genus of Spodoptera via an intermediate 1-halo-(Z,E)-7... | 04/17/1990 |
| 4870219 | Novel tetrahydronaphthalene and indane derivatives Novel styryl-tetrahydromaphythalene and indane derivatives useful for treating neoplasms and dermatoses.... | 09/26/1989 |
| 4827056 | Process for preparing chlorinated olefins Chlorinated olefins of general formula (I), ##STR1## wherein R is an alkyl, aralkyl, or alkenyl group substituted or not substituted by a lower acyloxy, lower alkyloxy, alkenyloxy or benzyloxy group, are prepared by the reaction of hypochlorous acid,... | 05/02/1989 |
| 4818442 | Disproportionation process A process for the disproportionation of olefins comprising contacting said olefins under suitable reaction conditions with a neutral-carbene complex catalyst and then using anhydrous ammonia to effect separation of the catalyst and the organic products.... | 04/04/1989 |
| 4804763 | Method for preparing chlorine-containing derivatives of pyridine compounds The reactions of chlorination of the pyridine compounds are conducted by means of molecular chlorine, with the use, as free-radical forming initiator, of a decachlorobutane or an octachlorobutene such as octachlorobutene-1 or a crude mixture of these chlo... | 02/14/1989 |
| 4734524 | Synthetic pheromone 8-methyl-2-decanol propanoate A pheromonal compound produced by the western corn rootworm has been identified as 8-methyl-2-decanol propanoate (8-M-2-DP) having the structural formula: ##STR1## A synthesis has been devised for racemic 8-M-2-DP which demonstrates activity tow... | 03/29/1988 |
| 4713458 | Preparation of ethenylidenes Ketones and aldehydes are converted to ethenylidene-containing compounds by reaction thereof with dimethyl carbonate and a phosphine compound.... | 12/15/1987 |
| 4686310 | 2-isopropenyl-5-methylcyclopentanealkanols derivatives and organoleptic uses or same Described are the 2-isopropenyl-5-methylcyclopentanealkanols and esters thereof having the generic structure: ##STR1## wherein R1 represents hydrogen or C2 -C3 acyl and wherein n represents 0 or 1 and uses thereof in ... | 08/11/1987 |
