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Matches 151 - 200 out of 583

Document Document Title
WO/1993/018653A1
Inhibition of renal cancer, melanoma, colon cancer, lung cancer and leukemia cells by administration of compounds from the bafilomycin and hygrolidin groups of compounds.  
WO/1993/016042A1
The invention relates to a process for producing pyrrolidone and N-alkyl pyrrolidones from saturated or unsaturated 1.4-bicarboxylic acids and their anhydrides, hydrogen and a primary amine or ammonia, in which the bicarboxylic acid or i...  
WO/1993/002068A1
This invention provides a vapor phase process for the production of gamma-butyrolactone and tetrahydrofuran in a predetermined ratio by the steps of hydrogenating a vapor mixture of maleic anhydride and excess hydrogen over a first bed o...  
WO/1993/002069A1
This invention relates to a process for the recovery of purified gamma-butyrolactone (BLO) in high yield from its crude reactor effluent containing BLO, tetrahydrofuran (THF), water, the acid-catalyzed hydrolysis product of BLO which is ...  
WO/1992/014720A1
A 4-substituted gamma-lactone is produced by introducing a 1-alkynyl group into the 1-carbon atom of 2,3-O-isopropylidene-D-ribofuranose, cleaving the resulting compound at the diol part to give a lactol, oxidizing it into a lactone, hyd...  
WO/1992/012143A1
A process for producing cis-whiskey-lactone represented by formula (A), which is one of the flavoring components of whiskey or wine, selectively and readily, which comprises hydrolyzing the lactone part of trans-whiskey-lactone with pota...  
WO/1992/010487A1
A convenient stereoselective process for the preparation of alpha-alkylidene-substituted-gamma-butyrolactones and delta-valerolactones is provided. The process involves reacting an alpha-acyl lactone, an aldehyde, and an alkali metal hyd...  
WO/1992/009590A1
Process for the preparation of alpha-alkyl lactones by the steps of first reacting an alpha-acyl lactone, an aldehyde, and an alkali metal hydroxide together to form an alpha-alkylidene lactone, and then hydrogenating the alpha-alkyliden...  
WO/1992/000973A1
A process is provided for the production of lactones by the catalytic dehydrogenation of aliphatic diols containing from 3-7 carbon atoms and optionally one or more ether linkages in the diol chain. The reaction is conducted in the liqui...  
WO/1991/016318A1
What is provided herein is a vapor phase process for the production of butyrolactone in which the vapor mixture of the feed compound and hydrogen is provided at high flow rates from finely divided droplets of the feed compound which are ...  
WO/1991/016132A1
Vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone is achieved in a conversion of 95 % or more and a selectivity of 80 % or more during a prolonged period of production. The process of the invention uses an ac...  
WO/1991/001964A1
Carboxylic acid esters are produced from the corresponding C2 to C12 carboxylic acids or anhydrides by hydrogenation at elevated temperature, in the presence of a catalyst comprising (a) an alloy of a Group VIII noble metal and (b) an ox...  
WO/1990/014344A1
A method for converting 1,4 and 1,5 aliphatic saturated diols to lactones is disclosed wherein the diol is reacted with a chemical oxidizing agent and a ruthenium containing catalyst at temperatures substantially less than 200°C. The re...  
WO/1990/000431A1
The invention relates to a process which comprises treating butyrolactone in at least 95 % purity with an acid to convert and remove color forming impurities for product stabilization.  
WO/1988/000937A1
A process for the co-production of butane-1,4-diol and gamma-butyrolactone which comprises: (a) esterifying maleic anhydride by reaction with an alkyl alcohol to form the corresponding dialkyl maleate; (b) hydrogenating resulting dialkyl...  
WO/1986/007358A1
Gamma-butyrolactone is produced by vapour phase hydrogenolysis of an alkyl ester of a C4 dicarboxylic acid, e.g. diethyl maleate, over a reduced Cu-Cr or Cu-Zn mixed oxide catalyst. Two adiabatic hydrogenolysis zones are used. The mixtur...  
WO/1983/001072A1
Optically active gamma-decalactone is produced by culturing a microorganism capable of hydrolyzing castor oil and effecting beta-oxidation of the resulting hydrolysate in the presence of castor oil or castor oil hydrolysate and a co-oxid...  
JP5779142B2  
JP5297185B2
This invention relates to cationically curable sealants that provide low moisture permeability and good adhesive strength after cure. The composition consists essentially of an oxetane compound and a cationic initiator.  
JP5187929B2  
JP5156372B2  
JP2012229232A
To provide a method for the synthesis of functionalized and unfunctionalized olefins via cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ru...  
JP5026639B2  
JP4934025B2  
JP4933011B2
A process is described for the co-production of maleic anhydride and at least one C4 compound selected from butane-1,4-diol, gamma -butyrolactone, and tetrahydrofuran in which maleic anhydride is produced by partial oxidation of a C4 hyd...  
JP4933037B2
A process is described for the co-production of maleic anhydride and at least one C4 compound selected from butane-1,4-diol, gamma -butyrolactone, and tetrahydrofuran in which maleic anhydride is produced by partial oxidation of a C4 hyd...  
JP4892152B2  
JP4832306B2  
JP4800927B2  
JP4741776B2  
JP2011105762A
To provide a method for preparing 1-hydroperoxy-16-oxabicyclo[10.4.0]hexadecane (DDP-OOH).The method for preparing 1-hydroperoxy-16-oxabicyclo[10.4.0]hexadecane (DDP-OOH) includes reacting 13-oxabicyclo[10.4.0]hexadec-1(12)-ene (DDP) wit...  
JP2011074076A
To mediate the catalyst activity of a catalyst system used for carbonylation of epoxides by modifying a cation thereof, and to provide a new approach by the use of a cationic Lewis acid as a cation in the catalyst system.Epoxides, azirid...  
JP4648327B2  
JP4634797B2  
JP4625470B2  
JP4608318B2  
JP4608216B2  
JP4555475B2  
JP4533469B2  
JP4469606B2  
JP4390394B2  
JP4323271B2  
JP4268335B2  
JP4205857B2  
JP4177252B2
A catalyst (I) for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride, comprises copper oxide (20-94 wt.%), palladium and/or a palladium compound (0.005-5 wt.%) and an oxide support ...  
JP4149808B2  
JP4152460B2  
JP4130361B2  
JP4123525B2  
JP4107396B2  

Matches 151 - 200 out of 583