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Matches 51 - 100 out of 583

Document Document Title
WO2004037757A3
A process for production of tetrahydrofuran, gamma butyrolactone, 1,4 butanediol and the like from a hydrogenatable precursor such as maleic acid, succinic acid, corresponding esters and their mixtures and the like in an aqueous solution...  
WO/2004/043592A1
The invention relates to a method for hydrogenation of carbonyl compounds, in particular C4-dicarboxylic acids for producing mixtures of tetrahydrofuranne and gamma-butyrolactone on supported rhenium-containing catalysts. Said catalysts ...  
WO2003104214A8
The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a g...  
WO/2004/037757A2
A process for production of tetrahydrofuran, gamma butyrolactone, 1,4 butanediol and the like from a hydrogenatable precursor such as maleic acid, succinic acid, corresponding esters and their mixtures and the like in an aqueous solution...  
WO/2004/035543A1
The invention relates to compounds of formula (I) wherein Rl, R2, R3, R4, R5, R6, R7 and R8 are as defined in the description, their use as medicament, pharmaceutical compositions containing them and processes for their preparation.  
WO/2004/033702A1
Microorganisms belonging to the genus Streptomyces and being capable of producing K99−5278A, K99−5278B and K99−5278C, which are drugs efficacious against infection with so−called fungi such as molds and yeasts, are cultured in a ...  
WO/2004/029033A1
A valerolactone compound represented by the formula (I): (I) (wherein R1 and R2 each independently represents hydrogen, methyl, or ethyl; R3 represents hydrogen or methyl; and R4 represents propyl, 1-propenyl, or phenyl; provided that no...  
WO2003060852A3
An osmium-assisted process for the oxidative cleavage of oxidizable organic compounds such as unsaturated organic coumpounds, including alkenes and olefins into aldehydes, carboxylic acids, esters, or ketones. The process uses a metal ca...  
WO2003104214A3
The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a g...  
WO/2004/020424A1
A process for preparing functionalized y-butyrolactones 3 and various biologically active compounds using mucohalic acid 1 and halide 2 in the presence of indium is disclosed, wherein X, Y, RI, R2, and R3 may have any of the meanings def...  
WO/2004/012861A1
The invention relates to the production of lactones by means of the catalytic carbonylation of oxiranes. According to the invention, a catalyst system containing a) at least one carbonylation catalyst A consisting of neutral or anionic t...  
WO/2004/007476A1
The invention relates to 5-thiapethilones and 15-disubstituted epothilones according to formula I (I) with the following meanings: X= >C = O or >S = O R1 = C1-6 alkyl or C2-6 alkenyl R2 = H or C1-6 alkyl Y - Z = >C=C< or >C-O-C< (epoxide...  
WO/2004/007483A1
The invention relates to novel macrocycles of general formula (1) and to the use thereof in the treatment of cancer diseases.  
WO/2004/005273A1
Disclosed is a two-step, continuous hydrogenation process for the preparation of 3-methyl-tetrahydrofuran from alpha-methylene-gamma-butyrolactone, which comprises a first step of subjecting alpha-methylene-gamma-butyrolactone to hydroge...  
WO/2003/104214A2
The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a g...  
WO2003045933A3
The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product i...  
WO/2003/097629A1
The invention relates to novel, unsaturated macrocyclic oxalactone, to the production and utilization thereof as odoriferous substances and to agents containing the macrocyclic oxalactone (I) disclosed in the invention.  
WO2003050154A3
Epoxides, aziridines, thiiranes, oxetanes, lactones, lactams and analogous compounds are reacted with carbon monoxide in the presence of a catalytically effective amount of catalyst having the general formula [Lewis acid]{[QM(CO)x]}y...  
WO/2003/084911A1
The present invention provides a process for selectively converting dihydroxy-or-polyhydroxy alcohols into carbonyl compounds using dioxygen (O2) as oxidant in the presence of a catalytic system comprising (1) a copper salt, a copper sal...  
WO/2003/066617A1
A process for producing a lactone which comprises reacting an amide compound represented by the general formula (I): (I) (wherein X represents halogeno&semi R, R', and R1 to R6 each independently represents hydrogen or any desired substi...  
WO/2003/060852A2
An osmium−assisted process for the oxidative cleavage of oxidizable organic compounds such as unsaturated organic coumpounds, including alkenes and olefins into aldehydes, carboxylic acids, esters, or ketones. The process uses a metal ...  
WO/2003/050154A2
Epoxides, aziridines, thiiranes, oxetanes, lactones, lactams and analogous compounds are reacted with carbon monoxide in the presence of a catalytically effective amount of catalyst having the general formula [Lewis acid]z+&lcub [QM(CO)x...  
WO/2003/045936A1
The invention relates to a method for producing alkyl ketene dimers by reacting carboxylic acid chlorides with tertiary amines in a molar ratio of between 1: 1 and 1: 1.6 at temperatures of between 65 and 150 °C and with a residence tim...  
WO/2003/045933A2
The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product i...  
WO/2003/044007A1
The invention relates to a novel method for the production of chiral, non-racemic 5-substituted &gammad -butyrolactones by reacting compounds of formula (II) wherein R1 respectively represents optionally substituted alkyl, cycloalkyl, ar...  
WO/2003/037841A1
The invention relates to novel mixtures of macrocyclic musk fragrances (5), (10), (11), or (12), to the use of said mixtures in fragrant compositions and to perfumed products that contain said mixtures.  
WO2002051779A3
The invention relates to a method for producing alcohols by catalytically hydrogenating carbonyl compounds with hydrogen or with gases that contain hydrogen in the presence of a hydrogenation catalyst of the Raney type, whereby the catal...  
WO/2003/006445A1
The invention relates to a catalyst for hydrogenating C¿4?-dicarboxylic acids and/or derivatives thereof, preferably maleic acid anhydride, in the gas phase. Said catalyst is characterised in that it contains a) 20-94 wt. % of copper ox...  
WO2001072731A3
This invention provides a process for the arylation of lactones to form to chiral and achiral aryllactones having high enantioselectivity where applicable.  
WO/2002/079180A1
A natural inexpensive acyclic monoterpene ketone (dihydrotagetone) of formula (4), isolated from the oil of Tagetes sp., was smoothly oxidized with meta-periodate/potassium permanganate into 2,6-dimethyl-4-oxo-heptanoic acid of formula (...  
WO/2002/074760A1
A process for producing 5-methylbutyrolactone from levulinic acid utilizing an optionally supported metal catalyst is described. The catalyst has both a hydrogenation and a ring-closing function.  
WO2001098238A3
Ketones and aldehydes are hydrogenated to the corresponding alcohol of alkyl group, using H2 gas as the stoichiometric reductant, and a ruthenium- or iron-containing catalyst precursor having the formula {[CpM(CO)2]2( mu -H+Q-, wherein M...  
WO/2002/055460A1
The invention relates to a method for the distillative processing of the crude products 1,6-hexandiols (HDO), 1,5-pentandiol (PDO) or caprolactone (CLO) obtained according to the method of German patent application DE-A 196 07 954 in ord...  
WO/2002/051779A2
The invention relates to a method for producing alcohols by catalytically hydrogenating carbonyl compounds with hydrogen or with gases that contain hydrogen in the presence of a hydrogenation catalyst of the Raney type, whereby the catal...  
WO/2002/047818A1
The invention relates to a hydrogenation catalyst, particularly suitable for the hydrogenation of maleic anhydride and derivatives thereof to give THF or derivatives thereof. Said hydrogenation catalyst comprises copper oxide and at leas...  
WO/2002/047815A1
The invention relates to a catalyst for the hydrogenation of C¿4? dicarboxylic acids and/or derivatives thereof, preferably maleic anhydride, in the gas phase, characterised in that said catalyst comprises 5 to 100 wt %, preferably 40 t...  
WO2002016345A3
Macrocyclic ester compounds may be produced from oligoesters by thermal cleavage in the presence of a thermostable benzene derivative.  
WO/2002/026725A1
A process for industrially advantageously producing an optically active 3-hydroxy-$g(g)-butyrolactone efficiently and easily. The process for producing an optically active 3-hydroxy-$g(g)-butyrolactone comprises cyclizing an optically ac...  
WO/2002/016345A2
Macrocyclic ester compounds may be produced from oligoesters by thermal cleavage in the presence of a thermostable benzene derivative.  
WO/2002/016346A1
Processes are disclosed for the manufacture of lactones, e.g., caprolactone, from hydoxy acids, e.g., 6-hydroxycaproic acid. The reaction is conducted over a suitable catalyst in the presence of water.  
WO/2002/011720A1
Processes for purifying compounds are disclosed which include reacting (I) a mixture of at least one tocopherol compound or sterol compound, and an alcohol having from about 10 to 30 carbons with (ii) one or more boron-containing compoun...  
WO2001081291A3
Applicants have developed a process for the oxidation of ketones to esters. The process involves contacting a ketone with hydrogen peroxide and a catalyst at oxidation conditions. The catalyst is a molecule sieve represented by the empir...  
WO/2002/000590A1
The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, t...  
WO/2001/098238A2
Ketones and aldehydes are hydrogenated to the corresponding alcohol of alkyl group, using H¿2? gas as the stoichiometric reductant, and a ruthenium- or iron-containing catalyst precursor having the formula {[CpM(CO)¿2?]¿2?($g(m)-H)}?+...  
WO/2001/081289A1
An improved process for the preparation of 3,4-diyhdroxybutanoic acid (1) and salts thereof from a D- or L-hexose source is described. The process uses an alkali metal or alkaline earth metal hydroxide and peroxide oxidizing agent to con...  
WO/2001/081291A2
Applicants have developed a process for the oxidation of ketones to esters. The process involves contacting a ketone with hydrogen peroxide and a catalyst at oxidation conditions. The catalyst is a molecule sieve represented by the empir...  
WO/2001/072731A2
This invention provides a process for the arylation of lactones to form to chiral and achiral aryllactones having high enantioselectivity where applicable.  
WO/2001/068636A1
The invention relates to a method for carrying out a Baeyer-Villiger oxidation of organic carbonyl compounds.  
WO2000078743A3
The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted butyrolactone with an amine. The aminolysis product i...  
WO/2001/044148A1
A process is described for the co-production of a diol product (e.g. butane-1, 4-diol) and a cyclic ether (e.g. tetrahydrofuran) by hydrogenation of an aliphatic diester or lactone feedstock, such as dimethyl or diethyl maleate, which co...  

Matches 51 - 100 out of 583