Patents
Patents for C07C 29 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring (31,270)
02/1998
02/17/1998US5718809 Separation of t-amyl alcohol from 2-methyl-1-propanol by extractive distillation
02/11/1998CN1172792A Method for preparing butanediol from butydiol through two-step catalyzing hydrogenation
02/10/1998US5716499 Separation of 2-methyl-1-propanol from 1-butanol by azeotropic distillation
02/05/1998WO1998004538A1 Catalytic oxygenation of hydrocarbons by metalloporphyrin and metallosalen complexes
02/05/1998DE19630630A1 Treating stream consisting of formaldehyde, methanol, acetylene and water
02/04/1998EP0822250A1 Process for the extraction of 2-phenylethanol
02/04/1998EP0821686A1 Novel porphyrins and porphyrin synthesis techniques
02/04/1998CN1172098A Method and equipment for oxidation of cyclohexane and decomposition of cyclohexyl hydroperoxide
02/03/1998US5714646 Process for producing isopropyl alcohol
02/03/1998US5714645 Process for producing all trans-form polyprenols
02/03/1998US5714644 Process and catalyst for the selective hydrogenation of butynediol to butenediol
02/03/1998US5714643 Mixing aqueous solution of kasugamycin or salt thereof with particles of strongly acidic ion exchange resin, heating to hydrolyze, separating solution from resin, recovering product
02/03/1998US5714639 Double metal cyanide catalysts and methods for making them
02/03/1998US5714602 Decarboxylation of gluconic acid; hydrogenating arabinose; isomerizing arabinitol; separation
02/03/1998US5714429 Supported heteropolyacid catalyst on a silica support formed by flame hydrolysis
02/03/1998CA1339655C Polyols
01/1998
01/29/1998WO1998003459A1 The method of obtaining terephtalic acid and ethylene glycol, particularly from poly/ethyleneterephtalate/wastes and the plant for realisation of this method
01/29/1998WO1998003457A1 Method of producing crystalline d-sorbitol
01/29/1998WO1998003456A1 Process for preparing alcohols and/or aldehydes from olefins
01/29/1998WO1998003451A1 Improved lithium and amine dissolving metal reduction
01/29/1998DE19629906A1 Flexible production of butene oligomers and alkyl tertiary butyl ether(s) from Fischer-Tropsch olefin(s)
01/29/1998CA2261821A1 Process for preparing alcohols and/or aldehydes from olefins
01/29/1998CA2261059A1 Improved lithium and amine dissolving metal reduction
01/28/1998EP0820979A1 Process for the production of arabinitol
01/28/1998EP0820973A1 Process for the preparation of butene oligomers from natural butanes
01/28/1998EP0820809A1 Titanium catalyst, organotitanium reaction reagent, processes for producing these, and method of reaction using these
01/28/1998EP0820439A1 Method for the asymmetrical synthesis of s-acylated derivatives of 2-mercaptomethyl 3-phenyl propanoic acid, and use thereof for synthesising n-(mercaptoacyl) amino acid derivatives
01/28/1998CN1171391A Process for preparation of acetic acid
01/28/1998CN1171388A Process for synthesizing butynediol
01/28/1998CN1037190C Process for producing desulfurized fats and oils or fatty acid esters
01/27/1998US5712403 Phosphonite compounds and their complexes
01/27/1998US5712313 Process for carrying out chemical equilibrium reactions
01/24/1998CA2211306A1 Process for preparing butene oligomers from field butanes
01/22/1998WO1998002513A1 Substantially odor-free polyhydroxyl solvents
01/22/1998WO1998002406A1 Recycle and recovery of useful products from heavy aldol by-products
01/22/1998WO1998002405A1 Process for the separation of 2-alkene-1,4-diols and 3-alkene-1, 2-diols from catalysts
01/22/1998WO1998002404A1 PROCESS FOR THE PREPARATION OF 2-ALKENE-1,4-DIOLS AND 3-ALKENE-1,2-DIOLS FROM η,δ-EPOXYALKENES
01/22/1998WO1998002383A1 Method for manufacturing transition-metal carbides, and their use as catalysts
01/22/1998DE19629369A1 Alcohol and aldehyde preparation with good selectivity for normal isomers by adding single carbon atom
01/22/1998DE19629042A1 Verfahren zur Gewinnung von Terephthalsäure und Äthylenglykol, insbesondere aus Polyäthylenterephthalat-Abfällen und Vorrichtung zur Durchführung des Verfahrens A process for recovering terephthalic acid and ethylene glycol, particularly from polyethylene terephthalate waste, and apparatus for carrying out the method
01/22/1998CA2260101A1 Substantially odor-free polyhydroxyl solvents
01/22/1998CA2259377A1 Method for manufacturing transition-metal carbides, and their use as catalysts
01/21/1998EP0819109A1 Preparation of tetrafluoroethylene
01/21/1998EP0702667B1 Method for preparing difunctional compounds having high enantiomeric purity
01/21/1998CN1170630A Process for reacting organic compound in presence of ruthenium catalyst formed in situ
01/20/1998US5710349 Process for producing diol compounds
01/20/1998US5710299 Production of bridged metallocene complexes and intermediates therefor
01/20/1998US5709781 Separation of 1-butanol from 2-pentanol by extractive distillation
01/20/1998CA2116098C Asymmetric syntheses
01/15/1998WO1998001409A1 Process for the preparation of 4,4,4,-trichlorobutanol
01/15/1998DE19628160A1 Verfahren zur Herstellung von Übergangsmetallcarbiden sowie deren Verwendung als Katalysatoren A process for preparing transition metal carbides and their use as catalysts
01/15/1998CA2257274A1 Process for the preparation of 4,4,4,-trichlorobutanol
01/14/1998CN1170399A Purification of 1, 3-propanediol
01/13/1998US5707920 Alkylation catalysts for alkylation of alcohols to form isobutanol by dehydration
01/08/1998WO1998000383A1 Process for the preparation of cyclohexanedimethanol
01/08/1998WO1998000382A1 Processes for the preparation of optically active ketones
01/08/1998WO1998000375A1 Asymmetric hydrogenation method of a ketonic compound and derivative
01/08/1998DE19624850A1 Butyne-diol preparation from aqueous formaldehyde and acetylene
01/07/1998EP0816321A1 Process for producing 6-methyl-3-hepten-2-one and 6-methyl-2-heptanone analogues, and process for producing phyton or isophytol
01/07/1998EP0816317A1 Process for producing trans-2-bromoindan-1-ol
01/07/1998EP0816316A1 Process for producing 1,2-ethanediol derivatives
01/07/1998EP0815157A1 Process for preparing residues containing dihydroxy compounds
01/07/1998EP0815097A1 Method of producing 1,4-butanediol and tetrahydrofuran from furan
01/07/1998EP0814905A1 IMPROVED Ru, Re/CARBON CATALYST FOR HYDROGENATION IN AQUEOUS SOLUTION
01/07/1998EP0553222B1 Liquid xylitol
01/06/1998US5705715 Oligoesterification; catalytic hydrogenation
01/06/1998US5705707 Preparation of n-butyraldehyde and/or n-butanol
01/06/1998US5705705 Oxidation of alkylaromatic compounds
12/1997
12/31/1997WO1997049659A1 Method for producing xylitol
12/31/1997WO1997049658A1 Method for producing xylitol
12/31/1997WO1997049657A1 Process for recovery and refining of trimethylolethane
12/31/1997CN1168889A Chiral phosphine aminate-metal coordinate compound, the prepn. method thereof and the application in the asymmetrically catalytic hydrogenation
12/31/1997CN1036846C Method for preparing diethers
12/31/1997CA2259003A1 Method for producing xylitol
12/31/1997CA2258866A1 Method for producing xylitol
12/30/1997US5703133 Contacting synthesis gas reactant stream with first stage catalyst of highly dispersed, alkali promoted, lanthanum stabilized, microcrystalline cuprous oxide, then with second stage catalyst of zirconium, manganese, zinc mixed oxide
12/30/1997CA1339611C Cyclopentane derivatives
12/29/1997EP0814098A2 Process for the conversion of an organic compound in the presence of a supported ruthenium-catalyst
12/29/1997EP0813906A2 Process for converting an organic compound in presence of a supported ruthenium catalyst
12/24/1997WO1997048710A1 Iron complexes for bleach activation and stereospecific oxidation
12/24/1997WO1997048667A1 Process for making 2,3-dihalopropanols
12/18/1997WO1997047633A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
12/18/1997WO1997047578A1 Process for improving color of basic metal organic salts by employing c7-c17 alkyl glycidyl esters and stabilizing halogen-containing polymers therewith
12/18/1997WO1997047575A1 Synthesis of haloalkynol
12/18/1997CA2258018A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
12/18/1997CA2257998A1 Synthesis of haloalkynol
12/17/1997CN1168129A 加氢甲酰化方法 Hydroformylation process
12/16/1997US5698749 Pretreating carbon support with oxidizing agent; heating under reducing conditions
12/16/1997US5698744 Process for the selective oxidation of compounds
12/11/1997WO1997046505A1 Process for producing isocamphyl cyclohexanoles
12/11/1997DE19622705A1 Catalysed reaction of organic compounds, especially hydrogenation
12/11/1997CA2256511A1 Process for producing isocamphyl cyclohexanoles
12/10/1997EP0811594A1 Distillation column type production method
12/10/1997EP0810993A1 Reagent, compound and method for nucleophile perfluoroalkylation, and resulting derivatives
12/10/1997EP0810986A1 Method for preparing nootkatone
12/09/1997US5696304 Process for producing alkadienols
12/09/1997US5696303 Process for the preparation of aliphatic α, ω-diols
12/09/1997US5696075 Organoleptic
12/04/1997WO1997045473A1 Absolute molecular weight polymers and methods for their use
12/04/1997WO1997045391A1 Process for preparing optically active alcoholic compounds