Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 67 - Preparation of carboxylic acid esters
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
11/1991
11/26/1991US5068053 Liquid crystals for optical apparatus
11/26/1991CA1292479C Process for the manufacture of n-(sulfonylmethyl) formamides
11/26/1991CA1292475C Process for the selective preparation of alkenecarboxylic acid derivatives
11/26/1991CA1292434C Process for racemizing an optically active n-benzylidene amino-acid amide
11/25/1991CA2041950A1 Process for preparing an optically active cyclobutanone, an intermediate in the synthesis of an optically active cyclobutane nucleoside
11/21/1991EP0457494A2 Process for preparing solid particulate dialkylesters from their corresponding dianhydrides
11/21/1991EP0457197A1 Process for preparing unsaturated dicarboxylic acid diesters
11/21/1991EP0457102A2 Bisphenols with a tertiary alkyle ester function, their process of preparation and their use
11/21/1991DE4015541A1 Bisphenol derivs. with tert.-alkyl ester gps.
11/20/1991CN1056301A Recovery of acrylic acid and/or ethyl acrylate from black acid
11/19/1991US5066829 Preparation of carboxylic acid esters
11/19/1991US5066826 Process for racemization of optically active 4-phenylbutanoic acid esters
11/19/1991US5066825 Process for preparing a naphthalene derivative
11/19/1991US5066815 Asymmetric hydrogenation of ketone, ruthenium-phosphine catalyst
11/19/1991US5066801 Preparation of sulfonic acid esters
11/19/1991US5066675 Alkynyl substituent, agricultural use
11/19/1991US5066673 Substituted benzyl 2-phenyl-1-alk(en)ylcyclopropane-carboxylates and the use thereof for controlling pests
11/19/1991US5066427 Eicosatriynoic acid esters and their application in pharmaceutical and cosmetic practice
11/19/1991US5066365 Process for the isolation of vinyl acetate by distillation
11/19/1991CA1292250C Dual function process for isomerization and ring opening of a feed stream containing paraffins and hydrocarbons
11/19/1991CA1292249C Process containing hf alkylation and selective hydrogenation
11/19/1991CA1292246C Process for the preparation of aldehydes
11/19/1991CA1292245C Carboxamides
11/19/1991CA1292244C Hydroxamic acid derivatives and method of using same
11/19/1991CA1292242C Catalytic process for the production of mercaptans from thioethers
11/19/1991CA1292241C Compounds useful as detergent additives for lubricants and lubricating compositions
11/19/1991CA1292239C Cycloalkyl-substituted 4-aminophenyl halo derivatives and process for their preparation
11/19/1991CA1292237C Crystalline modification and its preparation
11/19/1991CA1292236C Process for preparing n-alkylated amino acids and esters thereof
11/19/1991CA1292227C Compositions stabilized with substituted amino carbamates and novel substituted amino carbamates
11/17/1991WO1991018067A1 Countercurrent liquid/liquid extraction to fractionate complex mixtures containing medium and long chain fatty acid triglycerides
11/14/1991WO1991017504A1 Fault tolerant computer system
11/14/1991WO1991017136A1 Citrate ester compositions and processes for their preparation
11/13/1991EP0455906A1 Recovery of acrylic acid and/or ethyl acrylate from black acid
11/13/1991EP0455802A1 Process for the production of aromatic anhydrides and aromatic esters with superior color properties.
11/13/1991CN1056114A Citrate ester composition and processes for their preparation
11/12/1991US5064832 Biaryl compounds
11/12/1991US5064804 Metal vanadates, molybdates, or tungsttes for hydrolysis
11/12/1991US5064761 Process for the manufacture of 4-acylamino-3-hydroxybutyric acid esters
11/12/1991US5064630 Zeolite l preparation
11/12/1991US5064518 Method for the selective alpha halogenation of alkylaromatic compounds
11/12/1991US5064508 Process for the separation of 2-methylalkanals from isomers thereof
11/12/1991US5064215 Safety ski binding
11/12/1991CA2042304A1 Process for preparing 2,2-dimethyl-5-(2,5-dimethylphenoxy)-pentanoic acid
11/12/1991CA1292015C 1-¬N-(.alpha.-AMINO-.alpha.-METHYLACETYL)AMINOPHENYL|-2-AMINOPROPANONE DERIVATIVES
11/12/1991CA1292014C Process for the separation and production of chlorogenic acid
11/12/1991CA1292013C Process for the preparation of acyloxybenzenesulfonic acids and their salts
11/12/1991CA1292010C Process for the preparation of n,n-disubstituted mono- and oligourethanes
11/12/1991CA1292008C Polyhydroxyl compounds containing a sulfonic acid ester group
11/12/1991CA1292006C Process for the production of diisocyanates, selected diisocyanates produced thereby and the production of polyurethane plastics therefrom
11/12/1991CA1292005C Biphenyl hydroxamic acids
11/12/1991CA1292002C Propanol derivatives
11/12/1991CA1291991C Antioestrogenic phenol derivatives
11/12/1991CA1291990C Antiatherosclerotic tetrasubstituted ureas and thioureas
11/12/1991CA1291980C Process for preparing a macrostructural unit having a catalytically-active zeolite surface
11/12/1991CA1291958C Method for eliminating reentry disulfides in a mercaptan extraction process
11/08/1991CA2027221A1 Recovery of acrylic acid and/or ethyl acrylate from black acid
11/06/1991EP0455533A1 Process for the production of benzyl methacrylate and its aromatic ring substituted halogenated and alkylated derivatives
11/06/1991EP0455271A2 Anti-inflammatory compositions
11/06/1991EP0455264A2 Ocular hypotensive agents
11/06/1991EP0455004A1 Process for the preparation of dimethyl ether
11/06/1991EP0454720A1 Process.
11/06/1991EP0454704A1 Process for the production of fatty alcohols.
11/06/1991CN1014606B Continuous preparation method of monoisocyanate or polyisocyanate
11/06/1991CN1014605B Process for preparing nitrile fatty acid and glycerin with glyceride
11/05/1991US5063250 From synthesis gas
11/05/1991US5063037 Zeolites, catalysts !
11/05/1991US5062997 Of unsaturated fatty acids or esters
11/05/1991US5062862 Process and apparatus for recovering a pure substance from a liquid mixture by crystallization
11/05/1991CA1291762C Process for preparing aromatic aldehydes
11/05/1991CA1291756C Certain substituted 3-amino-2-benzoylcyclohex-2- enones
11/03/1991CA2040313A1 Citrate ester compositions and processes for their preparation
11/02/1991WO1991017137A1 Novel monomers and process to synthesize liquid crystalline polyesters
11/02/1991CA2082830A1 Monomers and process to synthesize liquid crystalline polyesters
10/1991
10/31/1991WO1991016322A2 Heterocyclic chiral ligands and method for catalytic asymmetric dihydroxylation of olefins
10/31/1991WO1991016289A1 Recovery of ethylene glycol and dimethyl terephthalate from polyethylene terephthalate
10/30/1991EP0454430A1 Method of purifying polyunsaturated aliphatic compounds and apparatus therefor
10/30/1991EP0453993A1 Process for producing a halomethyl pivalate
10/30/1991EP0453842A2 Fluor subsituted derivatives of alpha-(5-aryloxy-naphthalen-1-yloxy)propionic acid
10/30/1991EP0453841A2 Process for the preparation of esters of 1-alcoxyhexatriene-2-carboxylic acid
10/30/1991EP0437480A4 Method and apparatus for continuous chemical reactions
10/30/1991EP0260300B1 Process for the preparation of styrenated hydroquinone
10/30/1991EP0201607B1 Process for producing aromatic hydroxycarboxylic acid
10/30/1991CN1014516B Phenyl ethers
10/30/1991CN1014514B Method and apparatus for converting methane to higher hydrocarbon products
10/29/1991US5061730 Inhibitors of dehydropeptidase and renal dipeptidase; prevent unnecessary hydrolysis of beta-lactam ring of carbapenem antib iotics
10/29/1991US5061718 Benzothiazolylmethoxy compounds, pharmaceutical compositions comprising the same and their use as anti-inflammatory or anti-allergenic agents
10/29/1991US5061710 Mercapto-acylamino acid antihypertensives
10/29/1991US5061671 Supported noble metal and rhenium
10/29/1991CA1291488C Modified fluorocarbonylimino biurets
10/29/1991CA1291486C Quaternary ammonium salts possessing antimicrobial activity and methods for preparation and use thereof
10/29/1991CA1291485C Process for the preparation of aromatic aldehydes
10/29/1991CA1291471C Extruded zeolite catalysts
10/29/1991CA1291343C Synergistic plant growth regulator compositions
10/23/1991EP0453066A1 Indanderivatives
10/23/1991EP0452411A1 Acid catalyzed process
10/23/1991EP0314717B1 Process for preparing alkyl tetrabromophthalates
10/23/1991CN1014408B Preparation of 4-halogeno-2-oxyimino-3-oxobutyric acid
10/23/1991CN1014405B Process for manufacturing methallyl chloride
10/23/1991CN1014404B Gas-phase fluorination process
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