Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
05/1990
05/16/1990EP0368429A2 Fluor-substituted benzene derivatives
05/16/1990EP0368363A1 Monoacetal of glyoxal
05/16/1990EP0367876A1 Stable isopropenyl acetophenone solutions
05/16/1990EP0243313B1 Acyl-cyclohexane diones and their oxime ethers exhibiting a herbicidal and plant growth activity
05/16/1990EP0228675B1 New phenylacetaldehydes and a process for the production of phenylacetaldehydes
05/16/1990EP0208755B1 Thromboxane antagonists in the treatment of hormone-dependent neoplasias
05/16/1990EP0192767B1 Derivatives of diphenylhexafluoropropane
05/16/1990CN1007973B Improved dehydrogenation process for producing styrene by phenylethane
05/15/1990US4925996 Production of gasoline and distillate boiling range hydrocarbons
05/15/1990US4925995 Catalytic oligomerization, separating effluent, recycling
05/15/1990US4925994 Process for the ring chlorination of aromatic hydrocarbons
05/15/1990US4925991 Preparation of dien-1-ols, 9-hydroxydodec-10-enyl 1-tert-butyl ether and use thereof as an intermediate for synthesizing 8,10-dodecadienol
05/15/1990US4925990 Hydrogenation of aldehyde or ketone, ruthenium catalyst
05/15/1990US4925981 Method of isolating methacrylic acid
05/15/1990US4925980 Process for producing methacrylic acid and a catalyst
05/15/1990US4925977 Catalytic oxidation of diisopropylnaphthalene
05/15/1990US4925976 Olefin sulfonation method
05/15/1990US4925975 Method of preparing alkali metal fluoroalkylsulfonates of high purity
05/15/1990US4925974 Reacting partially blocked polyisocyanate with polyamine; isolating
05/15/1990US4925973 Preparation of diesters of hexenedioic acid
05/15/1990US4925972 Recycling of cobalt carbonyl catalyst; esterification of 1,3-butadiene, carbon monoxide, and alkanol
05/15/1990US4925966 Process for producing trifluorobenzene compounds
05/15/1990US4925958 Chemical intermediates for drugs and biocides
05/15/1990US4925956 Novel process for manufacturing optically active carbacyclin intermediates
05/15/1990US4925879 Antidepressants
05/15/1990US4925876 N-benzolyl-N'-trihalo-haloalkoxyphenylureas and pesticidal compositions containing them
05/15/1990US4925874 Novel cyclopropane carboxylates
05/15/1990US4925823 Process and catalyst for the preparation of methacrylic acid
05/15/1990US4925658 Treatment of dermatologic, rheumatic, respiratory, ophthalmologic disorders
05/15/1990US4925642 Process for the preparation and the isolation of aromatic nitriles
05/15/1990US4925587 Cleaning compounds/antifoam
05/15/1990US4925565 Process for extracting and disposing of nitrophenolic by-products
05/15/1990US4925535 Process for the production of an aromate concentrate suitable for use as blending component for gasification fuel
05/15/1990US4925459 Using molecular sieve zeolite
05/15/1990US4925278 Electrooptics
05/15/1990CA1269111A1 Benzoylurea compounds and their production and use
05/14/1990EP0368946A4 1,2-dioxetanes.
05/09/1990EP0367743A2 Process for the preparation of branched 1,3-glycols and their monoesters
05/09/1990EP0366973A1 New 4-substituted anthracyclinones and anthracycline glycosides and the process for preparing them
05/09/1990EP0366808A1 Method of crystallization and purification for obtaining stable crystalls of tetrakis 3-(3,5-di-tertiary-butyl-4-hydroxyphenyl)propionyloxymethyl- methane on an industrial scale
05/09/1990EP0267488B1 Process for the preparation of monomeric alpha-cyanoacrylates
05/09/1990EP0247159B1 Process for the co-production of aromatic carboxylates and alkyl iodides
05/08/1990US4924030 Process for preparing cyclic terpenoids
05/08/1990US4924025 Novel dihydroxy compound
05/08/1990US4924014 Process for the preparation of halogen-containing aromatic compounds
05/08/1990US4923999 Optically active borane complex and a method for producing an optically active alcohol derivative by the use thereof
05/08/1990US4923889 Cardiovascular disorders
05/08/1990US4923888 Antiulcer agents
05/08/1990US4923882 Novel amine derivatives, salts thereof and an anti-ulcer agent containing the same
05/08/1990US4923881 Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same
05/08/1990US4923840 Mixture of platinum complex containing phosphorus and organotin compound
05/08/1990US4923835 Catalyst of aluminosilicate type containing at least one noble metal and its use for isomerizing a C8 aromatic cut
05/08/1990US4923580 A, a-dibromoalkylarenes, hydrogen bromide, hydrogen peroide
05/08/1990US4923505 Herbicides
05/08/1990CA1268891A1 Process for the production of blocked polyisocyanates containing carbodiimide groups, the polyisocyanates obtainable by this process and their use for the production of plastics
05/08/1990CA1268784A1 Process for the production of alkylene glycols with metalate-containing solids
05/08/1990CA1268783A1 Hydrolysis of olefin oxides to glycols
05/08/1990CA1268782A1 Process for the preparation of tribromotetramethylbiphenol and related compounds
05/08/1990CA1268781A1 Preparation of disecondary amines from diolefins and primary amines
05/08/1990CA1268778A1 Process for producing 4-ring-substituted phenyl lower alkyl ketones
05/08/1990CA1268777A1 Manufacture of butanedicarboxylic acid esters
05/08/1990CA1268776A1 Rhodium catalysts and methods of preparation and use thereof
05/08/1990CA1268773A1 Process for the preparation of glyoxal monoacetals
05/08/1990CA1268762A1 Thiation process
05/08/1990CA1268761A1 Method of carrying out chemical dehydration reaction and an apparatus therefor
05/03/1990WO1990004601A1 New 4-substituted anthracyclinones and anthracycline glycosides and the process for preparing them
05/02/1990EP0366390A2 Ruthenium-phosphine complexes
05/02/1990EP0366084A1 Process for the treatment of quaternary onium salts and its application to the preparation of hexafluoropropylene oxide
05/02/1990EP0366059A2 Carbocyclic nucleoside analogs
05/02/1990EP0365973A1 Process for preparing 4-0-alkyl-rhodomycins
05/02/1990EP0365777A1 Process for the preparation of high boiling acrylates or methacrylates
05/02/1990EP0261668B1 Process for the preparation of 4-alkoxy-2(5h) thiophenones
05/02/1990EP0236348B1 Carbonylation process for the production of aromatic acids
05/02/1990EP0226642B1 Benzoylurea derivatives, process for their preparation, and insecticides
05/02/1990EP0173714B1 Preparation of optically active 1,3-dioxolane-4-methanol compounds
05/02/1990CN1041776A Mesogens and polymers with mesogens
05/02/1990CN1041761A Transition metal complex catalyzed precursor composition
05/02/1990CN1041754A Syntheses of 3,3', 4,4'-biphenyltetracarboxylic acid and derivatives thereof
05/02/1990CA2001968A1 Process for the preparation of branched 1,3-glycols and their monoesters
05/01/1990US4922052 (Vinylphenyl)phenylmethane and method for producing (benzoylphenyl) propionic acid
05/01/1990US4922041 Method for producing CF3 I
05/01/1990US4922031 Biphenyldisulfonic acid, alkali metal hydroxide
05/01/1990US4922029 Etherification of polyoxyalkylene derivatives
05/01/1990US4922027 Acid cyclization of enol esters
05/01/1990US4922022 Substituted 3,4-dihydroxy phenylethylamino compounds
05/01/1990US4922021 New alkylene diamine derivatives
05/01/1990US4922019 Derivatives of 2,2-bis-(3-aminophenyl)hexafluoropropane and process for the preparation of 2,2-bis-(3,4-diaminophenyl)hexafluoropropane
05/01/1990US4922016 Process for the preparation of N-(sulfonylmethyl) formamide compounds
05/01/1990US4922015 Synthesis of peptide amides by means of a solid phase method using acid-labile anchoring groups
05/01/1990US4922014 Process for the preparation of oxethylmercaptobenzaldehydes and their oxidation products
05/01/1990US4922011 Method for purifying aspartic acid
05/01/1990US4922010 Processes for preparing 2-substituted propionic acid and derivatives thereof
05/01/1990US4922009 Stereoconvergent process for preparing optically active carboxylic acids
05/01/1990US4922008 Process for the production of 4-nitrotoluene-2-sulfonic acid
05/01/1990US4922004 Copolymerizable photoinitiators
05/01/1990US4922003 Bisacrylate monomers and polymers exhibiting nonlinear optical response
05/01/1990US4922001 Chiral synthesis units from prochiral glycerol
05/01/1990US4922000 Production of dialkyl (phenylenedioxy) diacetates
05/01/1990US4921999 Method for making tertiary butyl esters
05/01/1990US4921998 Substituted amino-5,6,7,8-tetrahydronaphthyl-oxyacetic acids, processes for their preparation and their use as medicaments