Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 315 - Preparation of sulfones; Preparation of sulfoxides
Patents for C07C 315 - Preparation of sulfones; Preparation of sulfoxides (4,234)
12/1990
12/22/1990CA2035036A1 Process for the preparation of phenyl-guanidine derivatives
12/22/1990CA2019495A1 Palladium-based catalyst and its use
12/21/1990WO1990015794A1 Novel stereoisomers
12/21/1990WO1990015793A1 Novel polystyrenesulfonate
12/21/1990CA2059282A1 Polystyrenesulfonate
12/21/1990CA2058941A1 Stereoisomers
12/12/1990EP0402048A1 Improved process for preparing benzenesulfonate salts
12/12/1990EP0401946A2 Allyl esters of substituted phenylacetic acid and their use as pesticides
12/12/1990EP0401603A1 1,4"-(Bishalophenylsulfone) terphenyl
12/11/1990US4977263 Process for preparing 1,8-bridged 4-quinolone-3-carboxylic acid antibacterials
12/09/1990CA2015527A1 1, 4"-(bishalophenylsulfone) terphenyl
12/06/1990CA2017874A1 Mproved process for preparing benzenesulfonate salts
11/1990
11/22/1990EP0398774A1 Process for the preparation of brominated derivatives from alcohols
11/15/1990WO1990013537A1 Process for the production of alkane sulphonyl benzoic acids
11/14/1990EP0280725B1 Improvement for processes for preparing diaryl sulfones
11/08/1990DE3914390A1 Verfahren zur herstellung von alkansulfonylbenzoesaeuren A process for preparing alkanesulfonylbenzoic acids
11/06/1990US4968845 Catalytic reaction of halobenzene with aromatic diacyl halide
11/06/1990US4968433 Absorption with tr5initroarenol or trinitroarylsulfonic acid
11/02/1990CA2015791A1 Process for the preparation of brominated derivatives, especially from alcohols
10/1990
10/31/1990CN1046523A Fungicides
10/30/1990US4966998 Trisubstituted benzoic acid intermediates
10/30/1990US4966731 Process for preparing sulfonyl acids
10/30/1990CA1275657C Processes for preparing diaryl sulfones
10/24/1990EP0280992B1 Cyclohexene carboxylic-acid esters, process for their preparation and their use
10/16/1990US4963578 Organic compounds and their pharmaceutical use
10/10/1990EP0390826A1 Process for producing aminoaryl-beta-sulphatoethylsulphone compounds.
10/10/1990CN1009924B Prepn. of n-(sulfonymethyl) formamide
10/07/1990WO1990012000A1 Process for the preparation of sulphonylmethanes and their derivatives
10/07/1990CA2030796A1 Process for preparing disulfones
10/02/1990US4960940 Chemical intermediates for fiber-reactive dyes
10/02/1990US4960929 Hydroxyethylsulfonylnitro- and hydroxyethylsulfonylamino-benzoic acids and processes for their preparation
09/1990
09/25/1990CA1274543A1 Process for the preparation of (-) -benzhydrylsulfinylacetamide and its therapeutical uses
09/20/1990WO1990010618A1 Method for preparing intermediates for the synthesis of steroid side chains in optically active form
09/19/1990EP0387531A1 Process for the preparation of beta-chloroethyl sulfonyl aryl isocyanates
09/18/1990CA1274248A1 METHOD OF PREPARING .alpha.-ARYLALKANOIC ESTERS
09/12/1990EP0386794A1 Method for preparing intermediates for the synthesis of steroid side chains in optically active form
09/11/1990US4956007 Anthelmintics, miticides, fungicides
08/1990
08/29/1990EP0384265A1 Process for the preparation of beta-chloroethyl sulfonyl aryl isocyanates
08/28/1990US4952722 Cyclohex-2-en-1-one derivatives; herbicides
08/21/1990US4950793 Sulfonation of aromatic hydrocarbons; chloro-or fluoro-sulfonic acid with lewis acid catalyst
08/16/1990EP0382441A2 Production of aromatic sulphones
08/14/1990USRE33300 Leukotriene antagonists; antiallergens
08/14/1990US4948919 Arylaminonitrophenyl hydroxyethyl sulfones
08/14/1990US4948917 Reacting phosgene and beta-hydroxyethylsulfonyl-arylamine
08/08/1990EP0381330A1 Fungicides
08/08/1990EP0381049A1 Process for the preparation of bis-4-chlorophenyl sulfone
08/08/1990EP0381045A2 Process for the preparation of Bis-(4-chlorophenyl)-sulfon
08/08/1990EP0381041A1 Process for the production of bis(4-hydroxyphenyl) sulfone
08/08/1990CN1009086B Prepn. trisubstituted benzoic acid intermediates
08/08/1990CN1009085B Prepn. of sulfoxides
08/07/1990US4947001 Halogenating hydroxysulfone salt
08/07/1990CA1272448A1 Pharmaceutical composition containing at least one benzonorbornen derivative as active principle
08/02/1990DE4001615A1 Bis-4-chloro-phenyl sulphone prodn. - from chloro-benzene, bis-tri:methyl-silyl pyrosulphate and sulphur tri:oxide
08/02/1990DE3902897A1 Process for the preparation of bis(4-hydroxyphenyl) sulphone
08/02/1990DE3902893A1 Process for the preparation of bis(4-chlorophenyl) sulphone
08/02/1990CA2008291A1 Fungicides
08/01/1990EP0380175A1 Process for forming 4,4'-dihydroxydiphenyl sulfone
08/01/1990EP0380159A1 Process for purifying crude tetrabromobisphenol sulfone by extraction
07/1990
07/31/1990US4945181 Method for resolution of racemic thiamphenicol precursors and intermediates therefor
07/27/1990CA2008121A1 Process for forming 4,4'-dihydroxy diphenyl sulfone
07/10/1990US4940812 5-substituted aminophenols
07/04/1990EP0376856A1 Preparation of biaryl compounds
07/03/1990US4939133 N-substituted-2-hydroxy-α-oxo-benzeneacetamides and pharmaceutical compositions having activity as modulators of the arachidonic acid cascade
06/1990
06/26/1990US4937386 4,4,5-trimethyl-2-(2-nitro-4-methylsulfonylbenzoyl) cyclohexane-1,3-dione
06/14/1990WO1990006302A1 Preparation of 2-halo-4-alkylsulfonylbenzoic acid
06/14/1990WO1990006301A1 Preparation of 2-(chloro, bromo or nitro)-4-(alkylsulfonyl)benzoic acids and intermediates
06/14/1990WO1990006295A1 Preparation of biaryl compounds
06/12/1990US4933494 Heating with activated carbon and hydrotalcite in mixed solvent, filtering, cooling filtrate, and precipitation
06/12/1990US4933449 Preparing 3-(4 chlorophenyl)-3-(3,4-dimethoxyphenyl) acrylic acid morpholide in the presence of potassium tert-butylate
06/05/1990US4931589 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them
05/1990
05/31/1990CA2002598A1 Preparation of biaryl compounds
05/30/1990EP0370219A1 4-Trifluor methyl mercaptophenols and their preparation
05/29/1990US4929757 Oxyalkylation, hydrogenation metal catalysts
05/23/1990CN1008055B Pesticide composition with acrylic derivs. as active component and process for preparing same, and use thereof
05/22/1990US4927855 Levorotatory isomer of benzhydrylsulfinyl derivatives
05/16/1990EP0243313B1 Acyl-cyclohexane diones and their oxime ethers exhibiting a herbicidal and plant growth activity
05/08/1990US4924030 Process for preparing cyclic terpenoids
05/08/1990US4924014 Process for the preparation of halogen-containing aromatic compounds
05/01/1990US4922016 Process for the preparation of N-(sulfonylmethyl) formamide compounds
05/01/1990US4922014 Process for the preparation of oxethylmercaptobenzaldehydes and their oxidation products
04/1990
04/25/1990EP0364877A1 Process for the preparation of Bis(4-chlorphenyl) sulfone
04/25/1990EP0364876A1 Process for the preparation of Bis(4-hydroxyphenyl)sulfone
04/24/1990US4920222 Reacting a benzophenone and an acetamide in presence of sodium tertiary alcoholate
04/24/1990US4920135 Nonphytotoxic, interfere with metamorphosis
04/17/1990US4918095 Compositions with antibiotic activity and their use
04/10/1990US4916230 Process for preparing novel N-(acyloxy-alkoxy)carbonyl derivatives useful as bioreversible prodrug moieties for primary and secondary amine functions in drugs
04/03/1990US4914231 Method for purifying a crude diphenylsulfone tetracarboxylic acid
03/1990
03/28/1990EP0360351A1 Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
03/27/1990US4912262 Reacting a cyclohexane-1,3,5-trione compound with a acylnitrile in presence of a base and Lewis acid
03/27/1990CA1267153A1 Benzonorbornene derivatives; process for preparing the same and cosmetic compositions containing these derivatives
03/20/1990US4909835 Containing a sulfur substitution in position 5
03/06/1990US4906666 Hydroxamic acids and pharmaceutical compositions containing them, and anti-allergic use thereof
03/06/1990CA1266485A1 Trisubstituted benzoic acid intermediates
02/1990
02/27/1990US4904661 Phenol derivatives
02/20/1990US4902835 Fluorinated butene derivatives and methods for their preparation
02/20/1990US4902795 Intermediates for 1,8-bridged 4-quinolone-3-carboxylic acid antibacterials
02/06/1990US4898983 Preparation of aryl carbonyl compounds
02/06/1990US4898981 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom
02/06/1990US4898977 Processes for the preparation of 5-amino-4-hydroxyvaleric acid derivatives
02/06/1990US4898973 Trisubstituted benzoic acid intermediates
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