Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
05/1992
05/05/1992US5110985 Addition of hydroxylamine to alpha,beta-unsaturated carboxylic acid
05/05/1992US5110981 Incremental alternating additions of sulfonating agent and alkylating alcohol
05/05/1992US5110975 Isocyanatoalkyl sulphonates and a process for their preparation
05/05/1992US5110342 Indan-1,3-dione derivative and herbicidal composition containing the same as active ingredient
05/05/1992CA1299963C Cationic surfactants based on quaternary ammonium compounds and use thereof in cleaning agents
05/03/1992CA2052583A1 Production of nickelized articles
04/1992
04/30/1992WO1992006935A1 Sulfonating agent and process
04/30/1992WO1992006683A1 Aryl and heteroaryl compounds having anti-retrovirus activity
04/30/1992DE4034242A1 Prepn. of alpha-sulpho:fatty acid ester having low content of di-salts - by reacting liq. satd. fatty acid continuously with dil. sulphur tri:oxide, reacting crude sulphonation prod. with lower alkanol and neutralising
04/30/1992CA2094139A1 Aryl and heteroaryl compounds having anti-retrovirus activity
04/29/1992EP0482789A2 Benzoquinone compounds
04/28/1992US5109020 Fluorinated cyclohexane derivatives, process and intermediates for their preparation and the use of the new fluorinated cyclohexane derivatives as fungicides and intermediates
04/28/1992US5108500 Adding copper salts
04/28/1992US5108483 Herbicidal 6-heterocyclic group substituted benzoxazines
04/26/1992CA2054293A1 Benzoquinone compounds
04/22/1992EP0481311A2 Aminoacid derivatives
04/21/1992US5107019 Sulfoxidizing paraffins, removing excess and sulfur dioxide, adding hydrogen peroxide, removing sulfuric acid, recovering product by adding alcohol, vacuum distilling, or forming azeotrope and distilling
04/21/1992CA1299191C Functionalisation of iodo-polyfluoroalcanes by electrochemical reduction, and new fluorinated compounds thus obtained
04/21/1992CA1299190C Process for the preparation of isethionic acid
04/20/1992CA2028031A1 Aryloxy alcoyl benzens, process for the preparation thereof and pharmaceutical compositions comprizing them
04/19/1992CA2053573A1 Amino acid derivatives
04/16/1992WO1992006074A1 Photosensitive azo compound and image forming device utilizing the same
04/15/1992EP0423133A4 Enzymatic resolution systems and compounds useful in the systems and their reparations
04/14/1992US5104440 N-phenylsulfonyl-n'-pyrimidinylureas
04/14/1992US5104414 2-alkyl-4-methoxy-5-aminophenol or salt thereof, or 2-alkyl-4-methoxy-5-substituted aminophenol or salt thereof, and dyeing composition for keratin fibers comprising the same
04/14/1992CA1298849C Aromatic diamines containing sulfonic acid aryl esters, a process for their production and their use in the production of polyurethane plastics
04/07/1992US5103051 Reacting perfluoroalkyl (sulfonyl fluoride) monofluoroacetyl-fluoroide and a metal oxide under anhydrous conditions, heating and recovering desired compound from effluent
04/07/1992US5103050 Process for preparing perfluoroalkenyl-sulfonyl fluorides
04/07/1992US5103049 Deacetylating by metal carbonates
04/07/1992US5103048 Water soluble foaming agent; lowering surface tension
04/07/1992US5102961 Isocyanate modified blocked sulfonic acid ester as a crosslinking catalyst
04/02/1992WO1992005150A1 Sulphonated octadienyl aryl ethers
04/02/1992DE4030852A1 Light coloured alpha-sulpho-fatty acid alkyl ester salt prodn. - by sulphonating ester with sulphur tri:oxide gas using cyclic nitrogen base as antioxidant
04/01/1992EP0478063A1 Method of making optically active alcohols
04/01/1992EP0477631A1 Ortho substituted phenylacetic acid amides
03/1992
03/31/1992US5101068 Monofluoromethylation of organic compounds, reaction with amino acids
03/31/1992US5101007 Process for the preparation of naphthalenesulfonic acid/formaldehyde condensates having a low free formaldehyde content
03/31/1992US5100588 Process for the preparation of acyloxybenzenesulfonic acids and their salts
03/31/1992CA1298305C Photosensitive calcium chelators
03/26/1992DE4030092A1 Sulfonierte octadienylarylether Sulfonated octadienylarylether
03/26/1992DE4030038A1 New 2-substd. phenyl-acetamide derivs. - useful as fungicides, insecticides, acaricides and nematocides
03/25/1992EP0476608A1 Substituted phenols
03/25/1992CN1059729A Polypeptide compound and process for preparation thereof
03/25/1992CN1015980B Process for separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/25/1992CA2050825A1 Method of making optically active alcohols
03/24/1992US5099065 Amphoteric surfactants with good foaming power
03/24/1992US5098903 Diphenylcyclopropyl analogs as antiestrogenic and antitumor agents
03/24/1992CA1297904C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/24/1992CA1297903C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/24/1992CA1297895C Process for the production of derivatives of natural fats and oils
03/24/1992CA1297871C Fungicides
03/18/1992EP0475513A1 Process for preparing quaternary ammonium carbonate esters
03/18/1992EP0475512A1 Process for preparing quaternary ammonium carbonate esters
03/18/1992EP0475044A1 Process for the production of aminoarylsulphonic acids
03/18/1992EP0474861A1 Alcohol-ester separation by reaction with acetate.
03/18/1992EP0474854A1 Alcohol-ester separation by recrystallization.
03/18/1992EP0474853A1 Protected hydroxy method for alcohol-ester separation.
03/17/1992US5097049 Process and intermediates for chiral epoxides
03/17/1992US5096625 Process for the sulphoxidation of n-paraffins
03/15/1992CA2051050A1 Process for preparing quaternary ammonium carbonate esters
03/15/1992CA2051049A1 Process for preparing quaternary ammonium carbonate esters
03/11/1992EP0474594A1 Process for dyeing of wool and mixtures thereof with other fibres with reactive dyestuffs
03/11/1992EP0474063A1 Dialkoxybenzylidene campher derivatives
03/10/1992US5095150 Formylated alklbenzenesulfonyl halide compound and process for preparing the same
03/10/1992US5095144 Process for dimerizing aromatic halogen compound
03/10/1992US5095132 Use of surfactants in phenol sulfonate dehydration
03/10/1992CA1297122C Hypofluorites and bis-hypofluorites, and process for preparing same
03/08/1992WO1992004328A1 Antiviral compounds and antihypertensive compounds
03/08/1992CA2091173A1 Antiviral compounds and antihypertensive compounds
03/04/1992EP0473547A1 Olefinically unsaturated onium salts
03/03/1992US5093029 Passing through layer of alkanesulfonyl chloride and/or bed of carbon
03/03/1992US5092971 Bromination
02/1992
02/28/1992CA2049772A1 Olefinically unsaturated onium salts
02/26/1992EP0472310A1 New surfactant compositions, method for their preparation, and pesticidal compositions containing same
02/26/1992CN1058959A Oligomers, their uses and formulations
02/25/1992CA1296359C Process for extracting paraffins from their mixtures with alkanesulphonic acids
02/25/1992CA1296358C Process for removing paraffins from their mixtures with paraffinsulphonic acids
02/25/1992CA1296357C Process for extracting paraffins from their mixtures with paraffinsulphonic acids
02/25/1992CA1296355C Process for preparing fluoroaliphatic ether-containing carbonyl fluoride compositions
02/20/1992WO1992002484A1 Protein kinase c modulators with anti-inflammatory and antiviral activity
02/18/1992US5089373 High resolving power, sensitivity
02/18/1992US5089046 Aryl and heteroaryl diones
02/12/1992EP0470669A2 Preparation of fluorophenols, fluorohalophenols, N-acylfluoroanilines, and N-acylfluorohaloanilines
02/12/1992EP0470177A1 Fungicidal oxime carbamates
02/11/1992US5087743 Treatment of skin disorders
02/05/1992EP0469399A1 Aminobenzophenonesulfonic acids and their intermediates
02/05/1992EP0468971A1 Novel benzimidazole derivatives
02/04/1992US5086073 Brain disorders
02/04/1992US5085786 Aqueous film-forming foamable solution useful as fire extinguishing concentrate
01/1992
01/31/1992WO1992002487A1 New diamine compound and brain protecting agent containing the same
01/29/1992EP0468927A2 Derivatives of carboxymethylcyclopropane
01/29/1992EP0468856A1 Solubilizing and dispersant compounds, process for preparation and compositions containing them
01/29/1992EP0468766A1 Halogen-containing compounds, herbicidal composition containing the same as an active ingredient, and intermediary compounds therefor
01/29/1992EP0468581A1 Process for the preparation of 2,6-di-t-butyl-4-mercaptophenol
01/29/1992EP0468531A1 2-Diazo-1,2-quinone compounds and image forming materials prepared using the compounds
01/29/1992EP0468054A1 Benzenesulfonamide derivative
01/28/1992CA2047901A1 Carboxymethylcyclopropane derivatives
01/28/1992CA1294977C Hair treatment preparations
01/25/1992CA2047597A1 Halogen-containing compounds, herbicidal composition containing the same as an active ingredient, and intermediary compounds therefor
01/22/1992EP0467856A2 Aminoalkanesulfonic acid derivatives and pharmaceutical compositions for use in preventing or treating heart diseases