Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
03/1989
03/14/1989US4812589 Polyol components in cast resin formulations
03/14/1989US4812555 Peptides possessing renin inhibitory activity
03/08/1989EP0306472A2 Resin systems cured with blocked acid catalysts
03/08/1989EP0306471A2 Blocked acid catalysts
03/08/1989EP0306014A1 Bis(trichloromethyl sulphides) useful as stabilising agents for rubber vulcanisates
03/08/1989EP0305925A1 Process for the manufacture of conversion products of epoxidized ricinic-acid glycerides and sulphur trioxide
03/08/1989EP0305924A2 Process for the sulfonation and/or sulfatation of organic compounds with S03 in an organic reaction medium
03/08/1989EP0305648A1 Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid
03/08/1989EP0226917B1 Acrylic acid esters and fungicides containing these compounds
03/07/1989CA1250856A1 Methods and compositions for increasing hydrocarbon production from subterranean formations
03/01/1989EP0305320A2 Multinucleic substituted complexants, complexes and complex salts, process for their preparation and pharmaceutical agents containing them
03/01/1989EP0305041A1 Preparation of iodonium and sulfonium triflates
02/1989
02/28/1989US4808602 Vitamin b6 and vitamin k activity
02/28/1989US4808344 Basification, removal of salts, vacuum distillation
02/28/1989US4808343 Mixing with alcohol, phase separation
02/28/1989US4808342 Production of sulfonated amines
02/22/1989EP0303915A2 Retinoids for the treatment of skin damaged by light
02/21/1989US4806604 Photosensitive calcium chelators
02/21/1989US4806141 Herbicidal compounds and compositions
02/21/1989CA1250306A1 Process for the preparation of acetylenic derivatives, derivatives thus made, and their use
02/16/1989DE3725928A1 Bis-styryl compounds
02/15/1989EP0303466A2 Ethanolamine derivatives
02/15/1989EP0303227A1 Ethers and thioethers having therapeutical activity, their preparation and pharmaceutical compositions containing them
02/15/1989EP0303181A2 1,2-Diamine compounds, process for their preparation as well as medicaments containing these compounds
02/08/1989EP0302626A2 Insecticidal compounds
02/08/1989EP0226636B1 New carboxylic acid derivatives, their manufacturing process, use and medicines containing these compounds
02/07/1989US4803201 Aphidicolane derivatives; viricides; antitumor agents
02/07/1989US4803015 Continuous process for the production of acyloxybenzenesulfonic acids
02/02/1989DE3724036A1 Process for the preparation of dialkylbenzenesulphonic acids which are low in tar and sulphuric acid from the bottom alkylate of the synthesis of linear alkylbenzenes
02/01/1989EP0301414A2 Surface active hydroxysulfonates
01/1989
01/31/1989US4801717 Hydroxylamine derivative of 5-nitro-8-hydroxy quinoline
01/31/1989US4801409 Hypofluorites and bis-hypofluorites, and process for preparing same
01/26/1989WO1989000558A1 AMINE SALTS OF ALKANE-1,n-DICARBOXYLIC ACID MONO-(2-SULFATO-ETHYL)AMIDES
01/25/1989EP0300275A2 Process for the preparation of aminoaryl-sulphonic acids
01/25/1989EP0300218A1 Use of substituted 1,4-naphthoquinones against nites and fungi
01/24/1989US4800162 Enzyme-activated membrane
01/24/1989CA1249301A1 Process for deoiling of olefin sulphonates
01/24/1989CA1249300A1 Process for the preparation of p- isononanoyloxybenzenesulphonate
01/24/1989CA1249272A1 Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids
01/18/1989EP0299313A1 Pesticide based or derivatives of 2,3-diaminomaleonitrile
01/17/1989US4798915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids
01/17/1989US4798688 2-alkoxy-5-chloro-benzenesulfonates useful for the preparation of 2-alkoxybenzosulfonamides
01/17/1989CA1248949A1 Guanidine derivatives
01/11/1989EP0298361A1 Liquid detergene containing disulfonated optical brighteners
01/11/1989EP0298296A1 Polyalkylene glycol-naphthyl-3-sulfopropyl diethers and their salts, process for the preparation of these compounds and their use in the galvano technique
01/10/1989US4797502 Enzyme inhibitors, antilipemic agents
01/10/1989US4797427 Esterification, hydrogenation
01/10/1989US4797345 Light-sensitive 1,2-naphthoquinone-2-diazide-4-sulfonic acid monoesters of cycloalkyl substituted phenol and their use in light-sensitive mixtures
01/10/1989US4797152 Controlling grasses in crops
01/10/1989CA1248343A1 Stable forms of polyalkylaromatic sulfonates
01/10/1989CA1248340A1 Olefin sulphonate composition
01/04/1989EP0297995A1 Polycyclic aromatic compounds, process for their preparation and their use in human and animal medicine and in cosmetics
01/04/1989EP0297825A1 Light-sensitive 1,2-naphthoquinone-2-diazide-4-sulfonic acid monoesters and their use in light-sensitive mixtures
01/03/1989US4795831 Chemical intermediate for n-aspstyyl-n*-(2,2,5,5-tetramethylcyclopentanecarbonyl)-1,1-diaminoethane
01/03/1989US4795596 Chemical intermediate for 6-hydroxy-naphthalene carboxylic acid/1-
01/03/1989US4795595 Preparing taurine-containing peptides by reacting a protected amino acid with cystamine, oxidation, deprotection
12/1988
12/27/1988US4794172 Ceric oxidant
12/21/1988EP0295535A1 Sulfonates of polyoxyalkyl esters of fatty acids, process for their preparation and their use as tensides
12/20/1988US4792419 Ether sulfonates
12/20/1988CA1247127A1 Cyclohexane-1,3-dione derivatives and their use for controlling undesirable plant growth
12/14/1988EP0294667A2 (2-cyano-2-oximinoacetyl)-amino acid derivatives
12/13/1988US4791123 Insecticidal triffluormethyl alkane derivatives
12/07/1988EP0294073A1 Preparation of esters
12/07/1988EP0293913A1 Process for the preparation of ethanesulfone compounds which may be substituted
12/07/1988EP0293912A2 Process for the preparation of ethane sulfobetaine compounds which can be substituted
12/07/1988EP0293744A1 Process for recovering benzolmonosulfonic acids from aqueous solutions or suspensions
12/07/1988EP0293672A1 Preparation of alkanedisulfonic acids
11/1988
11/30/1988EP0292911A2 Process for the preparation of pure nitro-aminobenzene-compounds
11/29/1988US4788316 Sulfonation, neutralization with excess acid salt in nonaqueous solvent
11/29/1988US4788314 Method for producing polymerizable monomers containing a sulphate group
11/29/1988US4788012 Process for the preparation of benzyl trifluoromethyl sulfide
11/29/1988US4788011 Spraying from separate nozzles; mixing in the spray cones
11/29/1988US4787911 Surface-active oligomers, a process for their preparation and compositions containing them
11/23/1988EP0292161A2 New photosensitive calcium chelators
11/23/1988EP0291590A1 Cement dispersant
11/23/1988EP0218005B1 Single pot process for the production of 2-acetamidonaphthalene-6-sulphonic acid with a high purity
11/22/1988US4786441 Reacting trimethylsilyl triflate with iodonium or sulfonium halide
11/16/1988CN87106508A Chemical compositions and use as fuel additives
11/15/1988US4785089 Hypotensive agents
11/15/1988US4784809 Peroxidation a corresponding thiocyanate
11/15/1988US4784801 Alkylether sulfonates from corresponding sulfates
11/10/1988DE3714611A1 Process for the preparation of 2-chloro-5-nitrobenzenesulphonyl chloride
11/09/1988EP0289952A1 Preparation of propanone -1,3-disulfonic acid
11/09/1988EP0289847A1 Preparation of 2-Chloro-5-nitro- and 4-Chloro-3-nitrobenzene-sulfonyl chloride
11/09/1988EP0289689A1 Process for the preparation of amino aryl sulfonic acids
11/08/1988CA1244459A1 Process for the photochemical stabilization of undyed and dyed material of polyamide fibres and of mixtures of these with other fibers
11/02/1988EP0288824A2 Aromatic diamines containing sulfonic acid esters, process for their preparation and their use for the preparation of polyurethane polymers
11/02/1988EP0137174B1 Cyclohexane-1,3-dione derivatives, process for their preparation and their use as herbicides
11/01/1988US4782177 Acrylic acid derivatives and fungicides which contain these compounds
10/1988
10/26/1988EP0287909A1 Amyloidosis and Alzheimer's disease diagnostic assay and reagents therefor
10/26/1988EP0287750A2 Photoactive curcumin derivatives
10/25/1988US4780125 Herbicides
10/19/1988EP0286914A1 Process for the preparation of trifluoromethanesulfonic acid
10/18/1988US4778945 Process for removing paraffins from their mixtures with paraffinsulphonic acids
10/18/1988US4778675 Perfluorinated surface-active oligomers, process for their preparation and compositions containing these oligomers
10/18/1988US4778629 Process for the preparation of acyloxybenzenesulfonic acids and salts thereof
10/12/1988EP0285972A2 Process for the preparation of 2,4-diaminobenzenesulfonic acid
10/12/1988EP0285711A1 Thermally stable sulfonate compositions
10/12/1988EP0207445B1 Process for the preparation of acyloxybenzenesulphonic acids and their salts
10/11/1988US4777246 1-diazo-2-naphthol-4-sulfonic acid by iron-catalyzed diazotization