Class 562/74 - Nonsulfonate chalcogen attached indirectly to the sulfonate group by nonionic bonding

Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the sulfonate group is attached indirectly
No. of patents: 33
Last issue date: 01/20/2004

Number	Title	Issue Date
6680345	Salicylic acid salts of salmeterol The present invention relates to new substituted salicylic acid salts of salmeterol, processes for preparing them and their use...	01/20/2004
6657072	Method of preparing lithium complex salts for use in electrochemical cells The invention relates to a method of preparing lithium complex salts and their intermediaries and to the use of these in electrolytes....	12/02/2003
6303562	Compositions comprising 2-(2-hydroxyphenyl)benzenesulfinate and alkyl-substituted derivatives thereof The present invention relates to certain alkylated 2-(2-hydroxyphenyl) benzenesulfinic acid and 2-(2-hydroxyphenyl)benzenesulfonic acid compounds and compositions which consist essentially of 2-(2-hydroxyphenyl) benzenesulfinic acid, 2-(2-hydroxyphenyl)be...	10/16/2001
6194606	Intermediates The present invention provides compounds having the formula: ##STR1## in which R is hydrogen or C1 -C4 alkyl, preferably hydrogen and Y is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy, CF3, ...	02/27/2001
6031126	Process A process for the production of a fluorescent whitening agent of formula: ##STR1## in which X and Z are as defined herein, comprising A) rearranging a hydrazobenzene compound having the formula: ##STR2## in which Z is as defined herein, to produ...	02/29/2000
5952526	Process for the dealkylating sulfonation of p-alkyl calixarenes Para sulfonated calixarenes are obtained in a one-step reaction directly from para blocked calixarenes by treating same with a sulfonating agent, such as concentrated sulfuric acid, to perform an ipso-electrophilic substitution....	09/14/1999
5936106	Process with porous means to control reaction rate and heat An process for forming a product which may be in a liquid phase is disclosed wherein a first reactant, preferably a liquid reactant, is directly fed into a reaction zone containing mixing elements and which comprises a first compartment of a reactor. A se...	08/10/1999
5902909	Intermediates The present invention provides compounds having the formula: ##STR1## in which R is hydrogen or C1 -C4 alkyl, preferably hydrogen and Y is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy, CF3	05/11/1999
5583240	Exothermic process with porous means to control reaction rate and exothermic heat An exothermic process for forming a product which may be in a liquid phase is disclosed wherein a first reactant, preferably a liquid reactant, is directly fed into a reaction zone containing mixing elements and which comprises a first compartment of a re...	12/10/1996
5543387	Surfactant additive for oilfield acidizing Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an alkoxylated alkyl substituted phenol sulfonate which exhibits both antisludge and demulsification properties....	08/06/1996
5438142	Functionalized tris(hydroxyphenyl) compounds Compounds useful as polymer stabilizers which are polymerizable into condensation polymer systems are disclosed and claimed. A particularly preferred embodiment is 1-(3'-(benzotriazol-2"-yl)-4'-hydroxyphenyl)-1,1-bis(4-hydroxyphenyl)ethan e....	08/01/1995
5220062	Process for the preparation of benezenesulfonamides There is disclosed a multi-step process for the preparation of benzenesulfonamides of general formula ##STR1## wherein R is 3,3-difluorobutyl or 3,3-difluorobuten-1-yl. The benzenesulfonamides obtainable by the process of the invention are inter...	06/15/1993
5157156	Process for preparing an intermediate useful in the syntheis of probucol A process for preparing 2,6-di-t-butyl-4-mercapto-phenol. This is accomplished by sulfonation of the phenol with a silylated sulfonating agent (e.g., trimethylsilyl-chlorosulfonate). The sulfonic acid is then reduced directly or is converted to the sulfon...	10/20/1992
5128479	Oxidized diphenylheteroalkanes Oxidized diphenylheteroalkanes of the formula I ##STR1## where R1 to R6 and A have the meanings specified in the description, and the preparation thereof are described. The substances are suitable for controlling diseases and as...	07/07/1992
5095132	Use of surfactants in phenol sulfonate dehydration A process for dehydrating phenol sulfonate salts by azeotropic distillation of water wherein a surfactant such as sodium dodecylbenzene sulfonate is used to prevent the salts from agglomerating and plating out on the walls of the reaction vessel....	03/10/1992
4959490	Process for manufacturing disulfonate surfactants A process for manufacturing monosulfonated alkylphenol polyalkylene oxide sulfonates is disclosed. The process produces the monosulfonated alkylphenol polyalkylene oxide sulfonates by a combination of sulfonation to produce a sulfate/sulfonate dianion, fo...	09/25/1990
4894173	Divalent ion tolerant aromatic sulfonates Divalent ion tolerant aromatic sulfonate suitable for enhanced oil recovery characterized by the formula: ##STR1## where x=0 to 4 R'=H or Ch3 R=CH3 (CH2)y and y=1 to 15. Preferably, the composition comprises of second comp...	01/16/1990
4859372	Process for the sulphonation of aromatic compounds with sulphur trioxide A new process for the preparation of aromatic sulphonic acids, in which the sulphonation of the aromatic compounds is carried out with sulphur trioxide in organic solvents in the presence of hydrogen halide....	08/22/1989
4828765	Oxyalkylated quaternary ammonium compounds and their use as drag reducing agents Quaternary ammonium compounds of the formula ##STR1## in which R1 denotes an alkyl or alkenyl radical with 12 to 22 carbon atoms; R2 and R3 are identical or different and denote an alkyl radical with 1 to 4 carbon ato...	05/09/1989
4705649	Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts Acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts are prepared by sulfonation of phenol in the presence of a small amount of a complexing agent for the sulfonating agent SO3 or chlorosulfonic acid, followed by e...	11/10/1987
4666636	Production of sodium phenol sulfonate A process for preparing anhydrous sodium phenol sulfonate low in APHA color wherein the hydrated material is subjected to a temperature in the range of from about 140° C. to 200° C. in an inert atmosphere for a period of time not exceeding two hours....	05/19/1987
4457762	Stabilized water slurries of carbonaceous materials Improved stabilized water slurries of carbonaceous materials are obtained by having present a condensation product or a salt thereof of a substituted phenol sulfonic acid which is (a) an arylphenol sulfonic acid, (b) an aralkylphenol sulfonic acid, (c) an aryl...	07/03/1984
4457874	Condensation products of substituted phenol sulfonic acid and formaldehyde A dispersing agent which is (a) a condensation product of a substituted phenol sulfonic acid which is an arylphenol sulfonic acid or an aralkylphenol sulfonic acid with from about 0.5 to about 4 moles of formaldehyde per mole of substituted phenol sulfoni...	07/03/1984
4439374	Process for sulfonating impure ortho alkylphenol The sulfonation of o-alkylphenols by reaction with sulfuric acid is improved to give higher conversion to disulfonated o-alkylphenol by adding a small amount of a polybasic carboxylic acid (e.g. oxalic acid) to the o-alkylphenol. The sulfonated product is...	03/27/1984
4410331	Condensation products containing sulphonic acid groups: additives for dyeing synthetic polyamide New condensation products of the formula ##STR1## wherein R represents alkyl, cycloalkyl, aralkyl, aryl, or halogen, M represents hydrogen, an alkali metal or alkaline earth metal or an ammonium group, and n is a number from 1 to 3; these products ar...	10/18/1983
4366079	Sulfonated rubrene and aqueous chemiluminescent compositions containing the same Water-soluble sulfonated rubrenes are used as fluorescer components in water-soluble chemiluminescent mixtures and particularly in combination with a water-soluble amide of oxalic acid which reacts with hydrogen peroxide to produce chemiluminescence....	12/28/1982
4322372	Condensation products containing sulphonic acid groups New condensation products of the formula ##STR1## wherein R represents alkyl, cycloalkyl, aralkyl, aryl, or halogen. M represents hydrogen, an alkali metal or alkaline earth metal or an ammonium group, and n is a number from 1 to 3; these products ar...	03/30/1982
4261916	Sulph(on)ation process An orifice plate mixer for mixing 2 fluids has an axial orifice perpendicular to the plate through which bore a first fluid passes and a port in the internal wall of the orifice through which the second fluid passes. The mixer can impart high turbulence t...	04/14/1981
4226796	Sulph(on)ation process Sulph(on)ation of organic feedstocks is performed with undiluted sulphur trioxide in a recycle loop reactor in which the feedstock is diluted with its recycled sulph(on)ation product, contact of the feedstock and sulphur trioxide occurs under conditions o...	10/07/1980
4054669	Phenolic menthene derivatives, therapeutic composition containing same and their use as therapeutic compositions 1-Hydroxy-4-(3'-m.menthen-4'-yl)-benzene, 1-hydroxy-3-methyl-4-(3'-m.menthen-4'-yl)-6-isopropyl-benzene and their sulfonates have antiviral activity against influenza virus and antibacterial activity against gram-positive bacteria....	10/18/1977
3985796	Hydroxylation of aromatic compounds The nuclear hydroxylation of aromatic compounds is effected by treating said compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing an aliphatic nitrile compound at conditions which include a temperature ...	10/12/1976
3985797	Hydroxylation of aromatic compounds The nuclear hydroxylation of aromatic compounds is effected by treating said compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing a salt of hydrocyanic acid at conditions which include a temperature in ...	10/12/1976
3931295	Hydroxylation of aromatic compounds Nuclear hydroxylation of aromatic compounds is effected by treating said aromatic compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing a salt of hydrocyanic acid, or an aromatic or aliphatic nitrile com...	01/06/1976

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Class 562/74 - Nonsulfonate chalcogen attached indirectly to the sulfonate group by nonionic bonding