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Class 534/886 - Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.)


Subclass of Class 534 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain a -- group, wherein X is chalcogen
No. of patents: 73
Last issue date: 05/24/2011


1    
NumberTitleIssue Date
7947816Azodicarboxylic acid bis(2-alkoxyethyl) ester compound, and production intermediate thereof
Provided is an industrially safe and useful azodicarboxylic acid bis(2-alkoxyethyl) ester compound that is useful for the Mitsunobu reaction in which it is used in combination with a phosphorus compound to carry out a dehydration condensation reaction, and also usef...
05/24/2011
7205035Thermoset composition, method, and article
A curable composition includes a functionalized poly(arylene ether), an alkenyl aromatic monomer, an acryloyl monomer, and a polymeric additive selected from polystyrene, poly(styrene-maleic anhydride), poly(styrene-methyl methacrylate), polybutene, poly(ethylene-bu...
04/17/2007
7119210Dual function UV-absorbers for ophthalmic lens materials
Disclosed are UV absorbers that contain a labile functional group capable of initiating free radical polymerization. ...
10/10/2006
6407219Process for preparing azoiminoethers and azocarboxylic acid esters and novel azocboxylic acid mixed esters
The invention concerns a method for preparing an azoiminoether hydrochloride which consists in reacting an azonitrile with an alcohol and hydrochloric acid in an aromatic solvent, wherein the molar ratio R=HCl/azonitrile is >2 when the alcohol is methanol...
06/18/2002
6042621Fibre-reactive dyestuffs
The application is concerned with a compound of the formula (I) ##STR1## and a process for making the same. The compound is useful as fiber-reactive dyestuff in dyeing or printing onto hydroxy- or nitrogen-containing substrates. A printing compositio...
03/28/2000
5973125Macroazo compound, a process for its production, a macroazo initiator, and a process for its use
An azoamide compound of the formula: ##STR1## wherein R1 through R4 are independently an alkyl group; X is an alkylene groupl Y is --O-- or --NH--; and n is an integer of 2 or more, is effective for producing a macroazo compound...
10/26/1999
5854406High molecular weight azoamide compound
An azoamide compound of the formula: ##STR1## wherein R1 through R4 are independently an alkyl group; X is an alkylene group; Y is --O-- or --N--; and n is an integer of 2 or more, is effective for producing a macroazo compound,...
12/29/1998
5849888Azoamide compound
Azoamide compounds shown by the general formula ›1 ! ##STR1## (Wherein R1 and R2 are independently a lower alkyl group, and R3 is a saturated alkyl group having 2 or more carbon atoms) and their use....
12/15/1998
5847091Fluorine-containing azo compounds
A fluorine-containing azo compound having a fluorine segment at a molecular terminal is useful as a polymerization initiator for producing, for example, fluorine-containing polymers....
12/08/1998
5650498Water-soluble azo compound in the form of granules having a spherical shape and process for producing the same
The present invention provides a process for producing a spherical granule of a water-soluble azo compound, which comprises dispersing a water-soluble azo compound in a water-insoluble solvent and then add dropwise water or a hydrophilic solvent dissolvin...
07/22/1997
5563276Polymerization of acrylic acid and derivatives thereof using azoamidoxime salt
Acrylic acid or water-soluble derivatives thereof can be polymerized effectively in a short time using as a polymerization initiator an inorganic acid salt or organic acid salt of 2,2'-azobis(2-methylpropionamidoxime)....
10/08/1996
5446134Bis(perfluorosulfonyl)methane salts, and a process for preparing same
Bis(perfluorosulphonyl)methanes, process for preparing same and uses thereof. The compounds of the invention are based on the formula (1/nM)+[(RF SO2)2 CY]- in which Y denotes an electron-attracting group chosen...
08/29/1995
5399555Methods of disinfecting, disinfectants and pharmacetical composition comprising azoic compound
Compositions useful in methods of disinfecting contain azoic compounds of the general formula ##STR1## wherein R1, R2, R3 and R4 are identical or different and each represents an atom of hydrogen or an alip...
03/21/1995
5324827Optionally oriented, monomeric and polymeric nonlinearly optically active materials and derivatives thereof
Nonlinearly optically active monomer species comprising at least two carbon-carbon activated double bonds, i.e., the polymerization of which is facilitated by the presence of an electron attracting function, and a non-centrosymmetric system of pi (π) con...
06/28/1994
5084106Monoazo lake pigment
A monoazo lake pigment of the formula (I): ##STR1## whose X-ray diffraction pattern shows a high diffraction intensity at a diffraction angle (2θ&#b1;0.2°; Cu - K଱) of 4.9°, moderate diffraction intensities at 18.4°, 25.9° ...
01/28/1992
5053496Low viscosity statistical monofunctional carboxylic-terminated, amine-terminated, or epoxy-terminated reactive liquid rubber polymers, and a process for preparation thereof
The present invention generally relates to statistical monofunctional terminated reactive liquid rubbers including a statistical monofunctional carboxylic-terminated reactive liquid rubber, a statistical monofunctional amine-terminated reactive liquid rub...
10/01/1991
5039734Macromolecular azo compound, process for producing said compound, and resin obtained by using said compound
A macromolecular azo compound is produced by the reaction of a compound having at least 1 diazo linkage and at least 2 hydroxyl groups in a molecule, a compound having at least 2 isocyanate groups in a molecule and a compound having at least 2 hydroxyl gr...
08/13/1991
5037963Process for the preparation of symmetrical azo-dinitrile, dicarboxylic acids from keto acids
The preparation of symmetrical azodinitriles prepared from keto acids is disclosed. A keto acid of the formula ##STR1## is reacted with M(CN)x and an ammonia source to obtain an aminonitrile metal carboxylate of the formula ##STR2## ...
08/06/1991
5024698Monoazo pigment compositions
Monoazo pigments are provided which have improved properties achieved by incorporating certain azomethine compounds. The pigment compositions are prepared by reacting a primary amine-terminated alkylene oxide polymer and an acetoacetanilide to form an azo...
06/18/1991
5010179Process for the preparation of mixed, symmetrical azonitrile dicarboxylic dicyano acids and initiators
The preparation of mixed, symmetrical azonitrile initiators prepared from keto acids and aminonitrile is disclosed. A keto acid of the formula ##STR1## is reacted with M(CN)x and an ammonia source to obtain an aminonitrile metal carboxylat...
04/23/1991
5010178Process for the preparation of mixed azonitrile carboxylic acid initiators
Disclosed are processes for the preparation of mixed azodinitriles initiators of the formulae ##STR1## These initiators are prepared by reacting a keto acid of the formula ##STR2## with M(CN)x, a hydrazine source, a ketone of the form...
04/23/1991
5010177Process for the preparation of an azonitrile dicarboxylic acid initiator in acetone having a low salt and low water content
Disclosed are processes for the preparation of an azonitrile initiator having both a low salt and low water content of the formula ##STR1## This initiator is prepared by reacting a keto acid of the formula ##STR2## with M(CN)x, a hydr...
04/23/1991
5001228Bis-alkylamide azo polymerization initiators
An azo amide compound of the formula .dbd.N--C(CH3)2 --CO--NH--R]2 or a hydrate thereof or an acid-addition salt thereof, wherein R is --CH2 CH.dbd.CH2, benzyl chloride, picolyl, tetrahydropyridylmeth...
03/19/1991
4892936Process for the preparation or ଱-azo esters
A process is disclosed for the preparation of ଱-substituted carbonyl compounds, wherein ଱-substituted ketone is prepared by the following reaction: ##STR1## ଱-azo ester is prepared by the following reaction: ##STR2## and &...
01/09/1990
4874846Process for the preparation of aryloxybenzoic acids containing a sulfonamide group
Process for the preparation of aryloxy-benzoic acids containing a sulphonamide group by the direct reaction of a phenoxy-benzoic acid with a sulphonamide, in the presence of a halogenating agent such as P(O)Cl3....
10/17/1989
4831096Process of bulk polymerization of styrene using azoalkane mixtures containing unsymmetrical azoalkanes
Mixtures of azolakanes of varying thermal stabilities at least one of which is an unsymmetrical azoalkane (R--N.dbd.N--R'), are prepared by reacting 4 equivalents of a mixture of two or more primary alkyl, cycloalkyl or aralkylamines with 1 equivalent of ...
05/16/1989
4826960Novel reactions of bicyclic amide acetals with reactive protic compounds having the formula HN(R')YR2
The process for the reaction of bicyclic amide acetals with reactive protic compounds of the general Formula ##STR1## wherein Y represents a member selected from the group consisting of ##STR2## R1 represents a member selected from th...
05/02/1989
4772714Process for the preparation of ଱-aryl and ଱-heteroaryl ketones
Disclosed is a process for the preparation of alpha-aryl and alpha-heteroaryl ketones useful as intermediates in the synthesis of various pharmaceutical and agricultural chemicals, which process operates according to the following reaction scheme: ##...
09/20/1988
4684717Preparation of azo compounds having carboxyl and cyano groups
A process for the preparation of a diazocyano acid, which comprises reacting a keto-acid or its sodium salt with a cyanogen compound such as sodium cyanide or hydrogen cyanide and a hydrazine in water to form a concentrated aqueous solution of a hydrazo c...
08/04/1987
4684718Process for the preparation of diazocyano acids by reacting keto-acids with cyanogen compounds
A process for the preparation of a diazocyano acid, which comprises reacting a keto-acid or its sodium salt with a cyanogen compound such as sodium cyanide or hydrogen cyanide and a hydrazine in water to form a concentrated aqueous solution of a hydrazo c...
08/04/1987
4604455Process of preparing azoalkane mixture containing at least one unsymmetrical azoalkane
Mixtures of azoalkanes of varying thermal stabilities at least one of which is an unsymmetrical azoalkane (R--N.dbd.N--R'), are prepared by reacting 4 equivalents of a mixture of two or more primary alkyl, cycloalkyl or aralkylamines with 1 equivalent of ...
08/05/1986
4552953Water-insoluble monoazo dyestuffs, their preparation and their use
Monoazo dyestuffs, free of carboxylic acid moieties or sulphonic acid moieties, of the formula ##STR1## wherein A and A' independently of one another are linear or branched alkylene having 2 to 6 carbon atoms; R is hydrogen, alkyl having 1 to 4 carbo...
11/12/1985
4546174Process for the preparation of aliphatic azo compounds using an amine coupling
There is described a process for the production of a compound of formula I, ##STR1## in which at least one each of R1, R2 and R3, and of R4, R5 and R6, represents an electron withdrawing gr...
10/08/1985
4540760Process for producing polymers of monoallylamine
In a process for producing a polymer of monoallylamine comprising polymerizing monoallylamine, the polymerization is carried out using as a monomer inorganic acid salts (e.g., hydrochloride, sulfate, etc.) of monoallylamine in the presence of an azo type ...
09/10/1985
4528347Process for producing polymers of monoallylamine
In a process for producing a polymer of monoallylamine comprising polymerizing monoallylamine, the polymerization is carried out using as a monomer inorganic acid salts (e.g., hydrochloride, sulfate, etc.) of monoallylamine in the presence of an azo type ...
07/09/1985
4476053Surface-active azo compounds
Surface-active azo compounds corresponding to the following general formula ##STR1## in which ##STR2## R represents C1 -C4 -alkyl, R1 represents the residue diminished by the isocyanate groups of an aliphatic, ar...
10/09/1984
4444685Stereospecific synthesis of thienamycin from penicillin
A stereospecific conversion of penicillin to thienamycin, using diisopropylamine borane and magnesium trifluoroacetate to prepare the hydroxyethyl side chain and acetoacetate dianion equivalent disilylethyl to prepare the ଲ-ketoester side chain....
04/24/1984
44144131,2-Di[N,N-Bis(2-fluoro-2,2-dinitroethyl)carbamyl]hydrozine
N,N,N',N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide, ##STR1## which is prepared by the following reaction sequence ##STR2## N,N,N',N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide is a high density, energetic explosive which is melt castable as ...
11/08/1983
4317928N,N,N',N'-Tetrakis(2-fluoro-2,2-dinitroethyl) oxamide and a method of preparation thereof
N,N,N', N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide, ##STR1## which is prepared by the following reaction sequence ##STR2## N,N,N',N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide is a high density, ergetic explosive which is melt castable as w...
03/02/1982
4290945଱,଱-azo-bis-isobutyric acid ଱,ω-bis alkyl ester derivatives and method for preparing same
Novel compounds according to the present invention, i.e. derivatives of ଱,ω-bis-alkyl esters of isobutyric acid having the formula: ##STR1## A method for preparing the above-specified novel compounds consists in reacting ଱,଱'-azo-b...
09/22/1981
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