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Class 540/532 - Preparing from a compound containing a hetero ring


Subclass of Class 540 - Organic compounds -- part of the class 532-570 series
Definition: Processes whereby the compound containing the seven-membered
No. of patents: 16
Last issue date: 05/29/2012


NumberTitleIssue Date
8188269Functionalized compositions for improved immobilization
The present invention relates to improved covalent coupling of two or more entities such as biomolecules, polymer compositions, organic/inorganic molecules/materials, and the like, including their combinations, through one or more novel reactive groups attached to l...
05/29/2012
7385053Functionalized compositions for improved immobilization
The present invention relates to improved covalent coupling of two or more entities such as biomolecules, polymer compositions, organic/inorganic molecules/materials, and the like, including their combinations, through one or more novel reactive groups attached to l...
06/10/2008
7299930Collecting agent comprising ammoniated compounds (primary, secondary, tertiary amines), for use in the process of grinding and/or floating copper, molybdenum, zinc, and other contained mineral ores
The present invention provides a ammoniated collector (amine, azepine, etc.) alone or in combination with other thiol-type collecting reactants, as well as sodium, iron, magnesium, and/or manganese sulfates, sulfurs, oxides, and hydroxides, acrylic acid polymers and...
11/27/2007
7241883Functionalized compositions for improved immobilization
The present invention relates to improved covalent coupling of two or more entities such as biomolecules, polymer compositions, organic/inorganic molecules/materials, and the like, including their combinations, through one or more novel reactive groups attached to l...
07/10/2007
7217818Purification of caprolactam
A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) remo...
05/15/2007
7147757Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative
The invention relates to a method for separating by distillation a portion or the entirety of an azeptine derivative (III), which is selected from the group consisting of aminohexylidene imine, tetrahydroazepine, hexylhexahydroazepine and of aminohexylhexahydroazepi...
12/12/2006
7022844Amide-based compounds, production, recovery, purification and uses thereof
Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced by providing an organic liquid comprising at least one oxime, providing at least one catalyst, adding the ...
04/04/2006
6858728Method for making caprolactam from impure ACN in which THA is not removed until after caprolactam is produced
Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which the THA is not removed from the method until after the caprolactam is produced. ...
02/22/2005
6716977Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt
Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which ammonia and water are removed from crude caprolactam in a single separation step and then THA is removed from the resulting...
04/06/2004
6683177Process for producing caprolactam
A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formula ##STR1## and conducting the reaction ...
01/27/2004
6359128Free-flowing flakes of vinyl caprolactam monomer and process for making same
Free-flowing flakes of vinyl caprolactam monomer usable below its melting point of 34° C. without developing coloration....
03/19/2002
5912189Compositions containing reaction product of a cyclic compound containing both a nitrogen atom and a carbonyl group, an aldehyde or ketone, and an etheramine
The present invention is directed to a composition containing the reaction product of: (A) a cyclic compound containing a 5, 6, or 7-member ring, the ring containing at least one nitrogen and at least one carbonyl group, at least one carbonyl group being ...
06/15/1999
5571913Process for preparing a lactam
The invention relates to a process for preparing a lactam from an alicyclic ketoxime in the presence of a lactim-O-sulphonic acid and a solvent, the reaction being carried out in the presence of an acid cation exchanger. The invention relates in particula...
11/05/1996
5276165Preparation of N-substituted lactams
A process for the preparation of N-substituted lactams of the formula I ##STR1## where Z is C2 - to C10 -alkylene, C7 - to C12 -aralkylene, phenylene or naphthylene, and R1 is C1 - to C
01/04/1994
4731454Process for producing lactams
A method for producing a lactam having the formula: ##STR1## wherein R1 is a hydrogen atom, or a straight chain or branched chain alkyl group having from 1 to 5 carbon atoms, and R2 is an organic group having at least 2 carbon a...
03/15/1988
4110323Conversion of 2-dialkylamino-3H-azepines into epsilon caprolactams
This invention relates to a process of catalytically converting nitrobenzene to 2-amino-3H-azepines by the reaction of the nitrobenzene with trisaminophosphine and an amine of the formula HNR'2, where R' is lower alkyl containing 1 to 6 carbon ...
08/29/1978
 
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