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Class 568/423 - Nitrogen containing


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain nitrogen.
No. of patents: 22
Last issue date: 09/18/2007


NumberTitleIssue Date
7270985Process for the preparation of aldehyde from a proteinous source for industrial applications
A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkali metal hydride to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large prot...
09/18/2007
7115387Process for the preparation of aldehyde from a proteinous source for industrial applications
A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkyl halide to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large protein mole...
10/03/2006
6949681Intermediate for preparing glycopeptide derivatives
This invention provides compounds of the formula: wherein A and B are as defined; and Fmoc is 9-fluorenylmethoxycarbonyl. Such compounds are useful as intermediates for preparing glycopeptide d...
09/27/2005
6515137Catalytic processes employing chiral imidazolidinone-based catalyst composition
Acid addition salts of imidazolidinones are provided as catalysts for transforming a functional group within a first reactant by reaction with a second reactant. Exemplary first reactants are ଱,ଲ-unsaturated carbonyl compounds such as ଱,...
02/04/2003
6509506Two step synthesis of D- and L- ଱-amino acids and D- and L- ଱-amino aldehydes
D- and L- ଱-amino acids and D- and L-଱-amino aldehydes are synthesized from olefin substrates in two steps. The first step is a catalyzed asymmetric aminohydroxylation addition reaction to the olefin substrate. The addition reaction is catalyz...
01/21/2003
6486307Preparation of glucosamine hydrochloride
A method of producing glucosamine hydrochloride from chitin by grinding the chitin to a very fine size and digestion with concentrated hydrochloric acid. The glucosamine hydrochloride is decolorized with activated charcoal, washed with ethanol and assayed...
11/26/2002
6395916Ligands for metals and improved metal-catalyzed processes based thereon
One aspect of the present invention relates to novel, electron-rich bidentate ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom ...
05/28/2002
6291702Azulenyl nitrone spin trapping agents, methods of making and using same
The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping...
09/18/2001
6197825Azulenyl nitrone spin trapping agents, methods of making and using same
The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping...
03/06/2001
5543560Hydrogenolytic reduction of peroxidic ozonolysis products
A method for the hydrogenolytic reduction of peroxidic ozonolysis products to the corresponding carbonyl compounds in the presence of an inert organic diluting agent and in the presence of a monolith catalyst at hydrogen pressures of 0.01 to 2.0 MPa and a...
08/06/1996
5530150Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives
A phosphine compound represented by one of the formulas: ##STR1## wherein R1 and R2, which may be the same or different, each represent a phenyl group or a phenyl group substituted with a halogen atom or a lower alkyl group or t...
06/25/1996
5489714Method of synthesizing 2,6-dinitro benzyl compounds
Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate....
02/06/1996
5449834Method of synthesizing 2,6-dinitro benzyl compounds
Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate....
09/12/1995
53290253-azido compound
A new and practical method for synthesizing heterocyclic polyhydroxylated alkaloids using enzymatic aldol condensation and catalytic intramolecular reductive amination is disclosed....
07/12/1994
5082976Process for the preparation of benzaldehydes
Benzaldehydes of the formula ##STR1## can be obtained by reaction of substituted ଲ-amino-styrenes of the formula ##STR2## in which R1, R2, R3, R4, R5, R8, R9, ...
01/21/1992
4605749Production of aldehydes
There is provided a process for the production of aldehydes wherein an oric halide is reacted with carbon monoxide at a superatmospheric pressure in the presence of a hydrogen donor and in the presence of a base and of a catalyst in a solvent system. Cat...
08/12/1986
4544765Chloramphenicol derivatives
Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxocarbonyl group which is used...
10/01/1985
4299985Selective oxoamination process
This invention concerns the synthesis of linear alkyl primary amines from a-olefins via an oxoamination process comprising (a) hydrogen and carbon monoxide addition to olefinic substrates to obtain aldehyde-containing compounds in the presence of ligand-s...
11/10/1981
4219660Conjugated diene derivatives
There are disclosed herein derivatives of bisfunctionalized compounds, wherein said compounds have been formed by the introduction of a nitro group and a hydroxyl group in the form of an ester into a conjugated diene molecule by treatment of said conjugat...
08/26/1980
4211727Reduction of carboxylic acid halides to aldehydes
Carboxylic acid halides are reduced to the corresponding aldehydes using zinc borohydride or cadmium borohydride as the reducing agent....
07/08/1980
4036877Process for the production of aldehydes
The invention relates to a process for the preparation of aldehydes by hydrogenating carboxylic chlorides of the general formula RCOCl, wherein R stands for alkyl, isoalkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aromatic, heterocyclic or ...
07/19/1977
3941846Preparation of nitrocarbonyl compounds
A method of preparing a nitrocarbonyl having at least 4 carbon atoms corresponding to the formula: ##EQU1## by contacting a dinitroalcohol having at least 5 carbon atoms corresponding to the formula: ##EQU2## with an alkaline agent at a tem...
03/02/1976
 
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