Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 241 - Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
Patents for C07C 241 - Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes (2,288)
11/2000
11/23/2000WO2000069805A1 Processes for preparing pesticidal intermediates
11/14/2000CA1341138C Fluorine-containing chiral smectic liquid crystals
11/02/2000WO2000046235B1 Novel betulinic acid derivatives, processes for preparing such derivatives and its use as cancer growth inhibitors
10/2000
10/04/2000EP0848697B1 Process for the hydrogenation of imines
08/2000
08/24/2000WO2000048988A1 Phenylalaninol derivatives
08/22/2000US6107503 Asymmetric zirconium catalyst
08/10/2000WO2000046235A1 Novel betulinic acid derivatives, processes for preparing such derivatives and its use as cancer growth inhibitors
08/01/2000US6096890 Process for substituted hydrazides using carboxylic acids
07/2000
07/19/2000CN1260345A Hydrazide compound, its preparing method and medicine compositions thereof
07/19/2000CN1054598C Pharmacalogically active hydrazine derivatives and process for preparation thereof
07/11/2000US6087534 Method for synthesizing aryl hydrazine through reduction of a diazo compound derivative
06/2000
06/21/2000EP1010691A2 Hydrazide derivatives, process for their preparation and pharmaceutical compositions containing them
06/21/2000CN1053656C Method for synthetic hydrazine hydrate by ammonia oxyful liquid phase catalytic oxidation process
06/17/2000CA2292246A1 New hydrazide derivatives, the procedure for preparing them and the pharmaceutical formulations that contain them
06/15/2000WO2000034227A1 Process for the preparation of symmetrical diacylhydrazines
05/2000
05/30/2000CA1341010C Compounds useful in preparing fluorine-containing chiral smectic liquid crystals
05/24/2000CN1052717C Preparation of pivaloyl hydrazide
05/04/2000WO2000024697A1 Method for preparation of polyethylene glycol aldehyde derivatives
05/03/2000CN1051993C Production of hydrazine hydrate by urea optimization method
05/02/2000US6057478 Cleavage of sulfur and nitrogen bond to form hydrazine
04/2000
04/13/2000WO2000020381A1 Purification procedure for phenylhydrazines
03/2000
03/29/2000CN1248576A Process for preparing substituted hydrazide by using carboxylic acid
03/22/2000CN1050599C Preparation of 1,2-diacyl-2-(T-alkyl) hydrazines
03/14/2000US6037500 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
03/01/2000EP0982292A2 Process for the preparation of monoacylhydrazines using carboxylic acids
03/01/2000CN1245638A 1,2-alkyl (aryl) acyl aroyl hydrazines insect growth regulator and its preparation and application
03/01/2000CN1049886C Preparation of hydrazine hydrate by calcium-ammonia method
01/2000
01/26/2000CN1242339A Process for prepn. of hydrazine hydrate
12/1999
12/29/1999EP0967210A1 Process for preparing biologically active derivatives of 1,2,4-triazol and intermediaries useful in this process
11/1999
11/25/1999DE19822316A1 Verfahren zur Herstellung von Arylhydrazinen A process for preparing arylhydrazines
11/24/1999EP0959067A1 Process for the preparation of aryl hydrazines
11/18/1999WO1999058446A1 Method for preparing hydrazine hydrate
11/18/1999CA2331058A1 Method for preparing hydrazine hydrate
10/1999
10/21/1999WO1999043643A3 Metal-catalyzed arylations and vinylations of hydrazines, hydrazones, hydroxylamines and oximes
09/1999
09/16/1999WO1999046238A1 Hydrazide fixed to resin and derivative thereof, and method for synthesizing pyrazolones in solid phase
09/02/1999WO1999043643A2 Metal-catalyzed arylations and vinylations of hydrazines, hydrazones, hydroxylamines and oximes
07/1999
07/28/1999EP0918781A4 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral ligands
06/1999
06/15/1999US5912352 Catalytic reduction of hydrazide to hydrazine derivative in presence of complex hydride; acyl migration; hydrogenation; catalyst selectivity
06/02/1999EP0918781A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral ligands
02/1999
02/24/1999CN1209116A Process for propn. of hydrazides
02/17/1999CN1208400A Method for synthesizing aryl hydrazine through reduction of a diazo compound derivative
01/1999
01/12/1999US5859300 Process for the hydrogenation of imines
12/1998
12/08/1998US5847117 Reagent and catalytic process useful for cleaving a protected functional group
11/1998
11/11/1998EP0876331A1 Method for synthesizing aryl hydrazine through reduction of a diazo compound derivative
11/04/1998EP0874806A1 Process for preparation of hydrazides
10/1998
10/21/1998EP0872480A1 Process for the preparation of substituted oxadiazoles
09/1998
09/15/1998US5808154 Process for the production of an aromatic hydrazo compound
08/1998
08/26/1998EP0859591A1 Use of at least one no synthase inhibitor for treating sensitive skin
06/1998
06/24/1998EP0848697A1 Process for the hydrogenation of imines
06/16/1998US5767314 Selective acylation of monoalkylhydrazines
05/1998
05/26/1998US5756752 Process for preparing substituted oxadiazolones
05/12/1998US5750649 Reacting acid and amine in presence of carbodiimide dehydrating agent and n-hydroxy compound; peptides
04/1998
04/07/1998CA1339804C Process for the preparation of acyl isocyanates
03/1998
03/24/1998US5731465 Process for the preparation of tertiary butyl hydrazine hydrohalogenide
03/11/1998CN1175571A Process for preparing 2-naphthylhydrazine in one step
03/04/1998EP0826672A1 Process for the preparation of azine-carboxylic acid chlorides
03/04/1998CN1174834A Process for preparation of acid chloride compounds
02/1998
02/23/1998CA2213584A1 Process for the preparation of acid chloride compounds
01/1998
01/27/1998US5712226 Optically active D-pyridyloxy phenoxy propionate herbicides
01/20/1998CA1339634C Process for the preparation of 4-demethoxydaunomycinone, the aglycone of 4-demethoxy-daunorubicin
01/07/1998CN1169423A Method fro preparing phenylhydrazine hydrochloride
12/1997
12/18/1997WO1997047633A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
12/18/1997CA2258018A1 Asymmetric synthesis catalyzed by transition metal complexes with cyclic chiral phosphine ligands
12/11/1997WO1997046514A1 Process for the preparation of hydrazine derivatives useful as intermediates for the preparation of peptide analogues
11/1997
11/27/1997WO1997044330A1 Process for preparing biologically active derivatives of 1,2,4-triazol and intermediaries useful in this process
11/04/1997US5684197 Reaction of hydrazone with grignard reagents in solvents
10/1997
10/07/1997US5675037 Selective acylation of hydrazines
09/1997
09/30/1997US5672723 Process for preparation of 1-acyl-2-substituted hydrazines
09/17/1997CN1035873C Preparation of amides and peptides
08/1997
08/20/1997EP0790233A2 Method of producing 2-hydrazinonaphtalene compound
08/05/1997CA1339221C Polyhydroxybenzoic acid derivatives
07/1997
07/10/1997WO1997024316A1 Method for synthesizing aryl hydrazine through reduction of a diazo compound derivative
06/1997
06/20/1997WO1997022579A1 Process for preparation of hydrazides
06/20/1997CA2240406A1 Process for preparation of hydrazides
06/18/1997EP0779274A1 Process for the preparation of tertiary butyl hydrazine hydrohalogenide
06/04/1997EP0631571B1 Preparation of optically active hydrazines and amines
05/1997
05/14/1997CN1149578A Method for synthetic hydrazine hydrate by ammonia oxyful liquid phase catalytic oxidation process
05/01/1997WO1997015280A1 Use of at least one no synthase inhibitor for treating sensitive skin
03/1997
03/11/1997CA1338986C Process for the production of monoblocked diisocyanates
03/04/1997US5607977 Benzoylureas
02/1997
02/25/1997CA1338940C Ó,ó-disubstituted n-cycloalkylalkylbenzylamines, process for their preparation, their use as a medicament and their synthesis intermediates
02/13/1997WO1997005095A1 Process for the hydrogenation of imines
02/04/1997US5599992 Diazotizing 2-fluoroaniline ; reducing; hydrolysis; neutralization
12/1996
12/17/1996US5585521 Process for the preparation of alkylhydrazine salts
11/1996
11/12/1996CA1338714C Insecticidal diacylhydrazine compounds and novel substituted and unsubstituted benzoic acid 1-alkyl, 2-alkyl and 2-cycloalkylhydrazides
10/1996
10/01/1996CA1338625C Tricyclic compounds
08/1996
08/06/1996US5543571 Preparation of optically active hydrazines and amines
07/1996
07/31/1996EP0723953A1 Process for the preparation of 2-fluorophenylhydrazine
07/31/1996EP0723441A1 Aminimide-containing molecules and materials as molecular recognition agents
07/16/1996US5536816 Process for producing amides using catalytic amounts of an N-hydroxy compound
07/10/1996CN1032254C Selective acylation of hydrazines
06/1996
06/18/1996US5527824 Substituted Di-T-Butlyphenols useful for inhibiting leukotriene synthesis
05/1996
05/28/1996US5520757 Preparing a mixture of nitrato esters of nitramines
04/1996
04/30/1996CA1338289C Insecticidal n'-substituted-n-alkylcarbonyl- n'-acylhydrazines
04/03/1996EP0704427A1 Process for the preparation of alkylhydrazine salz
03/1996
03/12/1996US5498745 Antiallergen intermediates, inhibitors of leukotrienes, lipoxygenase inhibitors
02/1996
02/27/1996US5495043 Substituted di-t-butylphenols
11/1995
11/21/1995US5468857 Fungicides
11/08/1995CN1111237A Preparation of amides and peptides
10/1995
10/18/1995CN1110272A Proces for producing hydrazine hydrate by urea optimization method
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