Patents
Patents for C07C 249 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton (3,537)
07/1993
07/20/1993CA1320499C Process for preparing a ketimine
07/14/1993EP0550965A2 Method for inhibiting thermal decomposition of cycloalkanone oximes
07/13/1993US5227525 Multistep process for the liquid phase ammoximation of carbonyl compounds
06/1993
06/22/1993US5221762 Reacting a phenol with benzolactone compound; then phosgene or thionyl chloride; esterification with alcohol
06/16/1993EP0546906A2 Novel process for preparing 4-amino-5-hexenoic acid
06/16/1993EP0546230A1 Novel process for preparing 4-amino-5-hexenoic acid
05/1993
05/27/1993WO1993010097A1 Nitro compounds having vasodilator activity
05/27/1993CA2123569A1 Nitro compounds having vasodilator activity
05/26/1993EP0543247A1 Method for preparing titanium silicate crystals of zeolite structure and being essentially free of alkali metals
05/25/1993US5214194 Preparation of 5-substituted 2-aminophenols, reaction of nitrone with trichloroacetyl chloride
05/14/1993CA2082464A1 Process for the production of mono- and bis-hydrazones of carbonothioic dihydrazide
04/1993
04/29/1993WO1993008160A1 Process for the preparation of a ketoxime
04/29/1993WO1993008159A1 Process for the preparation of a ketoxime
04/29/1993WO1993008153A1 Cyclohexenone derivates used as herbicides
04/29/1993DE4135265A1 Cyclohexenonderivate Cyclohexenone
04/29/1993CA2121510A1 Cyclohexenone derivatives
04/20/1993CA1316536C Pyridazinone manufacture
04/15/1993WO1993007116A1 Fungicides
04/07/1993EP0535928A2 Process for producing intermediates for use in production of alkoxyiminoacetamides
04/07/1993EP0535057A1 Process for the preparation of ketoximes
03/1993
03/30/1993US5198588 Intermediates for prostaglandins
03/11/1993DE4129757A1 Reaction of gaseous ketone or aldehyde with crystalline nitrogen base (salt) - without solvent, used for purifying waste gas to reduce pollution
03/04/1993WO1993004037A1 Ketoxime carbonates and process for their synthesis
02/1993
02/23/1993US5189218 Preparation of n-phenylbenzoquinone-imine and converting same into p-phenylenediamines
02/23/1993US5189060 Imidate insecticides
02/09/1993US5185342 Alkoxyiminoacetamide derivatives and their use as fungicides
02/02/1993US5183921 Process for producing methoxyiminoacetamide compounds and intermediates
01/1993
01/20/1993CN1068107A Method for preparation of azine
01/12/1993CA1312627C Process for synthesis of arylglyoxal arylimines
01/06/1993CN1067648A Process for reducing couteut of carbon dioxide from reactor of synthesis azine
12/1992
12/16/1992EP0518728A1 Process for reducing the C02-content in reactors for the synthesis of azines
12/10/1992WO1992021649A1 Process for the preparation of 5-(3-butyryl-2,4,6-trimethyl)-2-(1-(ethoxyimino)propyl)-3-hydroxycyclohex-2-en-1-one
11/1992
11/25/1992EP0514831A2 3-(4-Substituted-2-chlorophenoxy)propionaldoxime ethyl ether compounds, their production processes and their compositions for the control of insect pests
11/24/1992US5166416 Propenone oxime ethers, a method of preparing them, and pharmaceutical compositions containing them
11/19/1992EP0514269A1 Imino-derivatives, process for their preparation and their use in human and veterinary medicine and in cosmetics
11/16/1992CA2068696A1 Imine-derived aromatic compounds, process for their preparation and their use in human and veterinary medecine, and in cosmetics
10/1992
10/15/1992WO1992017441A1 Process for conducting chemical reactions with formaldehyde
10/01/1992WO1992016499A1 General synthesis method by photochemical process of cyclopropanic components present in natural pyrethrines and in synthetic pyrethroids and their 1-aza-1,4,6 trianic precursors
09/1992
09/30/1992EP0506149A2 Fungicides
09/16/1992EP0503634A1 Novel terpene derivatives and process for preparing the same
09/16/1992CN1064481A Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them
09/15/1992US5147879 O-(3-amino-2-hydroxypropyl)-hydroximic acid halides and process for preparing the same
09/13/1992CA2062871A1 Novel terpene derivatives and process for preparing the same
08/1992
08/26/1992EP0500111A2 Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them
08/23/1992CA2061214A1 Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them
07/1992
07/30/1992DE4101812A1 Prodn. of new 1-methoxy-imino-3-formyl-cyclopentane derivs. - which are intermediates for prostaglandin E2 and derivs.
07/29/1992EP0496385A1 Multistep process for the liquid phase ammoximation of carbonyl compounds
07/28/1992CA1305727C Process for producing ketoximes
07/14/1992US5130487 Aminopropanol derivatives, process for their preparation and pharmaceutical compositions comprising the same
07/14/1992US5130486 Process for isomerization of oxime ethers
07/08/1992EP0493711A1 Process for the preparation of E-oximethers from phenylglyoxylic acid esters
07/02/1992DE4042283A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/02/1992DE4042282A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/02/1992DE4042280A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/02/1992DE4042273A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/02/1992DE4042272A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/02/1992DE4042271A1 Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
07/01/1992EP0492697A1 Catalytically active gel and a process for its preparation
06/1992
06/23/1992US5124138 Work-up of aqueous mother liquors containing hydrochloric acid, sulfuric acid and their hydroxyl-ammonium and ammonium salts
06/03/1992EP0488645A1 Crystallisation process
05/1992
05/27/1992EP0487160A1 Process for the preparation of azines
05/26/1992US5117060 And adducts with polyisocyanates
05/26/1992US5116994 Modified sytrene-divinylbenzene polymer
05/14/1992WO1992007817A1 Process for producing imines and/or amines from alcohols
05/13/1992CN1061024A Process for producing aliphatic amide and salts thereof
05/12/1992US5112382 Halopropargyl compounds, compositions, uses and processes of preparation
05/06/1992EP0483674A1 A process for producing an aliphatic amide and salts thereof
05/01/1992CA2054491A1 A process for producing an aliphatic amide and salts thereof
04/1992
04/15/1992EP0480000A1 Schiff bases.
04/08/1992CN1060091A Synthesis for 2-hydroxy-glyoxime
04/08/1992CN1016167B Process for preparing 4-halo-3-oxo-2-alkoxyimino butanoic acid ester
04/07/1992US5103058 Catalytic dehydrogenation to aldehyde; refluxing with primary aliphatic amine
03/1992
03/18/1992CN1059515A Herbicidal compounds
03/17/1992US5097058 Reacting isobutyryl-3,4-dimethoxybenzene with alpha-haloester, hydrolyzing, decarboxylating, oximinating, dehydrating
03/10/1992US5095149 Process for producing 4-halogeno-2-alkoxyimino-3-oxo fatty acid
03/03/1992CA1296737C Process for preparing 2-methyl-2- (methylthio)propionaldehyde o-(methylcarbamoyl)oxime as a water-wet cake
02/1992
02/25/1992US5091545 Catalytic oxidation of hydroxy containing aromatic compounds
02/12/1992EP0470460A1 Process for the production of azomethines
02/04/1992CA1295334C 4-halogeno-2-oxyimino-3-oxobutyric acids
01/1992
01/29/1992EP0468775A1 Process for producing methoxyiminoacetamide compounds and intermediates
01/08/1992EP0464381A2 2-Methoxyiminocarboxylic acid esters
12/1991
12/18/1991EP0461797A1 Herbicidal oximethers
12/11/1991EP0460575A1 Aromatic compounds
12/07/1991WO1991018867A1 Process for the preparation of ketoximes
12/07/1991CA2084664A1 Process for the preparation of ketoximes
12/04/1991EP0459660A2 Halopropargyl compounds and the use thereof as microbicides
11/1991
11/26/1991US5068439 N-substituted phenylenediamine compounds
11/25/1991CA2042451A1 Halopropargyl compounds, compositions, uses and processes of preparation
11/14/1991WO1991017139A1 Schiff bases
11/13/1991EP0456133A1 Hydrazones
11/13/1991EP0456068A1 Cyclohexenonoximethers, process and intermediates for their production and their use as herbicides
11/10/1991CA2041630A1 Cyclohexenone oxime ethers, their preparation, intermediates for their preparation and their use as herbicides
10/1991
10/23/1991EP0452697A1 Stabilizer for 4-ethyl-2-hydroxyimino5-nitro-3-hexenamide-containing preparation and stabilizing method therefor
10/23/1991CN1014408B Preparation of 4-halogeno-2-oxyimino-3-oxobutyric acid
10/16/1991EP0452168A1 Process for the preparation of N-phenyl benzoquinone-imine
10/16/1991CN1055355A Stablizer for 4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide-containing preparation, stabilizing method therefor and drug stabilized thereby
10/09/1991EP0449917A1 Explosion-proof 1-dimethylamino-3-dimethylimino-2-arylprop-1-ene salts, process for their preparation, and their use
10/08/1991US5055471 Fungicides
09/1991
09/29/1991CA2038716A1 Stabilizer for 4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide-containing preparation, stabilizing method thereof and drug stabilized thereby
09/18/1991EP0446554A1 Preparation of a N-substituted phenylenediamine
1 ... 23 24 25 26 27 28 29 30 31 32 33 34 35 36