Patents for C07B 39 - Halogenation (1,839)
06/1995
06/14/1995EP0657457A1 Novel fluorinated diazabicycloalkane derivatives
06/01/1995WO1995014646A1 The preparation of dicarbonyls
05/1995
05/16/1995US5416235 Preparation of substituted aryl compounds
05/11/1995DE4337712A1 Process for fluorinating functional organic compounds by means of cobalt trifluoride under mild conditions
05/03/1995EP0650948A1 Fluorinating reagent and fluorinating method
04/1995
04/27/1995DE4415196C1 Improved process for the preparation of 2-amino-6-chloropurine and 2-acylamino-6-chloropurines
04/19/1995EP0642483A4 Chlorination and elimination process and some products thereof.
04/05/1995EP0646557A1 Fluorination in tubular reactor system
04/05/1995CA2131497A1 Fluorination in tubular reactor system
03/1995
03/22/1995EP0441807B1 Liquid phase fluorination
03/21/1995US5399718 Removal of hydrofluoric acid by-product
03/15/1995EP0642483A1 Chlorination and elimination process and some products thereof
02/1995
02/22/1995EP0639556A1 Process for the preparation of trifluoromethylanilines
02/21/1995US5391811 Reacting a halogenated dicarbonyl compound with an addition product of hydrogen fluoride and a trialkyamine
02/21/1995CA2130504A1 Process for preparing trifluoromethylanilines
02/08/1995CN1098405A Process for preparing chloromethylpyridines
02/07/1995US5387725 Chlorinating compounds having acidic protons with a perchloro-alkane and aqueous base in the presence of a tetraalkyl-ammonium hydroxide phase transfer catalyst
01/1995
01/24/1995US5384415 Bromination with cleavage of carbon oxygen bond
01/11/1995EP0632799A1 Process for producing chlorine-substituted olefine compounds.
01/11/1995CN1027371C Synthetizing method for inner ester diterpenoid
01/04/1995EP0632025A1 Process for the preparation of chloromethylpyridines
12/1994
12/20/1994US5374732 Chemical intermediates as fluorination agents
11/1994
11/22/1994US5367071 Process for preparing difluorinated diazoniabicycloalkane derivatives
11/08/1994US5362919 Direct fluorination process for making perfluorinated organic substances
10/1994
10/27/1994WO1994024098A1 Ξ-fluorosulphonimides, method of preparing them and their use as fluorination agents
10/27/1994DE4413405A1 Process for synthesising polymeric catalyst supports based on silica gel and doping thereof with metal compounds
10/27/1994CA2160994A1 N-fluorosulphonimides, method of preparing them, and their use as fluorination agents
10/25/1994US5359089 Reacting vinamidinium salt with glycine ester to form 4-cyanopyrrole-2-carboxylic acid, hydrolyzing, brominating
10/11/1994US5354439 Process for the synthesis of fluorinated derivatives
09/1994
09/29/1994DE4309276A1 Process for the selective fluorination of functional organic compounds by means of cobalt trifluoride
09/28/1994EP0514472B1 Halogenation of aromatic amine compounds
09/22/1994DE4308562A1 Process for the preparation of aromatic bromomethyl compounds
09/14/1994CN1092055A Catalytic fluorating method
09/01/1994WO1994019299A1 Improved process for manufacture of fluoroaromatics
08/1994
08/31/1994EP0612707A1 Procedure for the photochlorination of alkyl-aromatic compounds
08/24/1994EP0611366A1 Chlorination process, alkylation of products of said process and some products thereof
08/24/1994CN1091127A Debrominative chlorination of pyrroles
08/10/1994EP0609200A1 Direct fluorination process for making perfluorinated organic substances
08/02/1994US5334788 Reaction of substrate compounds with fluorine in an eductor
07/1994
07/26/1994US5332790 Liquid-phase fluorination
06/1994
06/28/1994US5324841 Reacting with chlorine radical so that hydrogen chloride and/or hydrochloride salt are formed; neutralization
06/21/1994US5322904 Liquid-phase fluorination
06/21/1994US5322903 Liquid-phase fluorination
06/08/1994EP0600157A1 Debrominative chlorination of pyrroles
05/1994
05/31/1994CA2110089A1 Debrominative chlorination of pyrroles
05/25/1994EP0598338A1 Process for the preparation of 1,3 - difluorbenzene
05/24/1994US5315043 Aromatic nucleophilic fluorination
05/24/1994US5315018 Process for the functionalization of organic molecules
05/19/1994CA2103303A1 Process for preparing 1,3-difluorobenzene
05/18/1994EP0597329A2 Process for the preparation of alpha-fluor-beta dicarbonyle compounds
05/17/1994US5312982 Process for the preparation of β-halogeno-tert.-alkyl-carboxylic acid chlorides
05/17/1994US5312958 Process for producing 4-bromomethylbiphenyl compounds
05/11/1994WO1994010120A1 Process for producing fluorinated dicarbonyl compound
05/11/1994EP0596684A1 Preparation of substituted aryl compounds
05/11/1994EP0596395A1 Fluorinated benzils and process for their preparation
05/05/1994CA2102357A1 Fluorinated benzils and a process for their preparation
05/04/1994EP0595150A1 Process for the preparation of aromatic bromomethylcompounds
05/04/1994EP0594758A1 Novel process for aromatic bromination
04/1994
04/30/1994CA2109470A1 Process for the preparation of aromatic bromomethyl compounds
04/05/1994US5300201 Photochlorination of phthalic anhydride
03/1994
03/02/1994EP0584074A1 A process for the production of ethylene or a mixture of ethylene and vinyl chloride.
03/01/1994US5290413 Molten potassium fluoride-hydrogen fluoride electrolyte, current collector with hollow portion, anode with cylindrical nongraphitic carbon portion, current carrier comprising metal sleeve and means for applying circumferential compression
02/1994
02/17/1994WO1994003414A1 Fluorinating reagent and fluorinating method
02/08/1994CA1326869C Wall retaining device for traversing tubes
01/1994
01/26/1994EP0357671B1 Improved process for preparing aromatic fluorides
12/1993
12/08/1993EP0572918A1 Process for selectively ortho-fluorinating substituted aromatic compounds
11/1993
11/30/1993US5266295 Hydrogen peroxide oxidation of bromide to bromide
11/23/1993US5264629 N-fluoro-n-perhaloalkyl-alkoxy amines or n-perhaloalkyl-alkoxy amines; useful as polymerization catalyst for tetrafluoroethylene
11/03/1993EP0567848A1 Process for the alpha-chlorination of arylethern
11/03/1993EP0567847A1 Halogenation process in advantageous solvents
10/1993
10/20/1993EP0566268A1 Process for the preparation of 3- or 5-fluoroaromatic compounds
10/19/1993US5254732 Stable electrophilic fluorinating agents
09/1993
09/30/1993WO1993019034A1 Process for producing chlorine-substituted olefine compounds
09/30/1993DE4209497A1 Verfahren zur Herstellung von chlorsubstituierten olefinischen Verbindungen A process for preparing chlorine-substituted olefinic compounds
09/30/1993DE4209324A1 Prepn. of branched hydrocarbon cpds. - by reaction of unsatd. fatty acid or ester or olefin, with halogen cpd., using metal salt catalyst, for use in lubricants and additives for synthetics and prepn. of polyamide(s)
09/30/1993CA2132205A1 Process for the preparation of chlorine-substituted olefins
09/29/1993EP0388427B1 Continuous decomposition of diazonium fluorides
09/28/1993US5248817 With N-bromosuccinimide or dibromodimethylhydantoin in an aqueous alkali; antipsychotic intermediate
09/15/1993EP0560157A1 Fixed bed reactors with short catalyst bed in the direction of flow
09/01/1993EP0557967A1 Method of side-chain chlorination of 2-chloro-methylpyridine
08/1993
08/31/1993US5241086 Containing an alcohol with thionyl chloride phosgene or phosphorous oxychloride and brominating resulting reaction product
08/25/1993EP0557167A1 Preparation of fluorinated functional compounds
08/18/1993CN1075313A Preparation of fluorinated functional compounds
08/17/1993US5237087 Process for the preparation of chlorinated and fluorinated benzene compounds by selective nucleophilic fluorodenitration
08/13/1993CA2087390A1 Preparation of fluorinated functional compounds
08/10/1993US5235000 Maintaining an inert atmosphere containing a low carbon monoxide concentration over the bromine chloride to prevent formation of carbonyl halide
08/04/1993EP0553879A2 Process for producing 4-bromomethylbiphenyl compounds
08/03/1993US5233105 Process for halogen-fluorine exchange in organic compounds and catalysts for this process
08/03/1993US5233074 Process for selectively ortho-fluorinating substituted aromatic compounds
07/1993
07/22/1993WO1993009074A3 Chlorination process, alkylation of products of said process and some products thereof
07/13/1993US5227560 Vinylene or exomethylene groups from active methine compounds
07/07/1993EP0379512B1 Oxyiodination incorporating an iodine generator for the conversion of methyl iodide to iodine
06/1993
06/23/1993EP0547971A1 Method of hydroxylation of activated aromatic molecules
06/23/1993EP0547930A1 Improved liquid-phase fluorination process and organic fluorinated products resulting therefrom
06/16/1993EP0546697A1 Process for the bromination of deactivated toluenes in the benzylic position
05/1993
05/18/1993US5212301 Fluorination
05/18/1993CA1317966C Preparation of substituted benzotrichlorides
05/13/1993WO1993009078A1 Chlorination and elimination process and some products thereof
05/13/1993WO1993009074A2 Chlorination process, alkylation of products of said process and some products thereof
05/13/1993CA2122465A1 Chlorination process, alkylation of products of said process and some products thereof
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