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