Patents for C07B 39 - Halogenation (1,839)
01/1989
01/25/1989EP0189448B1 Agent for the fluoridation of organic compounds particularly acetylenic compounds, preparation process thereof and utilization thereof in nucleophilic substitution or addition reactions
01/18/1989EP0299891A1 Process for the selective chlorination of phenolic compounds
01/18/1989EP0299890A1 Process for the chlorination of phenolic compounds
01/18/1989EP0299270A1 Bromination process
01/03/1989US4795737 Process for the iodination of aromatic compounds over solid catalysts
12/1988
12/28/1988CA1247634A Process for preparing aromatic bromine compounds
12/27/1988US4794178 Carrier-free
12/20/1988US4792642 Oxygen atmosphere, non-acid zeolite catalysts
12/20/1988US4792641 Process for preparing iodinated aromatic compounds
12/20/1988CA1247138A1 Simultaneous esterification and fluoration process
12/20/1988CA1247131A1 Process for preparing compounds containing a difluoromethylene or a trifluoromethyl group
11/1988
11/29/1988US4788356 Iodination of benzene, naphthalene, or biphenyl; separation, recovering; catalysis with zeolite type x
11/29/1988US4788355 Oxyiodination catalyst
11/15/1988US4785121 Halogenation of nitrophthalic anhydride with arylphosphorus tetrahalide
11/08/1988US4783562 Process for the preparation of trichloromethyl-substituted aromatic compounds, and trichloromethyl-substituted aromatic compounds obtained in this process
11/08/1988US4783526 Reacting sucrose with tritylating agent; acetylation, dealkylation, isomerization, and deacetylation
11/02/1988EP0289180A2 Method of chlorination
11/02/1988CN88101781A Process for preparing iodinated substituted aromatic compounds
11/01/1988CA1244055A1 Process for preparing primary and-or tertiary allyl halides
10/1988
10/25/1988US4780559 Reacting quaternary phosphonium bifluoride with organic halides
10/20/1988WO1988007987A1 Improved process for preparing aromatic fluorides
10/19/1988EP0287007A2 Process for cleaving aliphatic ether compounds
10/18/1988US4778940 Reacting iodine in presence of oxygen over zeolite catalyst
10/18/1988US4778939 Reacting iodine, aromatic ring and oxygen in presence of non-acidic zeolite catalyst impregnated with alkali or alkaline earth metal salt
10/12/1988EP0164619B1 2,4,5-trihalo or 2,3,4,5-tetrahalo benzene derivatives and process for producing them
10/06/1988WO1988007513A1 Improved vapor phase bromination of aromatic compounds
10/06/1988WO1988007512A1 Process for preparing iodinated aromatic compounds
10/06/1988WO1988007511A1 Processes for isomerizing and oxidative iodinating aromatic compounds
10/06/1988WO1988007510A1 Liquid phase isomerization of iodoaromatic compounds
10/06/1988WO1988007509A1 Process for preparing iodinated substituted aromatic compounds
10/04/1988CA1242742A1 2,4,5-trihalogeno- and 2,3,4,5-tetrahalogenobenzene
09/1988
09/28/1988CN88101242A Method of converting a carboxylic acid group to a trihalomethyl group
09/21/1988EP0283411A1 Process for chlorinating phenolic compounds
09/21/1988EP0283270A2 Processes using a phosphorus complex
09/14/1988EP0281965A1 Method of converting a carboxylic acid or carboxylic acid halide group to a trihalomethyl group
07/1988
07/06/1988EP0273736A2 Shaped zeolite catalyst for liquid phase organic reactions
06/1988
06/28/1988US4754087 Reacting hydrogen halide with terminal conjugated diene using cuprous halide-salt catalyst
06/28/1988US4754080 N-halodialkylamines for halogenating phenols
06/15/1988EP0271272A2 Process for preparation of perfluoro organic compounds
05/1988
05/31/1988US4748277 Process for the preparation of trifluoromethylanilines
04/1988
04/26/1988US4740629 Excess bromine, zirconium halide catalyst
04/19/1988US4739057 Using an arylphosphorushalide
03/1988
03/29/1988US4734526 Ammonium dihydrogenotrifluorides
03/09/1988EP0258985A1 Process for preparing fluoroaromatic compounds
03/08/1988US4730046 Preparation of aryl halides
02/1988
02/23/1988US4727187 Catalytic fluorination of dichloroalkyl phenyl ether
02/16/1988USRE32606 Process for the complete bromination of non-fused ring aromatic compounds
01/1988
01/12/1988CA1231332A1 Nuclear chloration of aromatic hydrocarbons with a catalytic composition containing a lewis acid and an n-substituted phenothiazine derivative
01/07/1988EP0251732A2 Process for the preparation of 2-halogenated ergoline derivatives
01/07/1988EP0251246A1 Process for converting organohydroxyl compounds to halides
12/1987
12/29/1987US4716231 Chlorination of 2-methoxynicotinic acid
12/16/1987EP0249257A1 Preparation of aryl halides
11/1987
11/10/1987US4705847 Polycycloalkylidene-polycycloalkanes, epidioxy derivatives thereof and method of preparation
11/10/1987US4705650 Process for the preparation of compounds halogenated α to an electron-attracting group
11/03/1987US4704483 Fluorination with potassium fluoride
09/1987
09/29/1987US4697011 N-fluoro-N-perfluoromethyl sulfonamides
09/22/1987US4695657 Process for preparing compounds containing a difluoromethylene group in a position α to an oxygen atom
08/1987
08/04/1987US4684734 Method for manufacture or organic fluorine compounds
07/1987
07/21/1987CA1224485A1 ELECTRO-ATTRACTIVE GROUP .alpha.-HALOGENATED COMPOUNDS PREPARATION METHOD
07/16/1987WO1987004151A1 Preparation of fluoroaromatic compounds in dispersion of potassium fluoride
07/16/1987WO1987004150A1 Catalytic method for producing fluoroaromatic compounds using substituted pyridinium salts
07/16/1987WO1987004149A1 Phase transfer catalysts
07/16/1987WO1987004148A1 Catalytic method for producing fluoroaromatic compounds using branched alkyl pyridinium salts
07/07/1987CA1223893A1 Chlorination of aromatic derivatives
06/1987
06/23/1987US4675447 Chlorination with sulfuryl chloride; lewis acid catalyst
05/1987
05/27/1987EP0223421A2 Chlorination of carbohydrates and other alcohols
05/26/1987US4668830 Process for the preparation of compounds containing a difluoromethylene or trifluoromethyl group
04/1987
04/28/1987US4661648 Decachlorobutane and octachlorobutenes
04/21/1987US4659840 Method for preparing diaryl iodonium salts
03/1987
03/17/1987CA1219287A1 Simultaneous halogenation and fluoridation process of aromatic derivatives
03/17/1987CA1219281A1 Halogenation-nitration-fluoration of aromatic derivatives
03/11/1987EP0214068A1 Process for the preparation of fluorinated aromatic compounds
02/1987
02/25/1987EP0211578A2 N-fluoro-N-perfluoromethyl sulfonamides
02/17/1987US4643812 Photochemical process for the hydrobromination of olefinic double bonds
02/10/1987US4642398 Preparation of fluoronitrobenzene compounds in dispersion of potassium fluoride
01/1987
01/06/1987US4634778 Process for preparing chlorinated ethylenic derivatives
01/06/1987US4634771 Method for converting carboxylic acid groups to trichloromethyl groups
12/1986
12/23/1986US4631151 Method for production of fluorine-containing aromatic derivative
12/10/1986EP0204535A1 N-fluoropyridinium salt and process for preparing same
12/09/1986CA1215070A1 Process for preparing chlorinated ethylenic derivatives
11/1986
11/04/1986US4621160 Process for the chlorination of aromatic derivatives
08/1986
08/28/1986WO1986004893A1 Process for the preparation of alkyl fluorides
08/20/1986EP0106863B1 A process for preparing substituted polycyclo-alkylidene polycyclo-alkanes as well as said substituted polycyclo-alkylidene polycyclo-alkanes
08/13/1986EP0190523A1 Process for the preparation of compounds bearing a difluoromethylene or trifluoromethyl group
08/06/1986EP0189448A1 Agent for the fluoridation of organic compounds particularly acetylenic compounds, preparation process thereof and utilization thereof in nucleophilic substitution or addition reactions.
07/1986
07/23/1986EP0188154A1 Simultaneous esterification and fluorination process
07/15/1986US4600787 Process for the preparation of aromatic compounds which contain perfluorinated side-chains bonded via a heteroatom
07/09/1986EP0187023A2 Process for the preparation of organic fluorides
06/1986
06/25/1986EP0185559A1 Process for the preparation of primary and/or tertiary alkyl halides
05/1986
05/28/1986EP0182111A1 Process for the preparation of perhalogenated compounds
04/1986
04/15/1986US4582948 3-chloro-4-fluoro-5-nitrobenzotrifluoride
03/1986
03/11/1986US4575571 Halogen in liquid hydrogen fluoride
03/05/1986EP0173390A1 Process for the substitutive chlorination of organic compounds with molecular chlorine in the presence of a chlorinated product as an iniator, and theuse of such an iniator
03/05/1986EP0173201A1 Process for preparing aromatic bromo compounds
02/1986
02/19/1986EP0172066A1 Process for the preparation of halogenated compounds in the alpha position with respect to an electroattractive group
02/04/1986US4568781 Preparation of fluorine-substituted aromatic compounds
01/1986
01/28/1986US4567280 Nitrogen dioxide; by-product inhibition
01/16/1986WO1986000294A1 Agent for the fluoridation of organic compounds particularly acetylenic compounds, preparation process thereof and utilization thereof in nucleophilic substitution or addition reactions
01/15/1986EP0168344A1 Process for the preparation of alpha, alpha-difluoroalkyl phenyl ether derivatives
01/15/1986EP0168119A1 Chemiluminescent substituted epidoxy-polycycloalkyl polycycloalkanes and process for preparing these compounds
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