Patents for C07B 39 - Halogenation (1,839)
03/1991
03/05/1991US4997946 Process for the iodination of hydroxyaromatic and aminoaromatic compounds
02/1991
02/26/1991US4996371 Method for fluorodecarboxylation
02/26/1991US4996320 Thyroid inhibitors
02/12/1991US4992151 Method for the selective alpha halogenation of alkylaromatic compounds
01/1991
01/30/1991EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins
01/26/1991CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins
01/23/1991EP0408759A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
01/08/1991US4983747 Fluorination with metal fluoride and fluorine gas
12/1990
12/18/1990US4978769 Process for introducing fluorine atoms into aromatic rings by nucleophilic exchange
12/05/1990CN1047491A Process of preparing 1,1-dichloro-1-fluoroethane
11/1990
11/28/1990EP0399705A1 Process for preparing 1,1-dichloro-1-fluoroethane
11/27/1990US4973772 Reacting chloroaromatic compound with alkali metal fluoride in presence of phase transfer agents
11/27/1990US4973771 Phase transfer catalysts
11/27/1990US4973762 Endcapping a polyfluoropolyether with iodide
11/25/1990CA2017345A1 Process for preparing 1-1-dichloro-1-fluoroethane
11/22/1990EP0398774A1 Process for the preparation of brominated derivatives from alcohols
11/20/1990US4971664 Terminal chlorination of normal alkane hydrocarbons
11/07/1990EP0396168A1 Reaction of substrate compounds with fluorine in an eductor
11/02/1990CA2015791A1 Process for the preparation of brominated derivatives, especially from alcohols
10/1990
10/31/1990EP0395342A2 Process for the preparation of fluorine-containing organic compounds
10/30/1990US4966987 Chemical intermediate for fluorinated aromatic compound
10/03/1990EP0253836B1 Preparation of fluoroaromatic compounds in dispersion of potassium fluoride
09/1990
09/26/1990EP0388427A1 Continuous decomposition of diazonium fluorides.
09/05/1990EP0385874A1 Functionalisation at position (n+1) of aryl derivatives disubstituted at position n and (n+2)
09/04/1990US4954662 Selective chlorination of ortho-substituted phenols
09/04/1990US4954648 Method for the bromination of aromatic compound
09/03/1990CA2011348A1 Process for functionalizing n and (n+2) disubstituted arylic derivatives in the (n+ 1) position
08/1990
08/22/1990CN1044808A Method for bromination of aromatic and heterocyclic compounds containing acceptor groups
08/21/1990US4950817 Process for the preparation of 4,4'-dihalobiphenyls
08/21/1990US4950813 Preparation of substituted benzotrichlorides
08/16/1990EP0381702A1 Novel method for oxyiodination product partial purification.
08/01/1990EP0380264A2 Halogenation process
08/01/1990EP0379512A1 Oxyiodination incorporating an iodine generator for the conversion of methyl iodide to iodine.
07/1990
07/23/1990CA2008079A1 Halogenation process
07/18/1990EP0377638A1 Process for the iodination of hydroxyaromatic and aminoaromatic compounds.
07/17/1990US4942231 Method of preparing a chlorinated, brominated, radio-brominated, iodinated and/or radioiodinated aromatic or heteroaromatic compound
07/12/1990WO1990007479A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
07/10/1990US4940807 Selective bromination of aromatic compounds using potassium tribromide
06/1990
06/14/1990WO1990006296A1 Direct fluorination process for making perfluorinated organic substances
05/1990
05/29/1990US4929317 Hydrogen fluoride, fluorine gas, dehydrogenation
05/23/1990EP0369439A2 Use of monolithic honeycomb catalyst carriers in chlorination and oxychlorination reactions
05/22/1990US4927980 Reacting chloroaromatic compound with alkali metal fluoride salts
05/09/1990EP0366797A1 Process for producing organofluorine compound
05/08/1990US4923580 A, a-dibromoalkylarenes, hydrogen bromide, hydrogen peroide
04/1990
04/24/1990US4919458 Device for sealingly mounting tubes which pass through a wall
04/17/1990US4918253 Process for the preparation of 1,2,5,6,9,10-hexabromocyclododecane
04/05/1990WO1990003353A1 Liquid phase fluorination
03/1990
03/27/1990US4912268 Diazotizing an aromatic amine in presence of hydrogen fluoride; thermally decomposition of aryldiazonium fluoride
03/14/1990EP0357671A1 Improved process for preparing aromatic fluorides.
02/1990
02/22/1990DE3828059A1 Process for the preparation of side chain-halogenated alkylbenzene derivatives
02/14/1990EP0354444A2 Process for the introduction of fluorine on aromatic nucleus by nucleophilic exchange
02/07/1990EP0353721A1 Process for preparing fluorinated compounds and products obtainable thereby
02/06/1990EP0357671A4 Improved process for preparing aromatic fluorides.
01/1990
01/25/1990WO1990000535A1 Terminal chlorination of normal alkane hydrocarbons
01/23/1990US4895992 Oxyiodination
01/03/1990EP0348948A2 Process for production of polyfluorocarbon iodide
12/1989
12/19/1989CA1263966A1 Preparation of fluorinated aromatic compounds
12/12/1989US4886920 Diazotization, fluorination of aromatic primary amines in presence of oxidizer and hydrazine, (thio)semicarbazide and salts thereof
12/06/1989EP0344936A1 Method for the bromination of aromatic compounds
11/1989
11/14/1989US4880576 Halogenation of acids, formamide catalysts
11/14/1989CA1262893A1 Process for preparing substituted polycyclo- alkylidene polycyclo-alkanes and the corresponding epidioxy compounds; as well as said substituted polycyclo-alkylidene polycyclo-alkanes and the corresponding epidioxy compounds
11/07/1989US4879068 Process for the preparaiton of alkyl fluorides
11/02/1989WO1989010341A1 Process for producing organofluorine compound
10/1989
10/24/1989US4876376 Halogen-fluorine exchange in hydrofluoric acid without catalyst; plant safening agents
10/11/1989EP0336568A1 Process for the bromination of alkyl benzenes
10/11/1989EP0336567A1 Process for the bromination of alkyl arenes
09/1989
09/27/1989EP0334097A2 Process for the preparation of 4,4'-Dihalogeno-bisphenyls
09/21/1989WO1989008630A1 Method for the halogenation of aromatic compounds
08/1989
08/30/1989EP0330420A1 Process for manufacture of fluoroaromatics
08/08/1989US4855517 Reacting aromatic nitro compounds with bromine in the gas phas e
08/08/1989US4855513 Chlorination of phenolic compounds
08/08/1989US4855112 High efficiency apparatus for aerosol direct fluorination
08/01/1989US4853480 Oxyiodination incorporating an iodine generator for the conversion of methyl iodide to iodine
07/1989
07/26/1989EP0325126A1 Fluorine-containing 1-aryl alkoxytris(dialkyl amino)phosphonium salts, and process for their preparation and their use
07/18/1989US4849552 Preparation of fluoroaromatic compounds in dispersion of potassium fluoride
06/1989
06/28/1989CN1033537A Device for fixing tubes which pass through wall
06/21/1989EP0321341A1 Device for fixing pipes passing through a wall
06/01/1989WO1989004817A1 Continuous decomposition of diazonium fluorides
05/1989
05/23/1989US4833250 Process of converting a carboxylic acid or carboxylic acid halide group to a trihalomethyl group
05/09/1989US4828764 N-Fluoro-N-Perfluoromethyl sulfonamides
05/03/1989EP0314345A1 Novel method for oxyiodination product partial purification
04/1989
04/26/1989CN1032536A Novel method for oxyiodination product partial purification
04/20/1989WO1989003373A1 Novel method for oxyiodination product partial purification
04/18/1989US4822927 Low concentration; agitation, heating, withdrawal
04/12/1989EP0311086A1 N-fluorinated sulfon amides, process for their preparation and their use
04/05/1989EP0309505A1 Process for preparing iodinated aromatic compounds
03/1989
03/28/1989US4816587 Process for the preparation of 2-halogenated ergoline derivatives
03/22/1989EP0307458A1 Processes for isomerizing and oxidative iodinating aromatic compounds.
03/22/1989EP0307457A1 Improved vapor phase bromination of aromatic compounds.
03/22/1989EP0307447A1 Process for preparing iodinated substituted aromatic compounds
03/22/1989EP0307446A1 Liquid phase isomerization of iodoaromatic compounds.
03/21/1989US4814525 Vapor phase bromination of aromatic compounds
03/21/1989US4814467 Chlorine replacement of hetero atom compound
03/15/1989EP0306804A2 Process for the preparation of substituted benzyl trichlorides
03/15/1989CN1031695A Process for the iodination of hydroxyaromatic & aminoaromatic compounds
03/14/1989US4812572 Diazotization in hydrogen fluoride, decomposition under pressure
02/1989
02/23/1989WO1989001465A1 Process for the iodination of hydroxyaromatic and aminoaromatic compounds
02/21/1989US4806698 Liquid phase isomerization of iodoaromatic compounds
02/21/1989US4806697 Non-acidic zeolite catalysts
02/09/1989WO1989000986A1 Oxyiodination incorporating an iodine generator for the conversion of methyl iodide to iodine
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