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