Class 570/174 - Introducing bromine or iodine

Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process wherein bromine or iodine is introduced into a fluorine
No. of patents: 25
Last issue date: 10/11/2011

Number	Title	Issue Date
8034985	Catalyst for the synthesis of CFCFI A process for the preparation of a fluoroiodoalkane compound represented by the formula: CF3(CF2)n—Y, wherein n is 0 or 1. The process includes contacting A, B and C. A is represented by the formula: CF3(CF2)	10/11/2011
7196236	Direct one-step synthesis of trifluoromethyl iodide A catalytic one-step process for the production of CF3I by reacting, in the presence of a source of oxygen, a source of iodine a reactant of the formula: CF3R where R is —COOH, —COX, —CHO, —COOR2 and —SO...	03/27/2007
7138553	Method for purifying tetrachloroethylene and process for producing hydrofluorocarbons Tetrachloroethylene containing a stabilizer is contacted with a zeolite having an average pore size of 3.4 to 11 Å and/or a carbonaceous adsorbent having an average pore size of 3.4 to 11 Å in a liquid phase to obtain a high purity tetrachloroethylene. A halogen...	11/21/2006
7132578	One-step synthesis of CF-1 A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the for...	11/07/2006
7071367	Direct one-step synthesis of CF-I The present invention provides a process for the preparation of trifluoromethyl iodide. The process includes the step of: contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula:...	07/04/2006
7041859	Method for halogenating or radiohalogenating a chemical compound A method for obtaining a halogenated organic compound, whereby an organotrifluoroborate compound is reacted with a halide ion in the presence of an oxidizing agent to produce the corresponding halogenated organic compound. The method may be used for producing radioh...	05/09/2006
7038095	Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters A mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI wherein Rf represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree...	05/02/2006
6977316	Direct one-step synthesis of trifluoromethyl iodide A catalytic one-step process for the production of CF3I by reacting, preferably in the presence of a source of oxygen, a source of iodine with a reactant of the formula: CF3R where R is —SH, —S—S—CF3, —S...	12/20/2005
6946582	Process for producing fluoroalkyl iodide The present invention provides a process for producing a fluoroalkyl iodide represented by the general formula (II): Rf-CH2CH2I (II) wherein Rf is a perfluoroalkyl or polyfluoroalkyl group comprising 1 to 20 carbons, th...	09/20/2005
6590125	Blue light-emitting polymer prepared using a fluorinated tetraphenyl monomer and an EL device manufactured using the polymer A light-emitting polymer and its preparation method, the polymer being excellent in electron injection and transport ability as well as hole injection and transport ability in an EL device, the EL device manufactured from the polymer being also emittable ...	07/08/2003
6365676	Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF3 (CF2)h --I, where h is an integer from 4 to 18, with a compound having a terminal olefinic group, which comprises conducting s...	04/02/2002
5962754	Method for the preparation of 3-bromo-1,1,1-trifluoropropane 3-bromo-1,1,1-trifluoropropane is produced by reacting 3,3,3-trifluoropropene with hydrogen bromide at elevated temperature, e.g., 150° C. to 800° C., in the presence of an active carbon catalyst. The conversion, yield and selectivity are unexpectedly ...	10/05/1999
5892136	Process for producing iodotrifluoromethane A novel process for producing iodotrifluoromethane is provided which comprises reacting trifluoromethane with iodine in the presence of oxygen by use of a catalyst containing a salt of a metal supported by a carbonaceous carrier. In this process, the cata...	04/06/1999
5734073	Halogenation reactions A method of halogenating an aromatic compound which comprises the steps of reacting an halogenating agent with the aromatic compound in the presence of fluorine and an acid, wherein the halogenating agent is at least one of an iodinating agent, a brominat...	03/31/1998
5545776	Synthesis of n-perfluorooctyl bromide The invention relates to the preparation of n-perfluorooctyl bromide. The continuous process according to the invention consists in reacting bromine with 1-hydroheptadecafluoro-n-octane in the gaseous phase, at a temperature between 450° and 520° C. in ...	08/13/1996
5354916	Low temperature conversion of alkanes The invention relates to a process for selectively producing alkyl halides from alkanes, such as methane and ethane at low temperatures and low pressures. Optional hydrolysis to the corresponding alcohols may follow. The process involves adding an alkane ...	10/11/1994
4973762	Process for production of polyfluoroiodide A polyfluoroiodide is produced by reacting an acid halide of a polyfluorocarbon in a perhalogenated solvent with I2 and at least one salt selected from the group consisting of an alkali metal carbonate and an alkaline earth metal carbonate....	11/27/1990
4942231	Method of preparing a chlorinated, brominated, radio-brominated, iodinated and/or radioiodinated aromatic or heteroaromatic compound The invention relates to a method of preparing a chlorinated, brominated, radiobrominated, iodinated and/or radioiodinated aromatic or heteroaromatic compound, in which the (hetero)aromatic nucleus optionally comprises one or more additional substituents,...	07/17/1990
4760205	2-iodo-perfluoro-2-methylalkanes, processes for their preparation and their use New processes for the preparation of 2-iodo-perfluoro-2-methyl-butane and the corresponding -pentane are described. In one process, perfluoro-2-methyl-2-butene or the corresponding -pentene is reacted in an amount of at least 5 mol with a mixture of 2 mol...	07/26/1988
4513154	Process for consecutive competitive gas phase reaction A process for consecutive-competitive gas phase halogenation of organic compounds, i.e. alkanes, alkenes and benzene, alkyl benzenes and alkenyl benzenes containing labile hydrogens and having no more than 12 and 9 carbon atoms, respectively, in a thin re...	04/23/1985
4446075	Substituted bromofluorobenzene derivatives and process for its manufacture Substituted bromofluorobenzene, wherein the fluorine is in para-position and the bromine in meta-position to another substituent, is prepared by direct bromination of the corresponding fluorobenzene derivative. Bromination is advantageously carried out in...	05/01/1984
4351974	Preparation of 3-bromo-4-fluorotoluene In the preparation of 3-bromo-4-fluorotoluene by reacting 4-fluorotoluene with bromine, the improvement which comprises effecting the bromination in glacial acetic acid in the presence of iodine and iron or an iron salt. As a result the proportion of 3-br...	09/28/1982
4222968	Method for synthesizing fluorocarbon halides A method for synthesizing fluorocarbon halides by effecting a reaction at ambient temperatures between a fluorocarbon acid or its derivative and a halogen fluorosulfate....	09/16/1980
4222967	Process for preparing bromine- and fluorine-containing halogenated hydrocarbons A process for brominating fluorine- and chlorine-containing halogenated hydrocarbons of formula (I) ##STR1## wherein R1 represents hydrogen, fluorine, chlorine, bromine, lower alkyl, or at least partially fluorinated lower alkyl; R2	09/16/1980
4087473	Preferential aliphatic halogenation of ar-substituted alkylbenzenes In an isomeric mixture of ar-substituted-1-(sec-alkyl)benzenes, such as a mixture of 2,4-dichlorocumene and 3,5-dichlorocumene, the alkyl group of the 3,5-isomer reacts preferentially with a halogen in the presence of a catalyst such as benzoyl peroxide t...	05/02/1978

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Class 570/174 - Introducing bromine or iodine