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| Number | Title | Issue Date |
| 7425646 | Fluorinated adamantane derivative A compound represented by the formula AF(—COF)n, provided that AF and n have the following meanings. AF: a fluorinated adamantane residue which is an n-valent group having an n number of hydrogen atoms removed fro... | 09/16/2008 |
| 7375253 | Process for the preparation of (per)fluorinated mono-functional carbonyl compounds A process for the synthesis of (per)fluorinated mono-functional carbonyl compounds having the following formula (I): F-A-RF—B—C(O)X1 (I) wherein: X1=F, CF3; A, B equal to or... | 05/20/2008 |
| 7371898 | Methods for producing carbonyl fluoride and apparatus for production A method for producing carbonyl fluoride by continuously supplying carbon monoxide and fluorine into a reaction chamber together with a diluent gas and letting them react with each other, where hydrogen fluoride or carbonyl fluoride is used as the diluent gas. ... | 05/13/2008 |
| 7371899 | Method for producing carbonyl fluoride To provide a method for producing carbonyl fluoride by employing carbon monoxide and fluorine as starting materials, without such a problem as vigorous heat generation or a decrease in the reaction yield due to a side reaction. ... | 05/13/2008 |
| 7365229 | Peroxidic perfluoropolyethers Peroxidic perfluoropolyethers having formula: X1—O(CF2O)n1(CF2CF2O)m1(CF2(CF2)zCF2O)p1(O)h—X2 (I) | 04/29/2008 |
| 7230140 | Perfluoropolyether derivative A novel perfluoropolyether derivative which is less likely to undergo decomposition, which is free from a problem of deterioration during its use, and which is useful as a lubricating oil or a coating agent, is provided. A compound represented by the followin... | 06/12/2007 |
| 7083705 | Process for producing a fluorine-containing compound by liquid phase fluorination The invention provides a process for producing a fluorine-containing compound from an inexpensive material. Namely, Compound I such as RACH2OH is reacted with Compound II such as XCORB to form Compound III such as RA | 08/01/2006 |
| 7071272 | Method for preparing unsaturated compound by pyrolysis reaction The present invention provides a method for preparing a compound of CF3CF2CF2OCF═CF2 by pyrolyzing a compound expressed by CF3CF2CF2OCF(CF3)COOCF2CF(CF3)O... | 07/04/2006 |
| 7053238 | Process for producing fluorinated polyvalent carbonyl compound A fluorinated polyvalent carbonyl compound is produced by an economically advantageous method from inexpensive materials without requiring a complicated synthetic process step. Namely, the present invention comprises reacting a polyvalent alcohol having at least two... | 05/30/2006 |
| 6969776 | Process for producing fluorinated ketone The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process. Namely, it is a process for producing a fluorinated ketone of the follow... | 11/29/2005 |
| 6956138 | Method for producing a fluorine-containing compound The present invention provides a method for obtaining a compound useful as a raw material for various fluororesins in high yield by a short process by using a starting material which is inexpensive and readily available. ... | 10/18/2005 |
| 6919480 | Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether. Namely, it provides a process for preparing a fluorinated acyl fluoride (3), which comprises reacting a compound (1) having a fluorine cont... | 07/19/2005 |
| 6803488 | Process for producing fluorinated ketone The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process. Namely, it is a process for producing a fluorinated ketone of the follow... | 10/12/2004 |
| 6747174 | Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether. Namely, it provides a process for preparing a fluorinated acyl fluoride (3), which comprises reacting a compound (1) having a fluorine cont... | 06/08/2004 |
| 6723874 | Method of producing acid fluorides from acid chlorides Acid fluorides, for example carboxylic acid fluorides and sulfuryl fluoride are produced by reacting the corresponding acid chlorides with hydrogen fluoride adducts of ammonium fluoride or amine hydrofluorides (which act as a catalyst or as a fluorination agent). Co... | 04/20/2004 |
| 6613929 | Process for preparation of fluoroformates A process for the preparation of fluoroformates of the formula ##STR1## wherein R1 is a saturated or unsaturated, substituted or unsubstituted and primary or secondary aliphatic, a saturated or unsaturated, substituted or unsubstituted secondar... | 09/02/2003 |
| 6586626 | Process for producing a fluorine-containing compound by liquid phase fluorination The invention provides a process for producing a fluorine-containing compound from an inexpensive material. Namely, Compound I such as RA CH2 OH is reacted with Compound II such as XCORB to form Compound III such as RA | 07/01/2003 |
| 6420601 | Process for the preparation of 3,5-bis(trifluoro-methyl)-benzoyl chlorides and novel 3,5-bis(tri-halogenomethyl)-and 3,5-dimethylbenzoyl halides 3,5-Bis(trifluoromethyl)benzoyl chlorides optionally substituted with fluorine or chlorine are advantageously prepared by converting 3,5-dimethylbenzoic acids optionally substituted with fluorine or chlorine into the corresponding acid chlorides; complete... | 07/16/2002 |
| 6166252 | Process for preparing dichlorofluoroacetyl halides Process for preparing dichlorofluoroacetylfluoride (CFCl2 COF) comprising the following steps: a) fluorination with hydrofluoric acid (HF) of the trichloroacetyl halide in a fixed or fluidized tubular bed reactor, filled with fluorination catal... | 12/26/2000 |
| 6023002 | Process for preparing hydrofluoroethers Described is a reaction of a fluorinated alkoxide with an alkyl fluorovinylalkyl ether, the alkyl fluorovinylalkyl ether having alpha-beta carbon-carbon unsaturation relative to the ether oxygen, to produce a hydrofluoroether.... | 02/08/2000 |
| 5780672 | Process for the selective preparation of monofluoro derivatives A process for the preparation of compounds of the formula (1) in which R1, R2 and R3 are as defined in the specification, which includes reacting alcohols or carboxylic acids of the formula (2) in which R1, R | 07/14/1998 |
| 5750779 | Preparation process of acyl halide or sulfonyl halide A preparation process of acyl halide or sulfonyl halide which comprises reacting corresponding carboxylic acid or sulfonic acid with a haloiminium salt represented by the general formula (1): ##STR1## wherein R1 and R2 are same ... | 05/12/1998 |
| 5672748 | Process for preparing trifluoroacetyl fluoride The invention relates to the preparation of trifluoroacetyl fluoride by reacting trichloroacetyl chloride with anhydrous hydrogen fluoride in the gaseous phase on a catalyst which is obtainable by reacting a water-soluble chromium (III) salt with magnesiu... | 09/30/1997 |
| 5648530 | Manufacture of carbonyl floride Carbonyl fluoride is produced by reacting fluorine-containing compound such as metal fluoride with CO in an excited state, such as produced by a plasma, to obtain a gaseous reaction mixture, which can then be quenched to obtain the COF2.... | 07/15/1997 |
| 5633399 | Process for the preparation of fluorinated benzoic acids A process for the preparation of 2-chloro-4,5-difluorobenzoic acid and 2,4,5-trifluorobenzoic acid as well as synthetic intermediates useful in and prepared according thereto, comprising reacting a nitrobenzene having the formula ##STR1## wherei... | 05/27/1997 |
| 5569782 | Process for preparing polyfluorochlorocarbonyl chlorides and perfluorocarbonyl chlorides with addition of chlorine A process for preparing polyfluorochloro- and perfluorocarbonyl chlorides, for example for preparing perfluoropropionyl chloride, chlorodifluoroacetyl chloride or trifluoroacetyl chloride, in which starting materials are employed which have a CHCl2 | 10/29/1996 |
| 5466877 | Process for converting perfluorinated esters to perfluorinated acyl fluorides and/or ketones A process for converting perfluorinated carboxylic acid esters to perfluorinated acyl fluorides and/or perfluorinated ketones comprises the step of combining at least one perfluorinated carboxylic acid ester with at least one initiating reagent selected f... | 11/14/1995 |
| 5362909 | Process for the preparation of 3-chloro-2,4,5-trifluorobenzoyl chloride, 2,4,5-trifuluorobenzoyl fluoride, and 2,3,4,5-tetrahalogenobenzene derivatives 2,4,5-Trihalogenobenzene derivatives of the formula ##STR1## in which R is --COOH, --COCl, --COF, --CN, --CONH2, --CH2 OH, --CH2 Cl, --CHCl2, --CCl3 or --CHO, R1 is H, Cl or F, and R2 | 11/08/1994 |
| 5241115 | Carbonyl difluoride preparation A method for the preparation of carbonyl difluoride which comprises contacting carbonyl chloride fluoride with an active carbon catalyst.... | 08/31/1993 |
| 5047584 | Process for the preparation of pentahaloethoxy benzoyl halide compounds A process for the preparation of pentahaloethoxy benzoyl halide compounds comprising A) chlorinating p-cresyl trifluoroacetate to form p-, -dichloro-ଲ-,ଲ-,ଲ-trifluoroethoxy benzotrichloride; B) converting the p-, &#x... | 09/10/1991 |
| 4985556 | Perfluoro(dialkylaminopropene) derivatives Perfluorocarboxylic acid fluorides represented by the formula A-B, wherein A is either ##STR1## and B stands for a perfluoro-di-substituted amino group, and perfluoro(dialkylaminopropenes) represented by the formula A"-B", wherein A" stands for ... | 01/15/1991 |
| 4973740 | Process for producing tricyclodecanecarboxylic acid esters A process for producing a tricyclodecanecarboxylic acid ester by reacting dihydrodicyclopentadiene with CO and an alcohol in the presence of anhydrous HF is disclosed. The reaction is performed in a solvent at a temperature of from -20° to 60° C. under ... | 11/27/1990 |
| 4851160 | Process for the preparation of benzoic acid derivatives A process for the preparation of a compound of the formula ##STR1## in which X1 and X2 each independently is chlorine or fluorine, and Y is chlorine, bromine, fluorine or iodine, comprising subjecting a compound of the formula ... | 07/25/1989 |
| 4832879 | Substituted 3-fluoroalkoxybenzoyl halides and their preparation Novel substituted 3-fluoroalkoxybenzoyl halides of the formula ##STR1## where Hal is fluorine or chlorine, R1 is chlorodifluoromethyl, difluoromethyl, 1,1,2,2-tetrafluoroethyl, 2-bromo-1,1,2-trifluoroethyl, pentafluoroethyl or 1,1,2,3,3,3-... | 05/23/1989 |
| 4755621 | Process for the preparation of 2,3,5,6-tetrafluorobenzoic acid, and the new compounds 2,3,5,6-tetrachloro-4-trifluoromethyl-benzoyl chloride and 2,3,5,6-tetrafluoro-4-trifluoromethyl-benzoyl fluoride 2,3,5,6-Tetrafluorobenzoic acid is prepared from 4-trifluoromethyl-benzoyl fluoride by chlorination, fluorination, hydrolysis, decarboxylation and saponification. The new compounds 2,3,5,6-tetrachloro-4-trifluoromethyl-benzoyl chloride and 2,3,5,6-te... | 07/05/1988 |
| 4749526 | Process for preparing fluoraliphatic ether-containing carbonyl fluoride compositions Fluoroaliphatic ether-containing carbonyl fluoride compounds are prepared by reacting a fluorinated carbonyl compound with hexafluoropropylene oxide in the presence of at least one catalyst selected from potassium iodide, potassium bromide, cesium iodide,... | 06/07/1988 |
| 4626601 | Preparation of 4-fluoro-3-phenoxy-benzal-dehyde acetals and intermediates therefor The new compound ##STR1## is prepared and converted to the new acetal ##STR2## which is reacted with an alkali phenolate or alkaline earth metal phenolate in the presence of copper or a copper compound as a catalyst and in the presence of a... | 12/02/1986 |
| 4623491 | Process for the preparation of halogenated aliphatic carboxylic acid fluorides Halogenated aliphatic carboxylic acid fluorides are prepared by reacting halogenated aliphatic carboxylic acids with trihalogenomethyl aromatic compounds containing, as a predominant total or exclusively, fluorine atoms in the trihalogenomethyl groups, in... | 11/18/1986 |
| 4590016 | Preparation of fluoromethylthiobenzoyl fluorides Novel fluoromethylthiobenzoyl fluorides are prepared by reacting a trichloromethylthiobenzoyl chloride with hydrogen fluoride at from 10° to 130° C., and are useful starting materials for the preparation of crop protection agents. The process of the inv... | 05/20/1986 |
| 4590293 | Process and apparatus for further processing of pressurized exothermic reactions An exothermic reaction's heat of a low-temperature reaction is used for further processing of the product mixture, for example, to separate the product from the reaction mixture.... | 05/20/1986 |
