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| Number | Title | Issue Date |
| 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 |
| 7034181 | Method for producing o-chloromethyl benzoic acid chlorides The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R1 to R4 can be the same or different and represent hydrogen C1–C4 alkyl, halogen or trifluoromethyl, by reac... | 04/25/2006 |
| 6969576 | Photosensitive dissolution inhibitors and resists based on onium salt carboxylates A photoresist composition that employs onium salt carboxylates as thermally stable dissolution inhibitors. The photoresist composition can be either an onium carboxylate salt with a phenolic photoresist, such as novolac, or an onium cation protected carboxylate-cont... | 11/29/2005 |
| 6951957 | 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 | 10/04/2005 |
| 6844468 | Process for preparing substituted benzoyl chlorides The present invention relates to a process for preparing substituted benzoyl chlorides of the formula (1) where R, x and y have the meaning given below, which comprises reacting a benzaldehyde of the formula (2) | 01/18/2005 |
| 6677479 | Substituted fluoroaromatics, process for preparing them and their use Compounds of the formula (I) and also process for preparing them ##STR1## where substituents X1, X2, Y and Z are defined as follows: X1 is H or F X2 is H or F Y is CI, Br, or I Z is CHO or COOH or CN n... | 01/13/2004 |
| 6605743 | Continuous process for the preparation of pivaloyl chloride and of aroyl chloride The invention relates to a continuous process for the preparation of pivaloyl chloride and of aroyl chloride, in particular of benzoyl chloride, which consists in reacting pivalic acid with a trichloromethylated aromatic compound in the presence of a cata... | 08/12/2003 |
| 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 |
| 6329529 | Nitrogen-based halogenating agents and process for preparing halogen-containing compounds Disclosed are a fluorinating agent represented by the general formula (1): ##STR1## wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group, and can be th... | 12/11/2001 |
| 6313337 | Method of making benzoyl halides and nitriles A method of making a benzoyl halide is disclosed. Into a reactor is placed a reaction mixture of a benzotrihalide and a benzaldehyde having the respective general formulas ##STR1## where each A is independently selected from halogen, CF3, R, or... | 11/06/2001 |
| 6201152 | Method of making 3,5-dichloro-p-toluoyl chloride Disclosed is a method of making 3,5-dichloro-p-toluoyl chloride. A mixture is prepared of methyl-3,5-dichloro-4-methylbenzoate, about 1 to about 1.4 equivalents of an ,,-trichloromethylbenzene, and about 0.01 to about 0.2 equivalents ... | 03/13/2001 |
| 5945565 | Process for the manufacture of acetonylbenzamides Novel routes for the preparation of acetonylbenzamides are provided by the reaction of an amine and acyl chloride. Novel routes to various intermediates used in the manufacture of acetonylbenzamides are also disclosed.... | 08/31/1999 |
| 5939581 | Processes for preparing hydrocinnamic acid Processes for preparing aromatic carboxylic acids. Cinnamaldehyde is hydrogenated to produce a mixture of hydrogenation products, namely, hydrocinnamaldehyde and hydrocinnamic alcohol. The mixture is then oxidized using a suitable oxidizing agent to subst... | 08/17/1999 |
| 5919341 | Difluorochloracetyl, dichloracetyl and trichloracetyl chloride preparation A process for preparing chlorodifluoroacetyl chloride from 1,1-difluoro-2,2-dichloroethylene and dichloroacetyl chloride from trichloroethylene or 1,1,2,2-tetrachloroethane, in which the starting compounds are continuously reacted in the gaseous phase wit... | 07/06/1999 |
| 5912371 | Method for preparing fatty acid chlorides A method for preparing fatty acid chlorides. The method comprises reacting a silylation product of a fatty acid comprising at 1east 2 aliphatically unsaturated bonds per molecule and a chlorinating agent.... | 06/15/1999 |
| 5905169 | Process for producing polyfluoroacyl compositions A process is disclosed for preparing polyhaloacyl fluorides such as trifluoroacetyl fluoride and difluoroacetyl fluoride by oxidizing 1-chloro-1,2,2,2-trifluoroethanes and 1,1-dichloro-2,2-difluoroethane, respectively with oxygen.... | 05/18/1999 |
| 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 |
| 5623082 | Preparation of acyl chlorides Acyl chlorides are prepared by reacting a carboxylic acid or its anhydride with carbonyl chloride in the presence of a carboxamide of the formula I ##STR1## where R1 is a radical of the formula ##STR2## R2 and R3... | 04/22/1997 |
| 5616787 | Process for the preparation of alkylated aromatic carboxylic acids and acyl halides The invention relates to a process for the preparation of polyalkylated aromatic carboxylic acids of formula I ##STR1## wherein R1, R2, R3, R4 and R5 are each independently of one another hydroge... | 04/01/1997 |
| 5532411 | Production of carboxylic acid halides and carboxylate salts A process for preparing carboxylic acid halides and carboxylate salts by reacting metal or "onium" halides with carboxylic anhydrides, which process is very suitable for working-up anhydrous, spent catalyst preparations. The resulting carboxylic acid hali... | 07/02/1996 |
| 5506358 | Process for producing alkoxyiminoacetamide compounds There is disclosed a process for producing an alkoxyiminoacetamide compound which is useful as agricultural fungicides. Also dislclosed are novel intermediate compounds for the above process and their production.... | 04/09/1996 |
| 5504249 | Preparation of o-chloromethylbenzoyl chlorides A process for preparing o-chloromethylbenzoyl chlorides of the formula I ##STR1## where m is 0 or an integer from 1 to 4 and X is halogen or C-organic radicals, entails reacting a corresponding lactone of the formula II ##STR2## with thionyl chloride... | 04/02/1996 |
| 5504245 | Processes for the preparation of cyclopropanecarboxylic acid and derivatives thereof Disclosed is a process for the preparation of cyclopropanecarboxylic acid by the non-catalytic, oxidation of cyclopropanecarboxaldehyde using molecular oxygen as the oxidant. Also disclosed are processes for the preparation of amides, esters and acid chlo... | 04/02/1996 |
| 5493054 | Process for the synthesis of acid halides and reactants useful for its implementation The subject of the present invention is a new catalytic system and a process for the synthesis of acid halides, especially from haloforms. This process for halogenating by means of a haloform is characterized by the use of a metal chloride, advantageously... | 02/20/1996 |
| 5473095 | Process for the preparation of chlorinated 4,5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehydes The present invention relates to a process for the preparation of compounds of the formula ##STR1## in which R1 is --CN, --COOH, --COOR', R' being an organic radical having 1 to 6 carbon atoms, --CONH2, --COCl or --CHO and R | 12/05/1995 |
| 5395966 | Process for the manufacture of acryloyl chloride Acryloyl chloride is obtained by reaction of acrylic acid with phenylchloroform in the presence of at least one Lewis acid as catalyst and of at least one polymerization inhibitor. According to the invention the catalyst is chosen from zinc oxide and zirc... | 03/07/1995 |
| 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 |
| 5344977 | Process for the preparation of 2,3-dibromopropionyl chloride An improved process for the preparation of 2,3-dibromopropionyl chloride, which comprises brominating acrylic acid, adding iron powder or an iron salt to the resultant melt, chlorinating the dibromopropionic acid obtained, and removing the volatile compon... | 09/06/1994 |
| 5296640 | Process for preparing perhaloacyl chlorides A process for preparing perhaloacyl chlorides such as trifluoroacetyl chloride by oxidizing lower perfluoroalkyl and monochloroperfluoroalkyl dichloromethane within the supercritical region and in the absence of water.... | 03/22/1994 |
| 5166427 | Preparation of acyl chlorides Acyl chlorides of the general formula ##STR1## where R is C8 -C30 -alkyl, C8 -C30 -alkenyl or C8 -C30 -alkynyl, are prepared from a carboxylic acid of the general formula II ##STR... | 11/24/1992 |
| 5126482 | Process for producing fluorine-containing carboxylic acids Novel fluorine-containing compounds and processes for producing the same are disclosed, the compounds being represented by the general formula (I): ##STR1## wherein R1 represents an alkyl group or an alkylvinyl group; R2 represe... | 06/30/1992 |
| 4968852 | Trifluoromethylbenzoyl bromide and conversion of same to bromobenzotrifluoride A novel compound, trifluoromethylbenzoyl bromide, is formed by bromination of trifluoromethylbenzoic acid with, e.g., phosphorus tribromide or by halogen exchange reaction of trifluoromethylbenzoyl chloride with bromine in the presence of a metal bromide.... | 11/06/1990 |
| 4966995 | Process for the preparation of chlorides of carboxylic acids The invention relates to a new process for the preparation of chlorides of carboxylic acids by reaction of tetrachloroethylene carbonate with a carboxylic acid of formula R(COOH)n at a temperature of between 80° and 160° C. The radical R may ... | 10/30/1990 |
| 4900479 | Preparation of carbonyl halides of more than 7 carbon atoms Carbonyl halides of the general formula I ##STR1## where R is an organic radical of more than 7 carbon atoms and X is chlorine or bromine, are prepared by reacting carboxylic acids of the general formula II ##STR2## where R has the abovemen... | 02/13/1990 |
| 4871484 | Process for the preparation of 2,2-bis-chloro-methylalkanecarboxylic acid chlorides A process for the preparation of a 2,2-bis-chloro-methyl-alkanecarboxylic acid of the formula ##STR1## in which R is hydrogen, alkyl, cycloalkyl or optionally substituted phenyl, which comprises reacting an oxetane-3-carboxylic acid of the formula ... | 10/03/1989 |
| 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 |
| 4743400 | Process for preparing retinoyl chlorides A process to prepare retinoyl chlorides, e.g., of the following formula (I): ##STR1## under very mild chlorinating conditions by the action of a reagent amount of dimethylchloroformamidinium chloride on a corresponding retinoic acid.... | 05/10/1988 |
| 4684733 | Process for the preparation of intermediates of derivatives of pyrrolidine and piperidine An improved process for the preparation of certain antiarrhythmic agents in which a carbon atom of a piperidine or pyrrolidine ring is bonded directly or through a methylene group to the nitrogen of a substituted benzamido group from bromo- or hydroxy-sub... | 08/04/1987 |
| 4469641 | Omega-fluorosulfato-perfluoro-(2-methyl-alkan-3-ones) Omega-fluorosulfato-perfluoro-(2-methyl-alkan-3-ones) of the formula ##STR1## which are intermediates in the preparation of perfluoro-isopropylketocarboxylic acid fluorides from omega-hydro-perfluoro-(2-methyl-alkan-3-ones).... | 09/04/1984 |
