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| Number | Title | Issue Date |
| 7642375 | Radiosynthesis of acid chlorides Radiolabelled acid chlorides may be synthesised by reacting a radiolabelled carboxylic acid with a solid-phase supported chlorinating agent. ... | 01/05/2010 |
| 7495130 | Method for producing substituted arylcarboxylic acid chlorides A process for preparing mono- or poly-C1-C20-alkyl- and/or -halogen-substituted arylcarbonyl chlorides (I), by, in a first stage, reacting a mono- or poly-C1-C20-alkyl- and/or -halogen-substituted aromatic (II) with CCl | 02/24/2009 |
| 7423174 | Method of separating acid The present invention provides a process for selectively separating HF and like acids present along with water-unstable organic acid fluorides. In particular, the invention provides a process for separating an acid from a system in which the acid and an organic acid... | 09/09/2008 |
| 7405331 | High-purity (fluoroalkyl)benzene derivative and process for producing the same The process for producing a (fluoroalkyl)benzene derivative according to the present invention comprises a step of reducing the total content of group 3 to group 12 transition metals in an alkylbenzene derivative to 500 ppm or less in terms of metal atoms; a step of... | 07/29/2008 |
| 7381420 | Labeling reactant This invention concerns novel labeling reactants suitable for labeling of a biospecific binding reactant using solid-phase synthesis. The novel reactants are derivatives of diethylenetriaminepentaacetic acid (DTPA), wherein a suitable group is linked to the DTPA mol... | 06/03/2008 |
| 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 |
| 7288676 | Arylphenyl-substituted cyclic ketoenols The present invention relates to novel arylphenyl-substituted cyclic ketoenols of the formula (I) in which X represents halogen, alkyl, alkoxy, alkenyloxy, alkylthio, alkylsulph... | 10/30/2007 |
| 7019166 | Method for the production of 2,4,5-trimethylphenyl acetic acid The present invention relates to a novel process for preparing 2,4,5-trimethylphenyl-acetic acid by reacting pseudocumene with dichloroacetyl chloride in a Friedel-Crafts reaction to give 2,2-dichloro-1-(2,4,5-trimethylphenyl)ethanone, converting the 2,2-dichloro-1-... | 03/28/2006 |
| 6998506 | Process for preparing acylfluorides A process for preparing acylfluorides by reaction of carbonyl fluoride COF2 with compounds having general formula: T=CR1R2 (I) wherein: T is O or CF2 ... | 02/14/2006 |
| 6949674 | Aromatic carboxylic acids, acid halides thereof and processes for preparing both A novel aromatic carboxylic acid useful as a material for macromolecular compounds and, in particular, for polycondensed macromolecular compounds exhibiting excellent heat resistance, an acid halide derivative thereof and a process for producing these compounds are ... | 09/27/2005 |
| 6924396 | α-haloenamine reagents The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use. ... | 08/02/2005 |
| 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 |
| 6916946 | Acid halide derivatives, their production, and production of indanonecarboxylic acid esters using the same Disclosed is a novel acid halide derivative represented by Formula (I): wherein X and Y may be the same or different and are each a halogen atom; and R is a lower alkyl group. By cyclizing the acid halide derivative of... | 07/12/2005 |
| 6911558 | Method for purifying chloromethyl chloroformate Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 5... | 06/28/2005 |
| 6852884 | Process for preparing acylfluorides A process for preparing acylfluorides by reaction of carbonyl fluoride COF2 with compounds having general formula: T=CR1R2 (I) wherein: T is O or CF2 ... | 02/08/2005 |
| 6822114 | Process for production of fluoroalkoxy-substituted benzamides and their intermediates Roflumilast and new key intermediates therefor are prepared by processes involving use of carbonylation technology. Good overall yields can be achieved using available starting materials. The starting material for the process can be catechol, an o-R1-phen... | 11/23/2004 |
| 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 |
| 6677487 | -haloenamine reagents The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use.... | 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 |
| 6469196 | Dialkyl phenyl halide-substituted keto-enols for use as herbicides and pesticides The present invention relates to new compounds of the formula (I) ##STR1## in which X represents alkyl, Y represents halogen or alkyl and Z represents halogen or alkyl, with the proviso that one of the radicals Y and Z always represents halogen and the other a... | 10/22/2002 |
| 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 |
| 6271417 | Process for producing 3-bromobenzoyl halides Meta-bromination with suppression of para-bromination is achieved by forming a reaction mixture comprised of (i) bromine chloride, (ii) a bromination catalyst, and (iii) a benzoyl halide, and maintaining the temperature of the resultant reaction mixture a... | 08/07/2001 |
| 6252104 | Naphthol derivatives and process for producing the same A naphthol derivative represented by the general formula (I), [wherein Y and Y' indicate --(CONH)n --X or --COR; X is a phenyl group, a naphthyl group, an anthraquinonyl group, a benzimidazolonyl group or a carbazolyl group; R is a hydroxyl gro... | 06/26/2001 |
| 6206819 | Halogenation catalyst N,N-disubstituted formamides, wherein the substituents are selected to provide formamides which have low volatility, are useful as halogenation catalysts. Such catalysts are generally less hazardous to use than typical formamide halogenation catalysts bec... | 03/27/2001 |
| 6147231 | Process for producing 2(2-hydroxymethylphenyl)acetamide derivative and intermediate for the production thereof A process for producing a compound of the formula (I): ##STR1## wherein R1 and R2 are the same or different and are hydrogen or alkyl, and R is hydrogen or alkyl, which comprises removing the protective group (P) of hydroxyl of ... | 11/14/2000 |
| 6124498 | Hydroxynaphthoic acids and derivatives In one embodiment, the present invention provides a compound comprising: ##STR1## wherein A=H or OH X=OH, a halogen, OR, NHR, NR'R" where R, R', and R"=H, C1-8 alkyl, C2-8 alkenyl, or C2-8 alkynyl, cycloalkyl, cycloalkenyl... | 09/26/2000 |
| 6114467 | Semifluorinated acid halides and fluorinated polymers produced therefrom Compounds having the formula F(CF2)q --(CH2)p-1 --COX' wherein q ranges from 6-15, p ranges from 3-15 and X' is halogen are useful as reactants for hydroxylated block copolymers or polyamines to produce fluorina... | 09/05/2000 |
| 6054621 | Alkoxyacrylic acid thiol esters used as fungicides The invention relates to novel alkoxyacrylic thiol esters, to a plurality of processes for their preparation and to their use as fungicides, and to novel intermediates and to a plurality of processes for their preparation.... | 04/25/2000 |
| 6054107 | Phosgene manufacturing process A process for producing phosgene is disclosed which involves contacting a mixture comprising CO and Cl2 (e.g, at about 300° C. or less) with a silicon carbide catalyst having a surface area of at least 10 m2.g.sup.-1.... | 04/25/2000 |
| 6030843 | Site reactivity probes for the environment The 136 labeled compounds chloroacetic acid (CA), chloroacetamide (CAM), and chloroactonitrile (CCN), have been synthesized, and provide the site reactivity probes (SRP) of the present disclosure. The reactivity of diverse environmental sites and samples,... | 02/29/2000 |
| 6015911 | Process for preparing 1-alkyl-4-(2-chloro-3-alkoxy-4-alkylsulfonylbenzoyl)-5-hydroxypyrazole and related compounds Herbicidal 1-alkyl-4-(2-chloro-3-alkoxy-4-alkylsulfonylbenzoyl)-5-hydroxypyrazole compounds, as well as 1-halo-2-chloro-3-alkoxy-4-alkylsulfonylbenzene compounds and 2-chloro-3-alkoxy-4-alkylsulfonylbenzoic acid compounds, were prepared in good yield... | 01/18/2000 |
| 5990351 | Process for separating pivalic acid from spent reaction mixtures A process for recovering 2,2-dimethylpropanoic acid in highly pure form from a mixture of 2,2-dimethylpropanoic acid and impurities which may be obtained in the production of a beta lactam antibiotic, by degrading impurities and separating off the volatil... | 11/23/1999 |
| 5981789 | Preparation of nuclear chlorinated aromatic compounds Disclosed is a method of preparing an aromatic compound having the general formula ##STR1## where R is CF3, OCF3, OC2 F5, CN, NCO, or COCl, m is 0, 1, or 2, n is 0, 1, or 2, q is 1 or 2, and q+m+n is an int... | 11/09/1999 |
| 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 |
| 5900502 | Fluorination process According to the present invention there is provided a process for the selective introduction of one or more fluorine atoms into a disubstituted aromatic compound in an acid medium with fluorine gas characterized in that the acid medium has a dielectric c... | 05/04/1999 |
| 5856573 | Process for producing 2-(2-hydroxymethylphenyl)acetamide derivative and intermediate for the production thereof A process for producing a compound of the formula (I): ##STR1## wherein R1 and R2 are the same or different and are hydrogen or alkyl, and R is hydrogen or alkyl, which comprises removing the protective group (P) of hydroxyl of ... | 01/05/1999 |
| 5811578 | Fluoroalkenyl compounds and their use as pest control agents Fluorinated alkene compounds useful for and methods of controlling nematodes, insects, and acards that prey on agricultural crops. Polar compounds are particularly useful for systemic control of pests.... | 09/22/1998 |
| 5750778 | Fungicide intermediates Certain fluoroalkanoic acids and derivatives, including 2-fluoroisobutyric acid and 2-fluoroisobutyryl chloride, useful as intermediates for fungicides, and methods of preparing them.... | 05/12/1998 |
| 5723613 | Process for the free-radical chlorination or bromination of methyl aromatic compounds Methyl aromatic compounds of the formula (I) ##STR1## in which R1, R2 and R3 have the meaning given in the description, can be reacted in an advantageous manner using free-radicals to give the associated trichlorometh... | 03/03/1998 |
