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| Number | Title | Issue Date |
| 7256316 | Fluorine-containing vinyl ethers, their polymers, and resist compositions using such polymers A fluorine-containing vinyl ether represented by formula 1, wherein R represents an organic group containing at least one fluorine atom and a cyclic structure is provided. A fluorine-containing copolymer containi... | 08/14/2007 |
| 7115784 | Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or a... | 10/03/2006 |
| 7105708 | Method for producing compounds having a CFO bridge The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the resultant bis(alkylthio)c... | 09/12/2006 |
| 7045662 | α, α-difluoroamines and difluoromethylene-α, α-diazo compounds The present invention relates to a process for preparing α,α-difluoroamines, difluoromethylene-α,α-diazo compounds and fluorination reagents containing α,α-difluoroamines and/or difluoromethylene-α,α-diazo compounds. ... | 05/16/2006 |
| 7045529 | Imidazopyrimidinyl and imidazopyri dinyl derivatives Provided herein are compounds of the formula (I): as well as stereoisomers and pharmaceutically acceptable salts thereof. Such compounds are, because of their ability to antagonize CRF, useful in the treatment of a var... | 05/16/2006 |
| 6770788 | Process and intermediate compounds for preparation of pesticidal fluoroolefin compounds A two-step process for the preparation of fluoroolefin compounds of formula I wherein R is hydrogen or alkyl, and R1 is alkyl or cyclopropyl, or R and R1 are taken together with the carbon at... | 08/03/2004 |
| 6538142 | Process for the preparation of metaxalone A process for the preparation of 5-(3,5-dimethylphenoxymethyl)-2-oxazolidinone, which includes: a) reacting 3,5-dimethylphonel with epichlorohydrin to obtain a mixture of 1-(3,5-dimethylphenoxy)2,3-epoxy propane (1) and 1-(3,5-dimethylphenoxy)-3-chloro-2-... | 03/25/2003 |
| 6462240 | Process for the selective deprotonation and functionalization of 3-substituted benzotrifluorides 3-Substituted benzotrifluorides are selectively deprotonated and functionalized in the 2-position. The selectivity is achieved by equilibrating the mixture of lithiobenzotrifluorides initially formed in the presence of a primary or secondary amine catalys... | 10/08/2002 |
| 6441205 | Synthetic precursors to 4-(P-methoxyphenyl)-2-amino-butane The invention provides a novel compound 4-(p-methoxy-phenyl)-2-aminobutane exhibiting growth inhibition and antifeedant activity and represented by the structural formula. ##STR1## C11 H17 ON=4-(p-methoxy phenyl)-2-amino butane and a... | 08/27/2002 |
| 6242654 | Preparation process of fluorine substituted aromatic compound A preparation process of a fluorine substituted aromatic compound comprising reacting an alkali metal or alkali earth metal salt of an aromatic compound having a hydroxy group with an organic fluorinating agent is disclosed. As a representative fluorinati... | 06/05/2001 |
| 6239317 | Process for the production of halogeno-o-hydroxydiphenyl compounds There is described a four step process for the production of halogeno-o-hydroxydiphenyl compounds having the formula ##STR1## in which X is --O--or --CH2 --; m is 1 to 3; and n is 1 or 2; wherein in the first step, a diphenyl compound is chlorinated... | 05/29/2001 |
| 6118028 | Method of making trifluoromethoxybenzenes Disclosed is a process for making an ,,-trifluoromethoxybenzene by reacting an ,,-trichloromethoxybenzene or an ,,-tribromomethoxybenzene with gaseous hydrogen fluoride in the presence of... | 09/12/2000 |
| 5998674 | Bromine compound production method Method of producing a bromine compound having an aliphatic unsaturated bond which includes reacting a compound having an aliphatic unsaturated bond represented by the following general formula (1) with bromine: R1 --O--Ar1 --Y--Ar2 | 12/07/1999 |
| 5952386 | Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R1 is C1 -C10 alkyl or the like; L is C(.dbd.O)NH or the like; R2, R3 and R4 are indepen... | 09/14/1999 |
| 5911912 | Halovinyl ethers Halovinyl ethers of the general formula I ##STR1## in which R, A1, A2, A3, Z1, Z2, X1, X2, l, m and n are as defined herein are suitable as components of liquid-crystalline ... | 06/15/1999 |
| 5910617 | Process for the preparation of aliphatic or cycloaliphatic chlorides The process according to the invention consists in preparing chlorides of aliphatic or cycloaliphatic hydrocarbons by reacting the corresponding mono- or polyalcohol with phosgene or thionyl chloride in the presence of at least one catalyst chosen from he... | 06/08/1999 |
| 5844056 | Star polymers having multiple polyisobutylene arms emanating from a calixarene core, initiators therefor, and method for the synthesis thereof The synthesis and characterization of novel linear polymers and multi-arm star polymers comprising polyisobutylene arms connected to a well-defined calixarene core are described. The polymers are directly telechelic. They synthesis has been achieved using... | 12/01/1998 |
| 5840998 | Side chain chlorination of aromatic and heterocyclic ethers Disclosed is a method of chlorinating a side chain of a aromatic or heterocyclic ether. The aromatic or heterocyclic ether is mixed with a fluorine-containing aliphatic solvent. The aromatic or heterocyclic ether is contacted with chlorine radical at an e... | 11/24/1998 |
| 5773668 | Method of making trichloromethoxybenzene Disclosed is a method of making trichloromethoxybenzene. A mixture is prepared of anisole and a source of chlorine free radicals, such as chlorine or sulfuryl chloride. The reaction is performed in a solvent, which can be either benzotrifluoride, orthochl... | 06/30/1998 |
| 5723682 | Difluorovinyl ethers The invention relates to difluorovinyl ethers of the general formula I ##STR1## in which R, A, X and m are as defined in claim 1, and to the use of these compounds as components of liquid-crystalline media, and to liquid-crystal and electro-optical d... | 03/03/1998 |
| 5693807 | Substituted hydroquinone derivatives The invention relates to substituted hydroquinone derivatives of the general formula I ##STR1## wherein R4 is lower alkyl and either R1 is hydroxy, halogen, a group of the formula --P(=O)(R5)R6 (Ia), a grou... | 12/02/1997 |
| 5658951 | Diphenylcyclopropyl analogs Diphenylcyclopropyl analogs in which one or more of the phenyl rings includes alkoxy substituents including a dialkylaminoalkoxy group, an unsubstituted piperazine alkoxy group, a substituted piperazine alkoxy group, an unsubstituted piperidine alkoxy gro... | 08/19/1997 |
| 5658927 | Diphenylcyclopropyl analogs Diphenylcyclopropyl analogs in which one or more of the phenyl rings includes alkoxy substituents including a dialkylaminoalkoxy group, an unsubstituted piperazine alkoxy group, a substituted piperazine alkoxy group, an unsubstituted piperidine alkoxy gro... | 08/19/1997 |
| 5658914 | Diphenylcyclopropyl analogs Diphenylcyclopropyl analogs in which one or more of the phenyl rings includes alkoxy substituents including a dialkylaminoalkoxy group, an unsubstituted piperazine alkoxy group, a substituted piperazine alkoxy group, an unsubstituted piperidine alkoxy gro... | 08/19/1997 |
| 5547593 | Lubricant oil composition comprising a fluorine-containing aromatic compound and an alkyl- or alkyl derivative-substituted aromatic compound, and a refrigerant composition containing the same Disclosed is a lubricant oil composition comprising: (A) a fluorine-containing aromatic compound, and (B) an alkyl- or alkyl derivative-substituted aromatic compound having a kinetic viscosity of from 0.1 to 500 cSt as measured at 40 .degree. C., wherein:... | 08/20/1996 |
| 5491266 | Asymmetric syntheses This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.... | 02/13/1996 |
| 5484932 | Halogenation processes in advantageous solvents, and novel bistrifluoromethyl-polyfluoroalkoxybenzenes Compounds such as ##STR1## wherein R is F, CF3, CF2 H, CHF CF3 or CF2 CF3, as well as related compounds containing chlorine, are used as solvents in halogenation processes.... | 01/16/1996 |
| 5463088 | Process for preparing perfluoroalkoxy (alkylthio) benzenes A process for preparing perfluoroalkoxy(alkylthio)benzenes from perfluorochloroalkoxy(alkylthio)-benzenes by reaction with hydrogen fluoride in the gas phase and in the presence of a catalyst.... | 10/31/1995 |
| 5463138 | Process for preparing difluoromethoxyarenes and difluoromethylthioarenes Difluoromethoxyarenes and difluoromethylthioarenes of the general formula (I), Ar--Q--CHF2 (I) in which Ar represents optionally substituted aryl, and Q represents oxygen or sulphur, (which can be used as interme... | 10/31/1995 |
| 5440051 | Process for the -chlorination of aryl ethers Aryl ethers are chlorinated in the -position by a process in which they are metered into a reaction vessel at the same time as chlorine, the reaction being carried out at temperatures in the range from 60° to 150° C.... | 08/08/1995 |
| 5403512 | Vinyl compounds, and a liquid-crystalline medium Vinyl compounds of the formula I ##STR1## in which the variables are as described in the claims. The compounds are useful as components in liquid-crystalline media.... | 04/04/1995 |
| 5356562 | Fluoro tolans and liquid crystalline media Fluoro tolans of the formula I ##STR1## wherein R1 denotes alkyl with up to 12 carbon atoms wherein one or two non-adjacent CH2 groups may also be replaced by --O--, --O--CO--, --CO--O-- and/or --CH.dbd.CH--, A is trans-1,4-cycl... | 10/18/1994 |
| 5350878 | Fluorinated compounds containing hetero atoms and polymers thereof This invention provides 1) novel reactive fluorinated compounds derived from a specified class of telomers or cotelomers of fluoroolefins; and 2) stable products and stable polymers thereof obtained by reaction or polycondensation of the novel reactive fl... | 09/27/1994 |
| 5342985 | Organic derivatives of rhenium oxides and their preparation and use for the metathesis of olefins The invention relates to a process for the metathesis of olefins which comprises reacting an olefin of the formula YCZ.dbd.CZ--(CX2)n R2 (II) wherein n is an integer from 1 to 28, X represents H or F, Y represents H or alkyl ha... | 08/30/1994 |
| 5324449 | Substituted phenyl trifluoromethyl ethers Substituted phenyl trifluoromethyl ethers of the formula I R1 --(A1 --Z1)n --A2 --Z2 --A3 --OCF3 I in which R1, A1 | 06/28/1994 |
| 5313001 | Process for the preparation of -flurostyrene Process for the preparation of -fluorostyrene from fluoroolefins: ##STR1## Z=hydrogen, fluorine, chlorine X=iodine, bromine, chlorine. A halogenated aromatic (I) is reacted with a fluorine-substituted ethylene (II) in the presence of a palladium ca... | 05/17/1994 |
| 5279764 | Dihalogenobenzene derivatives The invention relates to dihalogenobenzene derivatives of the formula I R1 --A1 --Z1 --A2 --(Z2 --A3)n --R2 wherein R1, R2, A1, A2, A... | 01/18/1994 |
| 5126461 | Process for opening cyclopropane rings Process for ring opening compounds of the formula ##STR1## in which R1 is heteroaryl or aryl, R2 is a leaving group, R3, R4, R5 and R6 are independently selected from hydrogen, alkyl, ... | 06/30/1992 |
| 5105021 | Preparation of a difluorohalomethoxybenzene A higher yield of the difluorohalomethoxybenzene produced by the reaction of a metal phenolate with dibromodifluoromethane or bromochlorodifluoromethane can be obtained by conducting the addition of a metal alcoholate or a metal hydride as a reaction init... | 04/14/1992 |
| 5093526 | Environmentally safe method of preparing a certain dialkylamine N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine is prepared by reacting 2-phenoxy ethanol with thionyl chloride in the presence of a catalytic amount of tetra-alkyl ammonium halide optionally in the presence of a solvent to form 2-phenoxy ethyl chlori... | 03/03/1992 |
