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WO/1999/014173A1 |
The invention relates to a method for producing a first perhalogenated cyclopentene represented by the general formula: C¿5?Cl¿B?F¿8-B? where B is an integer of from 0 to 7. The method includes a step of (a) fluorinating a second perh...
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WO/1998/055429A1 |
A method of fluorinating an organic compound comprising reacting an organic compound with a fluorinating agent characterised in that a perfluorocarbon compound is present in the reaction medium. The perfluorocarbon compound may replace a...
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WO/1998/051650A1 |
Compositions comprising linear or cyclic fluorinated, saturated hydrocarbons of the following general formulae (I): Rf�1?-R�1?-Rf�2? and (II): Rf�1?-R�2?-Rf�2?. Each composition comprises more than 10 molar % and less than 95...
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WO/1998/051649A1 |
Compositions comprising linear or cyclic fluorinated, saturated hydrocarbons of the following general formula (I) Rf�1?-R�1?-Rf�2? and (II) Rf�1?-R�2?-Rf�2, and the use thereof. Each composition comprises more than 10 molar %...
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WO/1998/051651A1 |
Incombustible fluorinated hydrocarbons excellent in detergency and stabilities to alkalis, water and heat; and polymer-containing fluids obtained by dissolving or dispersing a film-forming polymer, preferably a fluoropolymer in a solvent...
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WO/1998/041490A1 |
Methods of making AF4 using novel reducing agents that result in reduced cost. Low dilution technology may be used to provide AF4 in substantially improved yields. The relative amount of transition metal catalyst can be decreased. The am...
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WO/1998/027035A1 |
Fluorinated phenantrene derivatives of the formula (I), in which G means -CHF-CH�2?-or -CF=CH-; E?1�, E?2�, E?3�, E?4�, E?5�, E?6� are identical or different and mean -CH-, -CF- or -N-; and R?1�(-A?1�-M?1�)�a?(-A?2ï...
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WO/1998/000376A1 |
The present invention provides several methods of synthesis and separation in which organic/fluorous phase separation techniques are used to effect separations. The present invention also provides novel compositions of matter comprising ...
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WO/1997/043233A1 |
A process for preparing a fluorinated olefin having a fluorine atom bonded to either of the carbon atoms of the carbon-carbon double bond by reacting an alkali metal fluoride with a halogenated olefin which has in the molecule at least o...
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WO/1997/032835A1 |
A process for producing benzyl fluoride derivatives represented by general formula (II), wherein R1 represents hydrogen, lower alkyl, etc.; R2 represents hydrogen, piperazinyl, piperidyl, pyrrolidinyl, morpholinyl, amino or heteroaryl; a...
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WO/1997/015541A1 |
Cyclic 'alpha'-perfluoro-di-p-xylylenes having the structure (I), wherein G is an aromatic nuclear substituent group selected from the group consisting of chlorine and fluorine (m = 4), and perfluoroalkyl groups having the formula CnF2n+...
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WO/1997/014666A1 |
A process for the preparation of octafluoro-[2,2]paracyclophane includes contacting a reactant selected from the group consisting of 1,4-bis(bromodifluoromethyl)benzene (dibromide), 1,4-bis(chlorodifluoromethyl)benzene (dichloride), and ...
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WO/1997/007234A1 |
A process comprising the step of treating trans-(+/-)-2-bromoindan-1-o1 in an organic solvent with a lipase originating in a yeast or a recombinant of the same; the step of selectively esterifying either the (+)-alcohol or the (-)-alcoho...
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WO/1997/002247A1 |
Disclosed are fluorinated phenanthrene derivatives of formula (I), in which the symbols and indices have the following meanings: E1, E2, E3, E4, E5 and E6 are identical or different and stand for -N-, -CF- or -CH-; G is -CF2CF2- or -CF=C...
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WO/1996/040834A1 |
Compositions comprising a hydrofluoroether or fluoroether of the formula CaFbH2a+2-bOc wherein a = 3 to 6, b = 1 to 14 and c = 1 or 2; an acyclic hydrofluorocarbon or fluorocarbon of the formula CdFeH2d+2-e wherein d = 4 to 6 and e = 1 t...
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WO/1996/028403A1 |
Tetracyclic compounds having structure (1) are described, wherein R1-R10 are as defined. The tetracyclic compounds are capable of potent effects on steroid sensitive tissues and have demonstrated increased uterine weight, antiovolatory e...
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WO/1996/010605A2 |
Disclosed herein are polymers made by free radically polymerizing the novel compound vinyl(perfluorocyclopropane), and optionally other monomers to form copolymers. The repeat unit formed by vinyl(perfluorocyclopropane) contains an olefi...
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WO/1996/006073A1 |
The invention relates to novel compounds of formula R1-A1-Z1-A2-Z2-A3-R2 in which Z1 and Z2 are laterally substituted cyclohexane and cyclohexene rings such as (2), (3), (4), (5), (6), (7), (8), (9). The compounds are useful as component...
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WO/1996/003357A1 |
A process for the preparation of a selectively fluorinated organic compound, which process includes reaction of a precursor of said organic compound, the precursor containing at least one Group VI element selected from sulfur, selenium a...
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WO/1996/000707A1 |
A process for producing a fluorinated vic-dichloroalkene derivative and a fluorinated alkane derivative represented by the respective general formulae from an inespensive starting material: R1-CC1=CC1-R2, R1-CR3R4-CR5R6-R2, (wherein R1 a...
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WO/1995/028373A1 |
An azeotropic composition comprising cis-1,1,2,2,3,4-hexafluorocyclobutane and at least one compound selected from the group consisting of methanol, ethanol, isopropaneol, n-propanol, tert-butanol, cyclopentane, n-octane, isooctane, n-he...
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WO/1995/007875A1 |
Cyclofluoroalkylated fullerene compounds and thermolysis process for their preparation.
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WO/1995/006022A1 |
A process for producing hexafluorocyclobutene by dechlorinating 1,2-dichlorohexafluorocyclobutane with hydrogen in the presence of a metal oxide and/or silicon oxide catalyst. A process for producing (Z)-1,2,3,3,4,4-hexafluorocyclobutane...
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WO/1995/005448A1 |
A cleaning solvent composition comprising at least one member selected from the group consisting of 1H,2H/-hexafluorocyclobutane, 1,2,2,3,3-pentafluorocyclobutane, 1,2,2,3,3,4,4,5,5-nonafluorocyclopentane, 1H/2H-octafluorocyclopentane, 1...
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WO/1995/004790A1 |
2-fluorocyclohexene derivatives of the formula (I) in which R, A1, Z1, X, L1, L2, m and n have the meanings given in claim (1) can be used as components of liquid crystalline media for electro-optical display components, especially for m...
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WO/1994/025424A1 |
Described are fullerene derivatives of the formula (I) in which the symbols are as defined as follows: F is a fullerene unit of the formula C(20+2m) in which m = 20, 25, 28 or 29; E1 and E2, when they are the same or different, are COOH,...
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WO/1994/017018A1 |
A fullerene derivate has formula (I), in which the symbols and indexes have the following meaning: F is a fullerene residue having the formula (C20+2m), in which m equals 1 to 50; R1 to R8 are the same or different and represent H, CO2R9...
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WO/1994/014738A1 |
Described are monomers of the formula (I) (e.g. 3,3,4,4,5,5,6,6-octafluoromethylenecyclopentane) plus copolymers prepared from such monomers and from one or more monomers copolymerizable with them. Such compounds are suitable for use in ...
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WO/1994/009625A2 |
Storage stable fluorocarbon emulsions having a continuous aqueous phase and a discontinuous fluorocarbon phase, in which the fluorocarbon phase comprises a major amount of a first fluorocarbon or fluorocarbon mixture, and a minor amount ...
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WO/1994/005613A1 |
A difluoride derivative represented by the general formula: R1-(A1-Y1)m-A2-CF=CF-C=C-A3-(Y2-A4)n-R2, wherein A1 through A4 represent each trans-1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene; m and n represent each 0 or 1; and R...
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WO/1994/002563A1 |
Refrigerant compositions include mixtures of 1,1,2,2-tetrafluoroethane and a second component wherein the second component is 1,1,12,2,3,3-heptafluoropropane, 1,1,1,2,2-pentafluoropropane, tris(trifluoromethyl)amine, cyclopropane, perflu...
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WO/1993/016022A1 |
An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R1 wher...
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WO/1993/009074A2 |
Compounds having acidic protons and a molecular structure which can delocalize the electron density of the conjugate base (target compounds) are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the pres...
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WO/1993/009078A1 |
Active methine compounds are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the presence of a phase transfer catalyst which is a tetraalkylonium hydroxide. Chlorinated products, preferably tertiary al...
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WO/1993/008799A1 |
Novel indane and indene derivatives are described which are endothelin receptor antagonists.
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WO/1993/007128A1 |
This invention relates to substituted cyclic carbonyls and derivatives thereof useful as retroviral protease inhibitors, to pharmaceutical compositions comprising such compounds, and to methods of using these compounds for treating viral...
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WO/1993/005002A2 |
A catalytic process is disclosed for producing fluorine-substituted hydrocarbon products of the formulae RCH2CF2R and RFC=CHR at an elevated temperature, from compounds of the formula RCHFCHFR, where each R is independently selected from...
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WO/1993/002029A1 |
Catalytic hydrogenolysis of fluorohalocarbons (e.g., CFCs) and fluorohalohydrocarbons (e.g., HCFCs), using catalysts of Re, Co, Ni, Ru, Rh, Pd, Os, Ir, and/or Pt on a carbon having low ash content. Preferred catalysts use carbon which is...
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WO/1992/021734A1 |
The invention concerns vinyl compounds of formula (I), in which R is H, an alkyl or alkenyl group with 1 to 15 C-atoms which may be unsubstituted, substituted singly by CN or CF�3? or substituted at least singly by halogen, one or more...
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WO/1992/019748A1 |
In addition to virions, herpesvirus-infected cells produce non-infectious particles, termed L-particles, which consist of tegument surrounded by envelope but lack the nucleocapsid. L-particles of a herpesvirus can be prepared substantial...
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WO/1992/017558A1 |
The azeotropic and azeotrope-like compositions of 1,1,1,2-tetrafluoroethane and one of 1,1-difluoroethane, 1-chloro-1,1-difluoroethane, dimethyl ether, perfluorocyclobutane, n-butane, isobutane and 1,1,1,2,3,3,3-heptafluoropropane, and t...
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WO/1992/006942A1 |
This invention concerns a process for the production of polyfluoroolefins by the catalytic addition of polyfluoroallylic fluorides to fluoroéthylenes. 1:1 and 1:2 adducts such as F-pentene-2 and F-heptene-3 can be formed selectively and...
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WO/1992/001762A1 |
Near-Azeotropic blends of: pentafluoroethane and 1,1,1-trifluoroethane with one or more of chlorodifluoromethane, 1,2,2,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,2,2,2-tetrafluoroethan...
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WO/1991/016390A1 |
Azeotrope-like blends are disclosed comprising effective amounts of 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a) and a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124),...
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WO/1991/013846A1 |
The compound 1,1,2,2,3,3-hexafluorocyclopentane and mixtures thereof with alcohols, ethers, esters, ketones, nitromethane, and halogenated hydrocarbons are disclosed; as is a process for cleaning a solid surface which comprises treating ...
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WO/1991/013946A1 |
Azeotropic mixtures of perfluoro-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane, are useful in solvent cleaning applications, and as refrigerants, aerosol propellants and polymer blowing agents.
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WO/1991/013967A1 |
Azeotropic mixtures of perfluoro-1,2-dimethylcyclobutane, methanol and either 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane, are useful in solvent cleaning applications, and as refrigerants, aerosol propellants and polymer blowi...
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WO/1991/005750A2 |
This invention concerns a process for preparing fluoroalkyl substituted olefins, fluorinated ketones and fluorinated aromatic compounds by the catalyzed reaction of fluoroalkylsilanes with selected fluorinated olefins, acyl fluorides and...
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WO/1991/004955A1 |
A halocarbon product made from the reaction of excess hydrogen fluoride with a halocarbon, containing excess hydrogen fluoride as an azeotrope is purified by fluorination in the presence of additional halocarbon or halo-olefin.
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WO/1991/003442A2 |
In a process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds which possibly contain other chain members from the group of heteroatoms: nitrogen, oxygen, boron, phosphorus and sulphur and/or can be...
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