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| Number | Title | Issue Date |
| 7838692 | Alkyl acetal compound, process for producing the same, and lubricating oil composition A compound which satisfies requirements for the annealing property and the lubricating property simultaneously and a process for producing the compound are provided. The compound is an alkylacetal compound represented by the following general formula (1) or (2). In ... | 11/23/2010 |
| 7629476 | Method for producing 2,5-dimethylphenyl acetic acid The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (... | 12/08/2009 |
| 7354893 | Acetals, use thereof as fragrances and methods for production thereof An acetal of formula I: is described in which the radicals R1 to R6 independently of one another are eac hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl or tert-... | 04/08/2008 |
| 7351452 | Liquid crystalline compounds containing a biphenyl core A compound of formula (I) or a dimer thereof; where R1 and R2 are independently selected from optionally substituted alkyl, optionally substitituted alkenyl, optionally substit... | 04/01/2008 |
| 7329637 | Methylene dioxy octahydroindene derivatives The present invention is directed to a novel dioxin compound and the use of the novel compound in creating fragrances, and scents in items such as perfumes, colognes and personal care products. ... | 02/12/2008 |
| 7321052 | Process for production of a composition useful as a fuel A process for the preparation of a fuel oil (diesel fuel or heating oil) composition which is a mixture of an alkanol tranesterified fatty acid ester triglyceride and an acetal of glycerol is described. The process preferably provides a prestep of the formation of a... | 01/22/2008 |
| 7291367 | Liquid-crystalline compounds The invention relates to liquid-crystalline compounds of the formula (I) in which R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, a, b and c have the meanings indicated in Claim | 11/06/2007 |
| 7271296 | Method for the production of phytofluene The invention relates to a process for preparing phytofluene of the formula I, where a) a phosphonium salt of the formula II is condensed with an aldehyde of the formula III | 09/18/2007 |
| 7189863 | Process for producing trifluoromethyl-substituted 2-alkoxyacetophenone derivatives A process for producing a brominated acetal (represented by the formula 3) includes (a) brominating a trifluoromethyl-substituted acetophenone by Br2 in the presence of an alkylene diol. It is optional to produce a trifluoromethyl-substituted 2-alkoxyacet... | 03/13/2007 |
| 7161043 | Process for the carbonylation of ethylenically unsaturated compounds and bidentate diphosphine composition used in this process Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt group metal cations,... | 01/09/2007 |
| 7097887 | Liquid crystal compounds The use of a compound of formula (I) wherein R1 is an alkyl or alkenyl group, either of which may be optionally interposed with one or more oxygen or sulphur atoms, R2 is an alkyl or alkenyl... | 08/29/2006 |
| 7081279 | Alkenyl compound having a negative Δε value, liquid crystal composition, and liquid crystal display device Liquid crystalline compounds having a large negative Δε low viscosity, a large K33/K11 value, a small Δε/Δ⊥ and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid cryst... | 07/25/2006 |
| 7074464 | Perfluoropropenyl-containing compound, liquid crystal composition and liquid crystal display element A compound represented by the formula (1). wherein Ra is alkyl having 1 to 10 carbon(s) and, in that alkyl, any of —CH2— may be replaced with —O—, —S—, —CO—, —CH═CH— or —C≡C... | 07/11/2006 |
| 7074462 | Ester compounds and their use in liquid crystalline media The invention relates to compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ... | 07/11/2006 |
| 7029730 | CFO-bridged, axially substituted cyclohexane derivatives The invention relates to CF2O-bridged cyclohexane derivatives, in particular compounds of formula (I), R1-(-A1-Z1-)k1-Q-CF2O-A2-(-Z3-A3-)K3-R2, wherein Q represents group (a); W1, W2 represent —CH2— and/or —O— inde... | 04/18/2006 |
| 7014890 | Fluorinated naphthalenes, liquid-crystal mixtures comprising them, and liquid-crystal displays Compounds of the formula (I) in which the parameters are as defined herein, are suitable for use in liquid-crystal media and liquid-crystal displays which contain these media. ... | 03/21/2006 |
| 7001647 | Perfluoroallyloxy compound and liquid crystal composition containing the same A novel perfluoroallyloxy compound represented by general formula (I) and a liquid crystal composition containing the compound are disclosed. The perfluoroallyloxy compound is useful as a liquid crystal material ... | 02/21/2006 |
| 6962767 | Acetal compound, polymer, resist composition and patterning process Acetal compounds in which a 5- or 6-membered ring acetal structure is connected to a norbornene structure through a linker represented by —(CH2)m— in which one hydrogen atom may be substituted with a hydroxyl or acetoxy group, and m is from... | 11/08/2005 |
| 6933385 | Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for the production and the use The invention relates to new protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for the production and the use of the new compounds for the production of epothilones or epothilone derivatives. ... | 08/23/2005 |
| 6924376 | Compounds, compositions and methods Compounds useful for treating cellular proliferative diseases and disorders by modulating the activity of KSP are disclosed. ... | 08/02/2005 |
| 6908645 | Liquid-crystalline medium The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterized in that it comprises one or more compounds of the general formula I | 06/21/2005 |
| 6872502 | Chemically amplified negative photoresist, and photoresist composition A polymer for a chemically amplified negative photoresist and a photoresist composition are provided. A representative polymer of the invention is a compound of formula 5: wherein: R1 | 03/29/2005 |
| 6844032 | Liquid crystal compounds having bis(trifluoromethyl) phenyl rings, liquid crystal compositions and liquid crystal display devices The compound (1) having 2,3-bis(trifluoromethyl)-1,4-phenylene is stable chemically and has excellent miscibility with other liquid crystal compounds, large and negative dielectric anisotropy and proper optical anisotropy. A liquid crystal composition comprising the... | 01/18/2005 |
| 6808762 | Oxabicyclooctanes The present invention relates to oxabicyclooctanes of the general formula I. in which R1, R2, A1, A2, A3, A4, L1... | 10/26/2004 |
| 6759103 | Fluorinated cyclopenta[b]naphthalenes and their use in liquid-crystal mixtures The invention relates to compounds of the formula (I) and also liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: in which R1 is H, F, CF3, OCF... | 07/06/2004 |
| 6737125 | Fluorinated cyclopenta[a]naphthalenes and their use in liquid-crystal mixtures Compounds of the formula (I), liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: in which R1 is H, F, CF3, OCF3, OCF2H, OCFH | 05/18/2004 |
| 6730803 | Synthetic intermediate for epothilone derivative and production method thereof The β-keto ester compound, β-hydroxy acid compound and acetonide form of a 1,3-diol derivative of the formulas (I), (V) and (VIII) wherein each symbol is as defined in the specification, are useful as a synthetic inter... | 05/04/2004 |
| 6692657 | Alkenyl compound having a negative Ɗ&3xb5; value, liquid crystal composition, and liquid crystal display device Liquid crystalline compounds having a large negative Ɗ.di-elect cons. low viscosity, a large K33 /K11 value, a small Ɗ.di-elect cons./Ɗ.perp. and mutually excellent solubility even at low temperature, compositions containing at le... | 02/17/2004 |
| 6685995 | Ester compounds, liquid crystal compositions and liquid crystal display devices Liquid crystalline compounds suitable for driving at a low voltage and at a wide temperature range, and suitable for high speed response, liquid crystal compositions comprising the compound, and liquid crystal display devices comprising the liquid crystal... | 02/03/2004 |
| 6673934 | Primary intermediates for oxidative coloration of hair Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): ##STR1## wherein R is hydrogen, hydroxy, nitro, amino, halogen, C1 to C5 alkyl or haloalkyl, C1 to C5... | 01/06/2004 |
| 6649227 | Difluorovinyl compound, liquid crystal composition and liquid crystal display Provided are liquid crystalline compounds having a wide liquid crystal phase temperature range, low viscosity, a large elastic constant ratio K33 /K11 and excellent solubility at low temperature, a liquid crystal composition using th... | 11/18/2003 |
| 6632484 | Dialkyne compounds Described are dialkyne compounds of the formula I ##STR1## in which n, m, R1, R2, X1, X2, X3, X4, Z1, Z2, A1, A2, Q, Y1 and Y2 a... | 10/14/2003 |
| 6630210 | Pentafluorosulfuranylbenzene derivatives The invention relates to pentafluorosulfuranylbenzene derivatives of the formula I ##STR1## in which R1, A1, A2, Z1, L1, L2, L3 and n are as defined herein and to the use thereof... | 10/07/2003 |
| 6620468 | Dioxane derivatives, and liquid-crystalline medium The invention relates to novel dioxane derivatives of the formula I in which R1, R2, A1, A2, A3, A4, Z1, Z2, m and n are as defined herein, to their use as components of li... | 09/16/2003 |
| 6616990 | Chiral 1, 3-dioxane compounds The present invention relates to chiral 1,3-dioxane compounds and diastereomers thereof of the general formula I ##STR1## where R1, R2 and R3 are as defined in the description, and the use of these compounds as chiral dopa... | 09/09/2003 |
| 6610892 | Process for preparing 2,7-dimethyl-2,4,6-octatrienal monoacetals The invention relates to a process for preparing 2,7-dimethyl-2,4,6-octatrienal monoacetals of the general formula I ##STR1## which comprises a) condensing an ester phosphonium salt of the general formula II or an ester phosphonate of the general form... | 08/26/2003 |
| 6576303 | Liquid crystal compounds exhibiting negative anisotropy of permittivity Novel liquid crystal compound having a negative and absolutely large value of dielectric anisotropy, being excellent in compatibility with other liquid crystalline compounds at a low temperature and being stable chemically and physically, as well as a liq... | 06/10/2003 |
| 6555685 | Process for the production of purine derivatives and intermediates therefor A process for preparing purine derivatives, such as famiciclovir and penciclovir, by reacting, in the presence of a palladium (0) catalyst and a ligand, a compound of the formula ##STR1## with a compound of the formula ##STR2## wherein X is H, OH or ... | 04/29/2003 |
| 6544604 | Liquid crystalline compound having difluoropropyleneoxy group as bonding group, liquid crystal composition and liquid crystal display element The present invention provides a liquid crystalline compound having a difluoropropyleneoxy group as a bonding group, which is represented by Formula (1): ##STR1## wherein R1 and R2 each independently represent hydrogen, halogen, ... | 04/08/2003 |
| 6515149 | Acetal compound, polymer, resist composition and patterning response Acetal compounds in which a 5- or 6-membered ring acetal structure is connected to a norbornene structure through a linker represented by --(CH2)m -- in which one hydrogen atom may be substituted with a hydroxyl or acetoxy group, and... | 02/04/2003 |
