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| Number | Title | Issue Date |
| 7393970 | Boron carbide as an effective friedel-crafts type catalyst The compound boron carbide, B4C, is an effective catalyst for the synthesis of aromatic esters by reacting benzoyl halides with phenols in the presence of powdered B4C. ... | 07/01/2008 |
| 7025901 | Alkyl and aryl trifluoromethoxytetrafluorosulfuranes Novel compositions containing SF4—O—CF3 bonded to an organic group are disclosed. Aryl trifluoromethoxytetrafluorosulfuranes (or Ar—SF4—O—CF3), have been synthesized via the reaction of an aryl disulfide or thiol... | 04/11/2006 |
| 6972340 | Selective protein tyrosine phosphatatase inhibitors Compounds of formula (I) or therapeutically acceptable salts thereof, are selective protein tyrosine kinase-B (PTP1B) inhibitors. Preparation of the compounds, compositions containing the compounds, and treatment of di... | 12/06/2005 |
| 6936186 | Mesomorphic compound, polymeric mesomorphic compound, and electrolyte and secondary battery including same A mesomorphic compound having an ionic conductivity is used as an electrolyte for a secondary battery, etc. The mesomorphic compound has a partial structure which includes (a) a mesomorphic mesogen group and (b) two divalent groups. Each of the two divalent groups i... | 08/30/2005 |
| 6586609 | Process for esterification in a chromatographic reactor Process for the esterification of organic acids with alcohols in a reactor of the chromatographic type in which the heterogeneous solid phase is capable of acting both as an esterification catalyst and as a means exhibiting preferential adsorption towards... | 07/01/2003 |
| 6521663 | Aminoguanidinyl- and Alkoxyguanidinyl-substituted phenyl acetamides as protease inhibitors Phenyl acetamide compounds are described, including compounds of Formula I: ##STR1## or a solvate, hydrate or pharmaceutically acceptable salt thereof; wherein R3 -R6, R11, B, Y and W are set forth in the specification. Th... | 02/18/2003 |
| 6479693 | Process for the preparation of a saturated carboxylic acid The present invention relates to a process for the preparation of a carboxylic acid ester of the general formula II, ##STR1## wherein R is alkyl or aryl, R1 is aryl, substituted aryl, naphthyl or substituted naphthyl or alkyl, R2, R | 11/12/2002 |
| 6444841 | Hydroquinone diester derivatives and the method for producing the same A highly pure hydroquinone dietser derivative can be produced from the reaction product of ketoisophorone with an acylating agent in a high yield by a simple and easy operation. In the presence of an acid catalyst, a cyclohex-2-ene-1,4-dione derivative sh... | 09/03/2002 |
| 6440328 | Preparation of acrylated liquid-crystalline compounds The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1) (Z--Y1 --A2 --Y2 --)m M(--O--A1 -acrylate)n (1... | 08/27/2002 |
| 6350897 | Process for preparing trimethylhydroquinone diacetate and trimethylhydroquinone A process for preparing trimethylhydroquinone diacetate, with subsequent hydrolysis to give trimethylhydroquinone, the process including reacting 2,2,6-trimethylcyclohexane-1,4-dione under oxidative conditions, in the presence of a sulfonating agent and a... | 02/26/2002 |
| 6255517 | Thymol derivatives having anti-tumor activity, and anti-cancer agent comprising the same The present invention relates to a thymol derivative represented by following Chemical Formula 1, pharmaceutically acceptable salts or esters thereof, and anti-cancer agents comprising the same as an active ingredient. ##STR1##... | 07/03/2001 |
| 6201020 | Ortho-diphenol compounds, methods and pharmaceutical compositions for inhibiting parp This invention relates to compounds, pharmaceutical compositions, and methods of using compounds of the formula: ##STR1## A is O or S; R is C1 -C10 straight or branched chain alkyl, C2 -C10 straight or branched ... | 03/13/2001 |
| 6017541 | Immunogens for the production of cocaine-hydrolyzing catalytic antibodies Methods are described for the rapid synthesis in satisfactory yield of methyl ecgonine phenylphosphonates as analogues of transition states for the hydrolysis of the benzoyl ester of an ecgonine derivative, namely cocaine, and their linking to carrier pro... | 01/25/2000 |
| 5948922 | Compounds with substituted cyclic hydrocarbon moieties linked by secondary or tertiary oxycarbonyl containing moiety providing reworkable cured thermosets Compounds containing two cyclic hydrocarbon moieties which are substituted to provide crosslinking functionality and which are linked to each other by secondary or tertiary oxycarbonyl containing moiety are basis for compositions which are cured to provid... | 09/07/1999 |
| 5886238 | Alkene precursors for preparing chemiluminescent dialkyl-substituted 1,2-dioxetane compounds Alkene precursors for preparing dialkyl-substituted dioxetanes. The dioxetanes are useful for the detection of triggering agents including enzymes.... | 03/23/1999 |
| 5730985 | Immunogens for the production of cocaine-hydrolyzing catalytic antibodies Methods are described for the rapid synthesis in satisfactory yield of methyl ecgonine phenylphosphonates as analogues of transition states for the hydrolysis of the benzoyl ester of an ecgonine derivative, namely cocaine, and their linking to carrier pro... | 03/24/1998 |
| 5654471 | Process for the preparation of 4-hydroxyphenyl benzoate derivatives 4-Hydroxyphenyl benzoate derivatives of the general formula 1: ##STR1## are prepared by cleaving 1,4-bis(benzoyl)hydroquinone derivatives of the general formula 2: ##STR2## with alkali metal alkanolates, in which in the general formulae 1 and 2 ... | 08/05/1997 |
| 5599359 | Polyalkylphenyl and polyalkyloxycarbonylphenyl hydroxybenzoates and fuel compositions containing the same A compound of the formula: ##STR1## wherein X is hydrogen or hydroxy, and Y is --R or --C(O)O--R, wherein R is a polyalkyl group having an average molecular weight of about from 450 to 5000; or a fuel soluble salt thereof. The compounds of formula I ... | 02/04/1997 |
| 5565605 | Synthesis of aryl carboxylates by transesterification using a heterogeneous microporous catalyst containing a group IV metal A catalyst for producing an aryl ester, which includes a microporous material containing a metal element belonging to group IV, is described. This catalyst is insoluble and can be used as a heterogeneous catalyst, to produce an aryl ester in high yield wi... | 10/15/1996 |
| 5565490 | P-hydroxyaniline derivatives, their preparation and their use p-Hydroxyaniline derivatives of the formula I ##STR1## where the substituents have the following meanings: R1 is hydrogen, or unsubstituted or substituted alkyl; R2 and R3 independently of one another are halogen, alkyl, ... | 10/15/1996 |
| 5510447 | Polymeric vehicle for coatings This invention relates to a polymeric vehicle comprising a modified polymer containing covalently bonded mesogenic groups. The modified polymer may be used as the sole component of the polymeric vehicle for a coating to which may be added solvents and kno... | 04/23/1996 |
| 5468897 | Bi-aromatic esters, a process for their preparation and their use in human or veterinary medicine and in cosmetic compositions Bi-aromatic esters have the formula ##STR1## wherein R1 represents H, OH, --CH3, --CH2 OH, --CH(OH)CH3, --COOR9, ##STR2## or SO2 R10 ; R9 represents H, C | 11/21/1995 |
| 5447659 | Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --CCO--, --OCO--, --CH2 C-- or --OCH2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl ... | 09/05/1995 |
| 5380917 | Process for the production of benzoyloxybenzene sulfonates Process for the production of a benzoyloxybenzene sulfonate by reaction of a phenol sulfonate with an optionally substituted benzoyl chloride in the presence of a base, wherein the reaction is carried out in a solvent mixture consisting of water and an or... | 01/10/1995 |
| 5374376 | Optically active aromatic compounds, preparation process therefor, liquid crystal materials and a light switching element Disclosed are herein optically active aromatic compounds represented by the formula (I): ##STR1## wherein X represents --COO-- or --OCO--; Y represents --COO--, --OCO-- or --O--; R2 represents an alkyl or alkoxyalkyl group having 1 to 20 ... | 12/20/1994 |
| 5338484 | Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --COO--, --OCO--, --CH2 O-- or --OCH2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl ... | 08/16/1994 |
| 5332856 | Bi-aromatic esters, a process for their preparation and their use in human or veterinary medicine and in cosmetic compositions Bi-aromatic esters have the formula ##STR1## wherein R1 represents H, OH, --CH3, --CH2 OH, --CH(OH)CH3, --COOR9, ##STR2## or SO2 R10 ; R9 represents H, C | 07/26/1994 |
| 5328643 | Optically active compounds, liquid crystal composition containing said compounds, and liquid crystal optical modulator using said composition The invention relates to optically active compounds represented by the general formula I ##STR1## wherein R1, R2, R3, R4, Q1, Q2, Q3, and M are defined as in the specificati... | 07/12/1994 |
| 5306837 | Intermediates for an optically active cyclobutane nucleoside Novel intermediates useful in the preparation of the optically active antiviral compound [1R-(1,2ଲ,3)]-2-amino-9-[2,3-bis(hydroxymethyl)cyclobut yl]-1,9-dihydro-6H-purin-6-one are described.... | 04/26/1994 |
| 5274172 | Preparing granular esters There is disclosed a process for preparing granular esters in one step by the reaction of an alcohol with acid chloride in an aqueous alkaline medium with moderate shear agitation and optionally in the presence of a surfactant.... | 12/28/1993 |
| 5238602 | Liquid crystals Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; the rings A1, A2 and A3 represent 1,4-phenylene, 2-fluoro-1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also represents a ... | 08/24/1993 |
| 5234946 | Substituted alkylamine derivatives The substituted alkylamine derivatives represented by formula (I) ##STR1## wherein R1 represents (a) substituted or unsubstituted C2-6 alkenyl group, (b) substituted or unsubstituted C3-6 cycloalkenyl group, (c) subst... | 08/10/1993 |
| 5204454 | Prepolymeric polyols containing mesogenic units Prepolymer polyols containing mesogenic moieties useful as reactants for the preparation of resinous materials are disclosed. Synthesized by condensing a polyether polyol with bifunctional mesogenic diacids, or diesters, the compounds of the invention are... | 04/20/1993 |
| 5200550 | Bi-aromatic esters, a process for their preparation and their use in human or veterinary medicine and in cosmetic compositions Bi-aromatic esters have the formula ##STR1## wherein R1 represents H, OH, --CH3, --CH2 OH, --CH(OH)CH3, --COOR9, ##STR2## or SO2 R10 ; R9 represents H, C | 04/06/1993 |
| 5167863 | Optically active compound, liquid crystal composition containing said compound, and liquid crystal optical modulator using said composition There are disclosed an optically active compound represented by the general formula: ##STR1## wherein n, R1, R2, R3, R4, Q1, Q2, Q3, and M are defined as in the detailed exp... | 12/01/1992 |
| 5144059 | Catecholamine esters The compound of the formula ##STR1## (wherein R, R1 and R2 have the meanings given in the description), salts thereof with pharmaceutically acceptable organic or inorganic acids, process and intermediates for the preparation the... | 09/01/1992 |
| 5137653 | Alkanoyl ester compounds and their intermediates and method of producing the same This invention provides a novel alkanoyl ester compound represented by general formula (I): ##STR1## (wherein A is of --, --O--, ##STR2## B is ##STR3## l and m are 1 or 2 provided that both are not simultaneously 2, k and n are an... | 08/11/1992 |
| 5133896 | Cyanohyorin derivatives and their use in liquid crystal materials and devices Novel cyanohydrin derivatives of general formula (I) wherein R1 is hydrogen, alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy, R2 is alkyl, r is 1 to 10, n and m are 0 or 1, provided if both n and m are 0 then X is (II) or (III), whe... | 07/28/1992 |
| 5130048 | Ferroelectric liquid crystal compositions containing chiral haloalkoxy tails units The subject application discloses a chiral nonracemic composition of the general formula: R1 --Ar--O--CH2 --C*HX--C*HY--CH2 --O--R2 wherein R1 is an achiral tail of two to sixteen carbons; Ar is an achiral... | 07/14/1992 |
| 5124070 | Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element Disclosed are herein optically active ester derivatives represented by the formula (I): ##STR1## (wherein R1 represents an alkyl group having 3 to 20 carbon atoms; R2 represents an optically active alkyl or alkoxyalkyl group hav... | 06/23/1992 |
