Patents by Inventor Ernst Kysela
Ernst Kysela has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7250521Abstract: 2,5-Bisaryl-?1-pyrrolines of the formula (I) in which Ar1 and Ar2 are as defined in the description can be prepared by reacting aroylpyrrolidinones of the formula (II) in which Ar1 and Ar2 are as defined in the description with an acid, if appropriate in the presence of a diluent.Type: GrantFiled: April 8, 2002Date of Patent: July 31, 2007Inventors: Udo Kraatz, Andrew Plant, Ernst Kysela, Albrecht Marhold
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Publication number: 20040147764Abstract: 2,5-Bisaryl-&Dgr;1-pyrrolines of the formula (I) 1Type: ApplicationFiled: March 8, 2004Publication date: July 29, 2004Inventors: Udo Kraatz, Andrew Plant, Ernst Kysela, Albrecht Marhold
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Patent number: 6455725Abstract: The invention relates to substituted cinnamic acids and cinnamic acid esters of formula (I), wherein X represents F, Cl or J and R1 and R2 are the same or different and represent hydrogen, an optionally substituted C1-C10-alkyl radical or an optionally substituted benzyl radical. Substituted indanone carboxylic acid esters are produced using said substituted cinnamic acid and cinnamic acid ester in a technically simple and non-dangerous manner as far as safety is concerned.Type: GrantFiled: February 13, 2001Date of Patent: September 24, 2002Assignee: Bayer AktiengesellschaftInventors: Walter Lange, Joachim Komoschinski, Guido Steffan, Ernst Kysela
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Patent number: 6137011Abstract: Bistrifluoromethylbenzylamines are obtained in a simple manner in high purities and with good yields by catalytic hydrogenation of the corresponding bistrifluoromethylbenzonitriles if the process is carried out in the presence of Raney cobalt, at least one aliphatic ether and ammonia.Type: GrantFiled: February 25, 2000Date of Patent: October 24, 2000Assignee: Bayer AktiengesellschaftInventors: Albrecht Marhold, Ernst Kysela
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Patent number: 6031134Abstract: The invention relates to a novel process for the preparation of 2-amino-2-arylehanols of the formula (I) ##STR1## in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned:halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, unsubstituted or substituted cycloalkyloxy or unsubstituted or substituted phenyl,which comprises catalytically hydrogenating .alpha.-hydroxyketoximes of the formula (II) ##STR2## in which Ar has the meaning given above,using Raney nickel or Raney cobalt in the presence of a diluent and in the presence of a base andnovel 2-amino-2-arylethanols and novel .alpha.-hydroxyketoximes.Type: GrantFiled: November 4, 1998Date of Patent: February 29, 2000Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Ernst Kysela, Albrecht Marhold
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Patent number: 6022995Abstract: The invention relates to a novel process for the preparation of 2-amino-2-arylethanols of the formula (I) ##STR1## in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned:halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, unsubstituted or substituted cycloalkyloxy or unsubstituted or substituted phenyl,which comprises catalytically hydrogenating .alpha.-hydroxyketoximes of the formula (II) ##STR2## in which Ar has the meaning given above,using Raney nickel or Raney cobalt in the presence of a diluent and in the presence of a base andnovel 2-amino-2-arylethanols and novel .alpha.-hydroxyketoximes.Type: GrantFiled: September 27, 1996Date of Patent: February 8, 2000Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Ernst Kysela, Albrecht Marhold
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Patent number: 5925788Abstract: 2-Trifluoromethoxy-benzenesulphonamide, of the formula (I), ##STR1## which can be used as intermediate for the preparation of certain herbicidally active compounds is obtained in very high yield and high purity by a process in which halogenated trifluoromethoxy-benzenesulphonamides of the general formula (II) ##STR2## in which X.sup.1 represents halogen and X.sup.2 represents hydrogen or halogenare reacted with hydrogen in the presence of a catalyst and in the presence of a diluent and, if appropriate, in the presence of an acid acceptor at temperatures between 0.degree. C. and 200.degree. C. ("dehalogenated"), the resulting compound of the formula (I) is isolated in the customary manner in the event that "X.sup.2 =halogen" and converted into a pure, crystalline product by treating it with a protic polar organic liquid and isolated by removing the liquid component by means of filtration with suction in the event that "X.sup.2 =H".Type: GrantFiled: May 14, 1998Date of Patent: July 20, 1999Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Albrecht Marhold, Ernst Kysela
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Patent number: 5858922Abstract: The invention relates to novel fluorothiadiazolyloxyacetamides of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or respectively optionally substituted alkyl, alkenyl, alkynyl or arylalkyl,R.sup.2 represents respectively optionally substituted alkyl, alkoxy, alkenyl, alkenyloxy, alkynyl, cycloalkyl, cycloalkenyl, aryl, arylalkyl or arylalkyloxy, orR.sup.1 and R.sup.2 together with the nitrogen atom that they are attached to form an optionally substituted saturated or unsaturated nitrogen heterocycle which may contain further hetero atoms and to which a benzo grouping may be fused, andR.sup.3 represents fluorothiadiazolyl,to a process and to novel intermediates for their preparation and to their use as herbicides.Type: GrantFiled: September 5, 1997Date of Patent: January 12, 1999Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Achim Bertsch, Stefan Bohm, Hans-Joachim Diehr, Ernst Kysela, Markus Dollinger, Hans-Joachim Santel
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Patent number: 5744633Abstract: A new process for the production of high purity (cyclo)aliphatic diurethanes from (cyclo)aliphatic diamines, alcohols and urea in a multistep reaction in which (1) urea is reacted with alcohol with elimination of ammonia, (2) diamine is then introduced into the reaction mixture, optionally in the form of a solution in alcohol, and reacted with continuous release of ammonia and (3) the reaction mixture is freed from volatile components by distillation. The diurethanes produced by this process are useful as starting materials for the production of the corresponding diisocyanates by thermal urethane cleavage.Type: GrantFiled: December 2, 1994Date of Patent: April 28, 1998Assignee: Bayer AktiengesellschaftInventors: Oswald Wilmes, Eberhard Konig, Klaus Nachtkamp, Ernst Kysela
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Patent number: 5602282Abstract: The invention relates to a novel process for the preparation of 2-amino-2-arylethanols of the formula (I) ##STR1## in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned:halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, unsubstituted substituted cycloalkyloxy or unsubstituted or substituted phenyl,which comprises catalytically hydrogenating .alpha.-hydroxyketoximes of the formula (II) ##STR2## in which Ar has the meaning given above,using Raney nickel or Raney cobalt in the presence of a diluent and in the presence of a base andnovel 2-amino-2-arylethanols and novel .alpha.-hydroxyketoximes.Type: GrantFiled: August 4, 1995Date of Patent: February 11, 1997Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Ernst Kysela, Albrecht Marhold
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Patent number: 5319074Abstract: A metal-free dyestuff of the formula ##STR1## and metal complex thereof wherein: Fb=the radical of a dyestuff selected from the group consisting of mono- or polyazo, anthraquinone, phthalocyanine, formazan, dioxazine and triphenylmethane radicals,B and B'=a direct bond or an aliphatic or aromatic bridge member to a ring C atom of an aromatic-carbocyclic ring or to a ring C or N atom or an aromatic-heterocyclic ring in Fb,X=CH.dbd.CH.sub.2 or CH.sub.2 CH.sub.2 --Y, whereinY=OSO.sub.3 H, SSO.sub.3 H, OCOCH.sub.3, OPO.sub.3 H.sub.2, OSO.sub.2 CH.sub.3, SCN, NHSO.sub.2 CH.sub.3 --, Cl, Br, F, OCOC.sub.6 H.sub.5, OSO.sub.2 --C.sub.6 H.sub.4 CH.sub.3, ##STR2## R=H or C.sub.1 -C.sub.4 -alkyl, which is optionally be substituted by halogen, hydroxy, cyano, C.sub.1 -C.sub.4 -alkoxy, carboxyl, sulpho or sulphato,Z=a fiber-reactive radical of the formula ##STR3## wherein M=H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -thioalkyl, F or CF.sub.Type: GrantFiled: January 24, 1992Date of Patent: June 7, 1994Assignee: Bayer AktiengesellschaftInventors: Wolfram Reddig, Karl-Josef Herd, Ernst Kysela
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Patent number: 5175336Abstract: The invention relates to new fluoromethylated polycyanobenzenes of the formula ##STR1## in which X represents hydrogen, fluorine or chlorine,m is 1 or 2 andn is (6-m),to a process for their preparation and to the salt-like alkali metal cyanide adducts of the fluoromethylated polycyanobenzenes formed as intermediates in this preparation process and to the use of the fluoromethylated polycyanobenzenes for the detection of anions.Type: GrantFiled: May 16, 1991Date of Patent: December 29, 1992Assignee: Bayer AktiengesellschaftInventors: Gunther Beck, Wolfgang von der Emden, Helmut Heitzer, Friedrich W. Krock, Ernst Kysela, Albrecht Marhold
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Patent number: 5169427Abstract: Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides of the formula ##STR1## in which R.sup.1 represents hydrogen, or represents an optionally substituted radical selected from the group consisting of alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents an optionally substituted radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aralkyl, aryl, alkoxy, alkenyloxy and alkynyloxy, orR.sup.1 and R.sup.2, together with the nitrogen atom to which they are bonded, form an optionally substituted saturated or unsaturated nitrogen-heterocyclic radical, which can contain further hetero atoms and to which a benzo grouping can be fused, andR.sup.3 represents optionally substituted cycloalkyl.Intermediates of the formula ##STR2## are also new.Type: GrantFiled: May 28, 1991Date of Patent: December 8, 1992Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Hans-Joachim Diehr, Bernd Baasner, Ernst Kysela, Albrecht Marhold, Karl-Rudolf Gassen, Robert R. Schmidt
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Patent number: 5142092Abstract: Fluorine-containing acetophenones, optionally halogenated on the CH.sub.3 group, of the formula ##STR1## in which X represents hydrogen, chlorine or bromine and the radicals R.sub.1 to R.sub.5 have the following meaning,a) R.sub.1 and R.sub.4 denote fluorine, R.sub.2 and R.sub.5 denote chlorine and R.sub.3 denotes CF.sub.3, orb) R.sub.1, R.sub.3 and R.sub.4 denote fluorine and R.sub.2 and R.sub.5 denote hydrogen, orc) R.sub.1, R.sub.4 and R.sub.5 denote hydrogen, R.sub.2 denotes chlorine and R.sub.3 denotes CF.sub.3, ord) R.sub.1, R.sub.4 and R.sub.5 denote hydrogen, R.sub.2 denotes chlorine and R.sub.3 denotes OCF.sub.3, ore) R.sub.1, R.sub.4 and R.sub.5 denote hydrogen and R.sub.2 and R.sub.3 denote CF.sub.3, orf) R.sub.1 denotes chlorine, R.sub.2 denotes CF.sub.3 and R.sub.3, R.sub.4 and R.sub.5 denote hydrogen, org) R.sub.1 denotes chlorine, R.sub.2, R.sub.3 and R.sub.4 denote hydrogen and R.sub.5 denotes CF.sub.3, orh) R.sub.1 denotes chlorine, R.sub.2, R.sub.4 and R.sub.5 denote hydrogen and R.sub.Type: GrantFiled: July 30, 1991Date of Patent: August 25, 1992Assignee: Bayer AktiengesellschaftInventors: Ernst Kysela, Bernd Baasner, Klaus Schaller
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Patent number: 5138056Abstract: The invention relates to new polycyanopyrimidines of the formula ##STR1## in which R represents chlorine or cyano,and to a process for their preparation.Type: GrantFiled: June 10, 1991Date of Patent: August 11, 1992Assignee: Bayer AktiengesellschaftInventors: Gunther Beck, Ernst Kysela
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Patent number: 5097050Abstract: An oxirane of the formula ##STR1## in which Ar represents phenyl optionally substituted with from one to three halogen atoms,R represents alkyl having from 1 to 4 carbon atoms,X.sup.1 represents halogen,X.sup.2 represents hydrogen or halogen,X.sup.3 represents hydrogen or halogen,X.sup.4 represents hydrogen or halogen andn represents 0 to 1,useful as intermediates for the synthesis of fungicidal hydroxyalkinyl-azoles.Type: GrantFiled: February 14, 1991Date of Patent: March 17, 1992Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzcsh, Ernst Kysela, Karl H. Buchel, Stefan Dutzmann, Wilheim Brandes, Gerd Hanssler
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Patent number: 5068343Abstract: 4-Substituted 5-chloro-2-hydrazinothiazoles of the formula ##STR1## in which R represents CHF.sub.2, CF.sub.3, CN or COOR.sup.1, whereR.sup.1 represents C.sub.1 -C.sub.4 -alkyl.They are useful as pesticides and as intermediates for other pesticides.Type: GrantFiled: October 31, 1990Date of Patent: November 26, 1991Assignee: Bayer AktiengesellschaftInventors: Gunter Beck, Ernst Kysela, Rudolf Braden
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Patent number: 5025030Abstract: Novel hydroxyalkinyl-azolyl derivatives of the formula ##STR1## in which Ar represents optionally substituted aryl,R represents alkyl, optionally substituted aryl or optionally substituted aralkyl,X.sup.1 represents halogen,X.sup.2 represents hydrogen or halogen,X.sup.3 represents hydrogen or halogen,X.sup.4 represents hydrogen or halogen andn represents 0 or 1,and acid addition salts and metal salt complexes thereof, are outstandingly effective as fungicides.Type: GrantFiled: July 7, 1989Date of Patent: June 18, 1991Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Ernst Kysela, Karl H. Buchel, Stefan Dutzmann, Wilhelm Brandes, Gerd Hanssler
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Patent number: 4990661Abstract: A process for the preparation of a compound of the formula ##STR1## in which X.sup.1 and X.sup.2 each independently is chlorine or fluorine, andY is chlorine, bromine, fluorine or iodine, comprising subjecting a compound of the formula ##STR2## to a Sandmeyer or Balz-Schiemann reaction thereby to produce a carboxylic acid of the formula ##STR3## and converting the carboxylic acid (Ia) into an acyl chloride of the formula ##STR4## The compound (II) is new. The products are known intermediates for anti-bacterials.Type: GrantFiled: March 29, 1989Date of Patent: February 5, 1991Assignee: Bayer AktiengesellschaftInventors: Uwe Petersen, Michael Schriewer, Ernst Kysela, Klaus Grohe
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Patent number: 4990637Abstract: Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula ##STR1## in whichQ.sub.1 represents oxygen or sulphur,R.sup.1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents halogenoalkyl,X represents nitrogen or a --CH grouping,Y represents nitrogen or a --CR.sup.5 grouping,R.sup.5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl,Z represents nitrogen or a --CR.sup.6 grouping, andR.sup.6 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.Type: GrantFiled: January 30, 1990Date of Patent: February 5, 1991Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Klaus-Helmut Muller, Theodor Pfister, Hans-Jochem Riebel, Ernst Kysela, Hans-Joachim Santel, Robert R. Schmidt, Robert H. Strang