Patents by Inventor Detlef Wollweber
Detlef Wollweber 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: 5091408Abstract: Fungicidal 3-cyano-4-phenyl-pyrroles of the formula ##STR1## in which R.sup.1 represents chlorine, bromine, alkyl, halogenoalkyl or halogenoalkoxy,R.sup.2 represents chlorine, bromine, alkyl, halogenoalkyl or halogenoalkoxy andR.sup.3 represents hydrogen or fluorine,with the proviso that at least one of the radicals R.sup.1 or R.sup.2 represents halogenoalkyl.Type: GrantFiled: April 6, 1990Date of Patent: February 25, 1992Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 5061312Abstract: Fungicidal N-vinyl-3-cyano-4-phenyl-pyrroles of the formula ##STR1## in which R.sup.1 represents alkyl,R.sup.2 represents alkyl, orR.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded form a 5- to 7-membered, saturated ring which is optionally monosubstituted to polysubstituted by identical or different substituents,R.sup.3 represents alkyl,R.sup.4 represents hydrogen, halogen, alkyl, halogenaolakyl, alkoxy, halogenoalkoxy, alkylthio or halogenoalkylthio,R.sup.5 represents hydrogen, halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio or halogenoalkylthio, orR.sup.4 and R.sup.5 together represent halogen-substituted alkylenedioxy, andR.sup.6 represents hydrogen or halogen.Type: GrantFiled: June 18, 1990Date of Patent: October 29, 1991Assignee: Bayer AktiengesellschaftInventors: Ulrich Heinemann, Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 5059616Abstract: A fungicidal composition comprising a fungicidally effective amount ofA) 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-ol of the formula ##STR1## and B) at least one member selected from the group consisting of 3-cyano-4-(2-fluoro-3-chloro-phenyl)-pyrrole of the formula ##STR2## 3-cyano-4-(2,4-difluoro-3-chlorophenyl)-pyrrole of the formula ##STR3## and 3-cyano-4-(2,3-dichloro-phenyl)-1-(N-methyl-N-furfuryl-aminomethyl)-pyrrol e of the formula ##STR4##Type: GrantFiled: October 3, 1990Date of Patent: October 22, 1991Assignee: Bayer AktiengesellschaftInventors: Stefan Dutzmann, Wilhelm Brandes, Dieter Berg, Graham Holmwood, Detlef Wollweber
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Patent number: 5034408Abstract: Fungicidal cyclopropanoylamino acid amide derivative of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are identical or different and represent hydrogen or alkyl;Q represents an unsubstituted or substituted straight-chain or branched alkylene chain, or together with the radical R.sup.4 and the nitrogen atom forms a pyrrolidine ring;A represents a straight-chain or branched alkylene chain;n represents the number 0 or 1 andAr represents unsubstituted or substituted aryl.Type: GrantFiled: April 25, 1990Date of Patent: July 23, 1991Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Gerd Hanssler
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Patent number: 5015757Abstract: 3-cyano-4-phenyl-pyrroles of the formula ##STR1## in which R stands for halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy or halogenoalkylthio,have been found. These compounds are useful as fungicides.Type: GrantFiled: May 21, 1990Date of Patent: May 14, 1991Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes
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Patent number: 4977182Abstract: Fungicidal 3-cyano-4-phenyl-pyrroles of the formula ##STR1## in which R.sup.1 stands for halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy or halogenoalkylthio andR.sup.2 stands for alkyl, alkoxy or alkoxyalkyl.Type: GrantFiled: April 12, 1989Date of Patent: December 11, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann
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Patent number: 4973350Abstract: Fungicidal 1-aminomethyl-3-(2-fluoro-3-chlorophenyl)-4-cyano-pyrrole derivatives of the formula ##STR1## in which R stands for a ##STR2## wherein R.sup.1 stands for optionally substituted alkyl, for alkenyl, alkinyl or cycloalkyl, or for in each case optionally substituted aralkyl or aryl,R.sup.2 stands for in each case optionally substituted heterocyclylalkyl, heterocyclylalkenyl, heterocyclylalkinyl or heterocyclyl, for dialkylaminoalkyl or for in each case optionally substituted cycloalkylalkyl or phenethyl,R.sup.3 stands for hydrogen or alkyl andR.sup.4 stands for cyano, alkanoyl, alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, for alkylsulphinyl, for alkylsulphonyl, for phenylsulphinyl or for phenylsulphonyl.The compound where R is replaced by an election-withdrawing leaving group is a novel intermediate.Type: GrantFiled: February 6, 1989Date of Patent: November 27, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes
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Patent number: 4965275Abstract: Fungicidal pyridine-4-carboxylic acid anilides of the formula ##STR1## in which R stands for hydrogen or alkyl,Q stands for a radical of the formula ##STR2## where R.sup.1 stands for hydrogen or alkyl,R.sup.2 stands for alkyl andn stands for a number 2, 3 or 4,Ar.sup.1 stands for an optionally substituted o-phenylene radical andAr.sup.2 stands for optionally substituted phenyl, with the proviso that at least one of the radicals Ar.sup.1 or Ar.sup.2 substituted by halogenoalkoxy or halogenoalkylthio,and acid addition salts and metal salt complexes thereof.Type: GrantFiled: February 24, 1989Date of Patent: October 23, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wolfgang Kramer, Stefan Dutzmann, Wilhelm Brandes
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Patent number: 4965363Abstract: A process for the preparation of a 3-cyano-4-arylpyrrole of the formula ##STR1## in which Ar is optionally substituted heteroaryl or aryl, comprising reacting an .alpha.-cyanocinnamamide of the formula ##STR2## with a sulphonylmethylisocyanide of the formulaR--SO.sub.2 --CH.sub.2 --NC (III)in whichR is alkyl, optionally substituted cycloalkyl or optionally substituted aryl,in the presence of a base and in the presence of a diluent.The products are known fungicides.Type: GrantFiled: January 5, 1989Date of Patent: October 23, 1990Assignee: Bayer AktiengesellschaftInventor: Detlef Wollweber
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Patent number: 4963181Abstract: Fungicidal 3-cyano-4-phenyl-pyrrole= derivatives of the formula ##STR1## in which Ar stands for phenyl which is trisubstituted to pentasubstituted andR stands for alkyl, alkoxy or alkoxyalkyl.Claimed are compounds of the formula (I) wherein Ar is phenyl which is trisubstituted by halogen, at least one of which is fluorine, and R is alkyl, alkoxy or alkoxyalkyl each having 1 to 6 carbon atoms in the individual alkyl moieties, fungicidal compositions containing the compounds, and a method of combating fungi comprising administering the compounds to the fungi or their habitat.Type: GrantFiled: April 12, 1989Date of Patent: October 16, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann
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Patent number: 4960789Abstract: 3-cyano-4-phenyl-pyrroles of the formula ##STR1## in which R stands for halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy or halogenoalkylthio,have been found. These compounds are useful as fungicides.Type: GrantFiled: November 3, 1988Date of Patent: October 2, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes
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Patent number: 4957919Abstract: Fungicidally active novel 1-aminomethyl-3-aryl-4-cyano-pyrroles of the formula ##STR1## in which Ar represents optionally substituted phenyl,R.sup.1 represents optionally substituted alkyl, represents alkenyl, alkynyl or cycloalkyl, or represents in each case optionally substituted aralkyl or aryl, andR.sup.2 represents in each case optionally substituted heterocyclylalkyl, heterocyclylalkenyl, heterocyclylalkynyl or heterocyclyl, represents dialkylaminoalkyl, or represents in each case optionally substituted cycloalkylalkyl or phenethyl.Type: GrantFiled: January 12, 1990Date of Patent: September 18, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wolfgang Kramer, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4952601Abstract: Fungicidal 3-cyano-4-phenyl-pyrrole derivatives of the formula ##STR1## in which Ar stands for trisubstituted, tetrasubstituted or pentasubstituted phenyl.Type: GrantFiled: November 2, 1988Date of Patent: August 28, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes
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Patent number: 4935416Abstract: Fungicidally active novel 1-aminomethyl-3-aryl-4-cyano-pyrroles of the formula ##STR1## in which AR represents optionally substituted phenyl.Type: GrantFiled: January 23, 1989Date of Patent: June 19, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4927844Abstract: New N-substituted dichloromaleimides of the general formula (I) ##STR1## in which R stands for hydrogen or alkylAr stands for optionally substituted aryl,A.sup.1 and A.sup.2 independently of one another each stand for optionally substituted alkylene andn stands for a number 0 or 1,with the exception of the compound 2-(dichloromaleimido)acetanilide, have been found. These compounds are useful as pesticides, especially as fungicides and bactericides.Type: GrantFiled: November 10, 1988Date of Patent: May 22, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wolfgang Kramer, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4923883Abstract: Fungicidally active novel 1-aminomethyl-3-aryl-4-cyano-pyrroles of the formula ##STR1## in which Ar represents optionally substituted phenyl,R.sup.1 represents optionally substituted alkyl, represents alkenyl, alkynyl or cycloalkyl, or represents in each case optionally substituted aralkyl or aryl, andR.sup.2 represents in each case optionally substituted heterocyclylalkyl, heterocyclylalkenyl, heterocyclylalkynyl or heterocyclyl, represents dialkylaminoalkyl, or represents in each case optionally substituted cycloalkylalkyl or phenethyl.Type: GrantFiled: June 8, 1989Date of Patent: May 8, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wolfgang Kramer, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4923994Abstract: A process for the preparation of a 3-cyano-4-arylpyrrole of the formula ##STR1## in which Ar is optionally substituted heteroaryl or aryl, which comprises (a) reacting an .alpha.-cyanoacrylic acid derivative of the formula ##STR2## in which R.sup.1 is amino or alkoxy, with an isocyanoacetic acid ester of the formula ##STR3## in which R.sup.2 is alkyl, in the presence of a base thereby to produce a .DELTA..sup.2 -pyrroline-2-carboxylic acid derivative of the formula ##STR4## in which X represents hydrogen or an equivalent of an inorganic or organic cation,and (b) oxidatively decarboxylating the .DELTA..sup.2 -pyrroline-2-carboxylic -pyrroline-2-carboxylic acid. The end products are known fungicides and the intermediates IVa are new and themselves fungicidally active.Type: GrantFiled: May 9, 1989Date of Patent: May 8, 1990Assignee: Bayer AktienegesellschaftInventor: Detlef Wollweber
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Patent number: 4914122Abstract: Fungicidally active novel 1-aminomethyl-3-aryl-4-cyano-pyrroles of the formula ##STR1## in which Ar represents optionally substituted phenyl,R.sup.1 represents optionally substituted alkyl, represents alkenyl, alkynyl or cycloalkyl, or represents in each case optionally substituted aralkyl or aryl, andR.sup.2 represents in each case optionally substituted heterocyclylalkyl, heterocyclylalkenyl, heterocyclylalkynyl or heterocyclyl, represents dialkylaminoalkyl, or represents in each case optionally substituted cycloalkylalkyl or phenethyl.Type: GrantFiled: January 25, 1988Date of Patent: April 3, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wolfgang Kramer, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4912229Abstract: A process for the preparation of a 3-cyano-4-aryl-pyrrole of the formula ##STR1## in which Ar is optionally substituted heteroaryl or aryl, which comprises (a) reacting an .alpha.-cyanoacrylic acid derivative of the formula ##STR2## in which R.sup.1 is amino or alkoxy, with an isocyanoacetic acid ester of the formula ##STR3## in which R.sup.2 is alkyl, in the presence of a base thereby to produce a .DELTA..sup.2 -pyrroline-2-carboxylic acid derivative of the formula ##STR4## in which X represents hydrogen or an equivalent of an inorganic or organic cation,and (b) oxidatively decarboxylating the .DELTA..sup.2 -pyrroline-2-carboxylic acid. The end products are known fungicides and the intermediates IVa are new and themselves fungicidally active.Type: GrantFiled: May 19, 1988Date of Patent: March 27, 1990Assignee: Bayer AktiengesellschaftInventor: Detlef Wollweber
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Patent number: 4904687Abstract: Fungicidally active substituted 3-arylpyrroles of the formula ##STR1## in which Ar represents optionally substituted aryl or optionally substituted heteroaryl.Type: GrantFiled: July 15, 1988Date of Patent: February 27, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes