Patent number: 5840661
Abstract: The present invention relates to novel 2-aryl-3-hydroxy-cyclopent-2-en-1-one derivatives of the formula (I) ##STR1## in which X represents halogen, nitro, cyano, alkyl, alkoxy, alkenyloxy, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl or halogenoalkoxy,Y represents hydrogen, halogen, nitro, cyano, alkyl, alkoxy, alkenyloxy, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl or halogenoalkoxy,Z represents halogen, nitro, cyano, alkyl, alkoxy or halogenoalkoxy andA, B, D.sup.1, D.sup.2, G and n have the meaning given in the description,several processes for their preparation and their use as compositions for controlling pests and as herbicides.
Type:
Grant
Filed:
December 31, 1996
Date of Patent:
November 24, 1998
Assignee:
Bayer Aktiengesellschaft
Inventors:
Reiner Fischer, Jacques Dumas, Thomas Bretschneider, Christoph Erdelen, Ulrike Wachendorff-Neumann, Hans-Joachim Santel, Markus Dollinger, Andreas Turberg, Norbert Mencke
Patent number: 5545769
Abstract: A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl.
Type:
Grant
Filed:
September 29, 1994
Date of Patent:
August 13, 1996
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Ralph T. Baker, Richard P. Beatty, William B. Farnham, Robert L. Wallace, Jr.
Patent number: 5481043
Abstract: Certain new phenone derivatives of the formula (I) ##STR1## in which R.sup.1 =CH.sub.3,R.sup.2 =H, Cl, Br, I, methyl, hydroxy, methoxy, propoxy, propoxy or ethoxy;R.sup.3 =H or .beta.-D-glykosyl;R.sup.4 =H, Cl, Br, I, methyl, hydroxy, methoxy, propoxy, iso-propoxy or ethoxy;R.sup.5 =H or hydroxy,and the pharmaceutically acceptable salts, ethers and esters thereof, with the exception of the compounds 4-hydroxyacetophenone, 4-hydroxy-3-methoxy-acetophenone, 4-glucopyranosyloxy-acetophenone, 4-glucopyranosyloxy-3-methoxyacetophenone, 4-galactopyranosyloxy-3-methoxy-acetophenone, 4-glucopyranosyloxy-3,5-dimethoxy-acetophenone and galactopyranosyloxy-3,5-dimethoxy-acetophenone and a method for manufacturing them and pharmaceutical preparations containing them. The invention also concerns pharmaceutical preparations containing at least one compound of the formula (II) ##STR2## in which R.sup.1 denotes H, OH, alkoxy or C.sub.1-8 alkyl;R.sup.2 denotes H or C.sub.1-4 alkoxy;R.sup.3 denotes OH or a .beta.
Type:
Grant
Filed:
February 18, 1992
Date of Patent:
January 2, 1996
Assignee:
Plantamed Arzneimittel GmbH
Inventors:
Hildebert Wagner, Walter Dorsch, Hermann Stuppner, Sandor Antus