Patent number: 5589439
Abstract: Herbicidal novel tetrazolinone derivatives of the formula: ##STR1## wherein R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, orR.sup.1 and R.sup.2 form, together with the nitrogen atom to which R.sup.1 and R.sup.2 are bonded, a 5- or 6-membered heterocyclic ring, optionally fused to a carbocyclic ring optionally and independently substituted by C.sub.1-4 alkyl, andR.sup.3 is a 5-membered heterocyclic radical containing at least one hereto atom selected from the group consisting of nitrogen, oxygen, and sulfur, optionally substituted by at least one substitutent selected from the group consisting of halogen, benzyl, phenyl, halogen-substituted phenyl, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkyl, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylthio, C.sub.1-4 alkyl-sulfonyl and C.sub.
Type:
Grant
Filed:
July 28, 1995
Date of Patent:
December 31, 1996
Assignee:
Nihon Bayer Agrochem K.K.
Inventors:
Toshio Goto, Koichi Moriya, Fritz Maurer, Seishi Ito, Katsuaki Wada, Kazuhiro Ukawa, Ryo Watanabe, Asami Ito, Natsuko Minegishi
Patent number: 5589469
Abstract: There are provided novel substituted 3-aryl-pyrrolidine-2,4-dione derivatives of the formula (I) ##STR1## in which X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents a number from 0-3,A represents hydrogen, or represents alkyl, alkoxyalkyl or alkylthioalkyl, each of which is optionally substituted by halogen, cycloalkyl which is optionally interrupted by hetero atoms, or represents aryl, arylalkyl or hetaryl, each of which is optionally substituted by halogen-, alkyl-, halogenoalkyl-, alkoxy- or nitro,B represents hydrogen, alkyl or alkoxyalkyl,or in whichA and B together with the carbon atom to which they are bonded form an optionally substituted saturated or unsaturated cycle which can be interrupted by oxygen and/or sulphur.R represents the groups ##STR2## in which L, M as well as R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meaning given inthe text of the application.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
December 31, 1996
Assignee:
Bayer Aktiengesellschaft
Inventors:
Reiner Fischer, Bernd-Wieland Kr uger, Thomas Bretschneider, Christoph Erdelen, Ulrike Wachendorff-Neumann, Klaus L urssen, Hans-Joachim Santel, Robert R. Schmidt