Patent number: 6277790
Abstract: Tetrazolinonecarboxamides of formula I
wherein
Het is oxetan-3-yl, thietan-3-yl, tetrahydrofuran-3-yl, furan-3-yl, tetrahydrothiophen-3-yl, thiophen-3-yl, tetrahydro-2H-pyran-3-yl, tetrahydro-2H-thiopyran-3-yl, tetrahydro-2H-pyran-4-yl or tetrahydro-2H-thiopyran-4-yl, in each case with or without substitution;
R1 is optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, phenyl, or 3- to 7-membered heterocyclyl;
R2 is hydrogen, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, or is optionally substituted cycloalkyl, cycloalkylalkyl, phenyl, phenylalkyl, 3- to 7-membered heterocyclyl, or 3- to 7-membered heterocyclylalkyl,
their preparation and herbicidal compositions comprising them.
Type:
Grant
Filed:
February 1, 2000
Date of Patent:
August 21, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Cyrill Zagar, Gerhard Hamprecht, Markus Menges, Olaf Menke, Robert Reinhard, Peter Schäfer, Karl-Otto Westphalen, Martina Otten, Helmut Walter