Patent number: 6352959
Abstract: Thiochromanoylpyrazolone derivatives of the formula I
where:
A is an unsubstituted or substituted, saturated or unsaturated alkyl chain;
R1 is cyano, thiocyanato, nitro, OR4, SR5, SOR6, S02R6, ONR6NR7, ON═CR6R8, NR9R10, P(O)R11R12, P(S)R11R12, COR, CO2R6, unsubstituted or substituted phenyl or heterocyclyl;
R2 is alkyl, haloalkyl, alkoxy or haloalkoxy;
R3 is hydrogen, alkyl or halogen;
X is oxygen, sulfur, S═O, S(═O)2, CR13R14, C═O or C═NR15;
m is 0, 1 or 2;
n is 0, 1, 2, 3 or 4;
R16 is substituted pyrazol-4-yl-carbonyl or substituted (4,5-dihydro-5-oxo-pyrazol-4-yl)methylidene;
and their agriculturally useful salts;
Processes for preparing the thiochromanoylpyrazolone derivatives, compositions comprising them, and the use of these derivatives or of the compositions comprising them for controlling undesirable plants are described.
Type:
Grant
Filed:
May 31, 2001
Date of Patent:
March 5, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Klaus Langemann, Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Norbert Götz, Martina Otten, Karl-Otto Westphalen, Helmut Walter
Patent number: 6306852
Abstract:
Compounds of formula (I), and their pharmaceutically acceptable derivatives, wherein R1 and R2 are optional substituents and independently represent C1-6 alkyl, C2-6 alkenyl, optionally substituted by CO2H or CO2(C1-6 alkyl), C2-6 alkynyl, halogen, C1-3 perfluoroalkyl, (CH2)mAr1, (CH2)mHet1, (CH2)mCONR7R8, (CH2)mCO2R8, O(CH2)qCO2R8, (CH2)mCOR8, (CH2)mOR8, O(CH2)pOR8, (CH2)mNR7R8, CO2(CH2)qNR7R8, (CH2)mCN, S(O)nR8, SO2NR7R8, CONH(CH2)mAr1 or CONH(CH2)mHet1; R3 represents H, C1-6 alkyl, (CH2)pNR9R10, SO2R10, SO2NR9R10, (CH2)mCO2R10, C2-6 alkenyl, C2-6 alkynyl, (CH2)mCONR9R10, (CH2)mCO2R10, (CH2)pCN, (CH2)pR10 or (CH2)pOR10; R4 represents H or C1-6 alkyl; R5 represents H or OH; R6 represents phenyl optionally fused to a herterocyclic ring, the group as a whole being optionally substituted; R7-10 are fully defined herein and may independently represent Ar2 or Het2; Z represents CO2H, CONH(tetrazol-5-yl), CONHSO2O(C1-4 alkyl), CO2Ar3, CO2(C1-6 alkyl), tetrazol-5-yl, CONHSO2Ar3, CONHSO2(CH2)qAr3 o
Type:
Grant
Filed:
April 24, 2000
Date of Patent:
October 23, 2001
Assignee:
Pfizer Inc.
Inventors:
David James Rawson, Kevin Neil Dack, Roger Peter Dickinson, Kim James