Abstract:
Formylaminophenylsulfonylureas; processes for their preparation, and their use as herbicides and plant growth regulators Compounds of the formula (I) ##STR1## in which R.sup.1 is H, a substituted or unsubstituted hydrocarbon radical or an unsubstituted or substituted heterocyclic radical, R.sup.2 is H, (C.sub.1 -C.sub.6)-alkyl or (C.sub.1 -C.sub.6)-alkoxy, R.sup.3 is halogen, (C.sub.1 -C.sub.6)-alkyl, (C.sub.1 -C.sub.6)-alkoxy, (C.sub.1 -C.sub.6)-haloalkyl, (C.sub.1 -C.sub.6)-haloalkoxy, NO.sub.2, CN, NH.sub.2, (C.sub.1 -C.sub.4) -mono- or dialkylamino, each independently of other radicals R.sup.3 if n is 2 or 3, n is 0, 1, 2 or 3, W is an oxygen atom or a sulfur atom, X and Y independently of one another are halogen, (C.sub.1 -C.sub.6)-alkyl, (C.sub.1 -C.sub.6)-alkoxy or (C.sub.1 -C.sub.6)-alkylthio, each of the three last-mentioned radicals being unsubstituted or substituted by one or more radicals selected from the group consisting of halogen, (C.sub.1 -C.sub.4)-alkoxy and (C.sub.1 -C.sub.4)-alkylthio, or are (C.sub.3 -C.sub.6)-cycloalkyl, (C.sub.2 -C.sub.6)-alkenyl, (C.sub.2 -C.sub.6)-alkynyl, (C.sub.2 -C.sub.6)-alkenyloxy, (C.sub.2 -C.sub.6)-alkynyloxy, mono- or di�(C.sub.1 -C.sub.4 -alkyl)!amino, and Z is CH or N, are suitable as herbicides and plant growth regulators. The compounds (I) can be prepared by processes analogous to known processes whereby some novel intermediates of formula (II) are used.
Abstract:
Substituted (hetero)aryl compounds, process for their preparation, agents containing them, and their use as safeners Compounds of the formula I and their salts, as defined in claim 1, are suitable as safeners for protecting crop plants against the phytotoxic side-effects of herbicides.
Abstract:
The compounds of the formula (I) ##STR1## in which R.sup.1 -R.sup.4, W, X, Y and Z are as defined in claim 1 are suitable for controlling harmful plants in crops. Their preparation may employ the intermediates of the formulae II and III: ##STR2##
Abstract:
Fluoromethylsulfonyl-substituted pyridylsulfonylureas as herbicides, process for their preparation, and their use.Compounds of the formula (II) or salts thereof, ##STR1## R.sup.1 is hydrogen, methyl or ethyl, Z is CH or N and one of the radicals X and Y is halogen, (C.sub.1 -C.sub.2)alkyl, (C.sub.1 -C.sub.2)alkoxy, OCHF.sub.2 or CF.sub.3 and the other one of the radicals X and Y is (C.sub.1 -C.sub.2)alkyl, (C.sub.1 -C.sub.2)alkoxy or OCHF.sub.2, are suitable as selective herbicides for use in crops.They can be prepared by the process as claimed in claim 4, in which, in some cases, intermediates of the formula (III) are employed: ##STR2##
Abstract:
Compounds of the formula (I) and their salts as defined below, ##STR1## in which R.sup.1 is CO--Q--R.sup.8, where R.sup.8 .dbd.H or RR.sup.2 and R.sup.3 are H or (C.sub.1 -C.sub.4)alkyl,R.sup.4 is H, R, RO, OH, RCO, RSO.sub.2, PhSO.sub.2R.sup.5 is RSO.sub.2, PhSO.sub.2, PhCO, RNHSO.sub.2, R.sub.2 NSO.sub.2, RCO, CHO, COCOR', CW--T--R.sup.9, CW--NR.sup.10 R.sup.11, CW--N(R.sup.12).sub.2 orR.sup.4 and R.sup.5 together are the chain (CH.sub.2).sub.m B or --B.sup.1 --(CH.sub.2).sub.m1 B-- where B.dbd.SO.sub.2, CO; m=3, 4; m.sup.1 =2, 3;T and W.dbd.O, S; Q.dbd.O, S, NR.sup.13 where R.sup.13 .dbd.H, R;R.sup.6 .dbd.H, R, RO, RCO, ROCO, Hal, NO.sub.2, CN;R.sup.7 .dbd.H, CH.sub.3 ; R.sup.9 .dbd.R; R.sup.10, R.sup.11 .dbd.H, R; N(R.sup.12).sub.2 =heterocycleA=pyrimidinyl and triazinyl radical or an analog thereof,where R=(substituted) aliphatic hydrocarbon radical, are suitable as selective herbicides. They are prepared by analogous processes via sulfonamides.
Abstract:
The invention relates to herbicidal compositions containing at least one compound from the group comprising imazaquin (A1), imazethapyr (A2) and imazethamethapyr (A3, AC 263222) in combination with at least one herbicide selected from the series comprising dicamba (B1), 2,4-D (B2), bromoxynil (B3), pyridate, the cyclohexanedione group and the pyridylsulfonylurea group.
Abstract:
Known herbicides of the formula (I) ##STR1## in which R.sup.1 is alkyl, alkenyl or alkynyl, which are optionally substituted by halogen, alkoxy or alkoxycarbonyl,R.sup.2 is H, alkyl, alkenyl, alkynyl or cycloalkyl,R.sup.3 and R.sup.4 are H or alkyl,R.sup.5 and R.sup.6 are H, alkyl or alkoxy, each of which can be substituted by halogen, alkoxy or alkylthio, or are halogen, alkylthio, alkylamino or dialkylamino,or, if R.sup.2 or R.sup.3 is H, their salts with bases, can be obtained when compounds of the formula IIR.sup.1 --SO.sub.2 --NR.sup.2 --SO.sub.2 --NR.sup.3 --CO--OR.sup.7(II)in whichR.sup.1, R.sup.2 and R.sup.3 are as defined above,are reacted with compounds of the formula III ##STR2## in which R.sup.4, R.sup.5 and R.sup.6 are as defined above andR.sup.7 is alkyl, haloalkyl or optionally substituted phenyl,in an inert organic solvent, to give the compounds of the formula I.
Abstract:
Compounds of the formula I or their salts ##STR1## wherein R.sup.1 and R.sup.2 denote H, halogen, alkyl, alkenyl, alkynyl or alkoxy, which can be substituted, or denote --(CH.sub.2).sub.n --COOR.sup.11 ;R.sup.3 denotes H, alkyl, alkenyl or alkynyl;R.sup.4 denotes a heterocyclic radical of the formulae ##STR2## where E is CH or N; X is O or S and a, b, c, d, e in each case denote 0, 1 or 2, with the proviso that c+d+e.gtoreq.2, possess excellent herbicidal and plant growth-regulating properties.
Abstract:
Aminopyrimidines of the formula (I) ##STR1## in which X and Y are in each case oxygen or sulfur andR.sup.1, R.sup.2 are independently of one another (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.2)alkyl or halo(C.sub.1 -C.sub.4)alkyl,are intermediates for the preparation of herbicides from the sulfonylurea group. According to the invention, compounds of the formula I can be prepared in a one-step process without pH control, which comprises the reaction of a propanediimidate of the formulaR.sup.1 X--C(.dbd.NH)--CH.sub.2 --C(.dbd.NH)--YR.sup.2or its salt with an alkali metal or alkaline earth metal salt of the cyanamide, in which a solution of the compounds in an alcohol of the formula R.sup.4 --OH, in which R.sup.4 is (C.sub.1 -C.sub.6)alkyl, or, simultaneously, separate solutions of the compounds in each case in an alcohol R.sup.4 --OH are added to an inert organic solvent which is higher-boiling in comparison to the alcohol at temperatures above 100.degree. C. with simultaneous removal of the alcohol by distillation.
Abstract:
N-acyl-2-amino acid amides containing phosphinic esters, process for their preparation, and N-acyl-2-amino acid nitriles as precursorsPhosphorus-containing N-acyl-2-amino acid amides of the general formula (I) ##STR1## where R.sup.1 is alkyl, optionally substituted by halogen or alkoxy, or is benzyl or phenyl, each of which is optionally substituted by alkyl, alkoxy, halogen, nitro or CF.sub.3, or is cycloalkyl, andR.sup.2 is H, or alkyl, optionally substituted by halogen or alkoxy, or is (CH.sub.2).sub.n -phenyl, optionally substituted in the phenyl ring by alkyl, alkoxy, halogen, nitro or CF.sub.3, where n=0, 1, 2 or 3,are valuable intermediates for the preparation of L-phosphinothricin by enzymatic cleavage, and can be obtained from the corresponding N-acyl-2-amino acid nitrile by selective acid hydrolysis.