摘要:
Novel 3,4-dihydro-1,2,4-triazine compounds of the formula ##SPC1##In whichR.sup.1 is alkyl or cycloalkyl;R.sup.2 is methyl, amino, alkylideneamino, methylamino, .beta.-hydroxyethylamino, 2-furylmethylamino, aralkylamino or substituted aralkylamino; and R.sup.3 is alkyl, aryl or substituted aryl;Are prepared by reacting the corresponding 1,2,4-triazin-5-one with sodium borohydride in the presence of a polar solvent at a temperature between -10.degree. and +25.degree.C. The novel compounds are outstandingly effective as herbicides and display particularly selective action.
摘要:
Azomethine compounds of 4-amino-5-H-1,2,4-triazin-5-ones of the formula ##SPC1##Wherein:R.sup.1 is alkyl, cycloalkyl or phenyl;R.sup.2 is hydrogen or alkyl;R.sup.3 is alkyl, alkoxy, cycloalkyl, cycloalkenyl, aralkyl, aryl or heteroaryl, or dialkylamino;R.sup.2 and R.sup.3 jointly can be an alkylene bridge, optionally interrupted by a hetero atom; andR.sup.4 is alkyl or optionally substituted phenyl,Are markedly effective herbicides, particularly selective herbicides for weeds growing in oats, wheat, cotton, maize, tomatoe, potatoe, soybean, and especially in beet cultivations.
摘要:
New heterocyclically-substituted 4-amino-1,2,4-triazin-5-one compounds, herbicidal compositions containing them and their use as herbicides are disclosed.It is known that 1,2,4-triazionones, such as, for example, 4-amino-3-methyl-6-phenyl-1,2,4-triazine-5-one, can be used for combatting weeds, especially for selectively combatting weeds, from German Offenlegungsschrift (German Published Specification) 2,224,161. Their general herbicidal action is, however, not always entirely statisfactory, especially when low amounts and low concentrations are used.
摘要:
N-(1,2,4-Triazin-5-on-4-yl)-glycine compounds of the formula ##STR1## in which R.sup.1 is alkyl, alkoxy, alkylthio or alkylamino,R.sup.2 is alkyl, cycloalkyl, phenyl or substituted phenyl,R.sup.3 is hydrogen, alkyl, alkenyl or alkynyl andR.sup.4 is hydroxyl, alkoxy, alkythio, amino, alkylamino or dialkylamino,Possess outstanding selective herbicidal properties.
摘要:
New tetrahydrofuran-ether compounds of the formula ##STR1## in which A is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, or substituted phenyl,B.sup.1, b.sup.2, c.sup.1, c.sup.2, d.sup.1 and D.sup.2, which are selected independently of one another, each represent hydrogen, alkyl, haloalkyl, alkoxyalkyl, phenyl, or substituted phenyl,R is aryl or substituted aryl; andX is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, phenyl, or substituted phenyl;Exhibit powerful herbicidal, especially selectively herbicidal, properties and are particularly useful as grass herbicides.
摘要:
Novel herbicides of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is alkyl,X is cyano, alkoxycarbonyl or aminocarbonyl, andY is hydrogen or, if X is cyano, may also be trimethylsilyl,can be prepared by reacting an imidazo-pyrrolo-pyridine of the formula ##STR2## with trimethylsilyl cyanide of the formula(CH.sub.3).sub.3 Si--CN.
摘要:
Novel benzyl ethers of cyclic 1,1-diols, of the formula ##STR1## wherein R.sup.1 is phenyl or substituted phenyl,R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl or --CHX--R.sup.1,X is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, phenyl or substituted phenyl,Y and Y' are individually selected from hydrogen, alkyl, phenyl and substituted phenyl andA is saturated or unsaturated alkylene or substituted alkylene;have been found outstandingly effective as herbicides, particularly as selective herbicides.
摘要:
Novel N-benzyltriazoles of the formula ##SPC1##In whichTriazolyl is 1,2,4 or 1,2,3 triazolyl which may be substituted;X is halogen, trifluoromethyl, lower alkyl, lower alkoxy, lower alkylthio, aryl, nitro, cyano or (alkylated) amino;m is 0, 1 or 2;A is optionally substituted phenyl, pyridyl, alkyl or cycloalkyl; andB is a 5-membered heterocyclic ring, e.g., N-heterocycle;And their salts are outstandingly effective in regulating plant growth, e.g., inhibiting, stimulating or altering plant growth.
摘要:
The invention relates to new N-substituted halogenoacetanilides of the general formula ##STR1## in which R represents an optionally substituted N-containing heterocyclic radical,X and Y which may be identical or different, each represent alkyl,Z represents halogen andn represents 0, 1 or 2,and their acid addition salts and metal salt complexes, to a process for the preparation of the new compounds and to their use as herbicides.
摘要:
The invention relates to new N-substituted halogenoacetanilides of the general formula ##STR1## in which R represents an optionally substituted N-containing heterocyclic radical,X and Y which may be identical or different, each represent alkyl,Z represents halogen andn represents 0, 1 or 2,and their acid addition salts and metal salt complexes, to a process for the preparation of the new compounds and to their use as herbicides.