METHOD OF CONTROLLING THE GROWTH OF GRAIN CROPS

1. Claims for the contracting States : BE, CH, FR, GB, IT, LI, NL, SE A 1-substituted imidazole-5-carboxylic acid derivative of the formula (I) see diagramm : EP0137868,P21,F2 in which X is O, S or N, R**1 denotes hydrogen, phenyl, C2- to C6-alkenyl or C1- to C12 -alkyl, it being possible for the la...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KLAUS BAUER,DE, KHERMANN BIRINGER,DE, TOMAS MAJER,DE, KHELMUT BYURSTEL,DE, BURKKHARD ZAKSE,DE, ROLAND SHMIRER,DE
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY FISHING FORESTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	1. Claims for the contracting States : BE, CH, FR, GB, IT, LI, NL, SE A 1-substituted imidazole-5-carboxylic acid derivative of the formula (I) see diagramm : EP0137868,P21,F2 in which X is O, S or N, R1 denotes hydrogen, phenyl, C2- to C6-alkenyl or C1- to C12 -alkyl, it being possible for the latter to be substituted up to three C1- to C6 -alkoxy groups or C1- to C3 -dialkylamino groups or by halogen, and, if X = N, two identical or different radicals R1 are attached to N, or, if X = O or S, R1 also represents a metal cation of groups I, II or VII of the periodic system or ammonium, and R2 denotes a radical of the formula (II) see diagramm : EP0137868,P21,F3 in which R3 and R4 independently of one another represents a C1- to C4 -alkyl group, and the R5 s denote identical or different radicals belonging to the group comprising H, C1- to C4 -alkyl, C1- to C4 -alkoxy and halogen. 1. Claims for the contracting state : AT A process for preparing compounds of the formula (I) see diagramm : EP0137868,P23,F1 in which X is O, S or N, R1 denotes hydrogen, phenyl, C2- to C6-alkenyl or C1- to C12 -alkyl, it being possible for the latter to be substituted up to three C1- to C6 -alkoxy groups or C1- to C3 -dialkylamino groups or by halogen, and, if X = N, two identical or different radicals R1 are attached to N, or, if X = O or S, R1 also represents a metal cation of groups I, II or VII of the periodic system or ammonium, and R2 denotes a radical of the formula (II) see diagramm : EP0137868,P23,F2 in which R3 and R4 independently of one another represents a C1- to C4 -alkyl group, and the R5 denote identical or different radicals belonging to the group comprising H, C1- to C4 -alkyl, C1- to C4 -alkoxy and halogen, starting from bisformyl esters or the enol form thereof of the formulae (V) or (Va), respectively, see diagramm : EP0137868,P23,F3 see diagramm : EP0137868,P23,F4 in which R2 represents the radicals mentioned above and R7 represents one of the radicals R**1 defined above, preferably methyl or ethyl and especially ethyl, but not H, a metal or ammonium, which comprises either a) reacting the bisformyl esters with a carboxamide containing 1 to 3 carbon atoms, advantageously in the presence of strong acids at temperatures of 50 to 250 degrees C ; or b) reacting the bisformyl esters with a 5-fold to 30-fold molar excess of ammonium acetate in a 5-molar to 50-molar amount of glacial acetic acid at temperatures of 50 to 180 degrees C