Process for the preparation of pure 4-amino-5-halogen-pyridazonen- (6)

Agents to prevent the growth of unwanted plants

Herbicide

Pyridazonic derivatives and herbicide mixture containing these derivatives

Herbicide

Process for the preparation of 4-amino-5-halogeno-6-pyridazones

Process for the production of omega-chloro- and omega-bromotoluenesulfonic acid esters

Process for the preparation of 4-nitro-5-amino pyridazones-6

Products affecting plant growth

Process for the production of 4-nitro-pyrazole-carboxylic acids

Herbicides

Process for the preparation of 2-tetrachloro-2-2-3-3 succinic acid dialdehyde monohydrate, as well as an addition compound

Agents intended to influence plant growth

Herbicides

Process for the preparation of 4-amino-5-hydroxy-6-pyridazones

Herbicide

Pyridazinium compounds and a process for their production

ABSTRACT OF THE DISCLOSURE The present invention relates to new pyridazinium compounds of the general formula (I): (I) where R1 is hydrogen, R2 denotes -NH2, R3 is hydrogen, R4 denotes the radical -SR6, R6 being an alkyl of 1 to 12 carbon atoms, R5 is phenyl and Y.THETA. is an anion of a strong inorganic or organic acid; and their production. Particularly, the above compounds may be used for their circulatory and neuropharmacological effects as well as their analgesic and antiinflammatory effects on animals.

Process for the chlorination of 2-butyne diol-1-4

Process for the production of chlorinated hydrocarbons in the gas phase

4-nitro-5-hydroxypyridazones-(6) and a process for their production

Substituted pyrazoles

ABSTRACT OF THE DISCLOSURE New and valuable substituted pyrazoles, herbicides containing these compounds as active ingredients, and a process for controlling the growth of unwanted plants with these compounds. The substituted pyrazoles have the general formula : (I) where R1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, phenyl, or acyl of the formula :

Process for the production of 3-5-dichloroanthranilic acid or 3-5-dibromoanthranilic acid

Gamma-phenyl gamma-hydroxycrotonlactam prodn - by reaction between gamma-phenyl gamma-halogeno-crotonlactone and ammonia or primary amin

gamma-Phenyl-gamma-hydroxy-crotonlactam of formula : (in which R is H or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical; X is a halogen; and Y is a halogen or an aromatic radical linked with the ring via S atom) is prepd. by the process similar to that described in parent patent, namely by reacting the corresp. gamma-phenyl-gamma-halogenocrotonlactone with NHO or RNH2 at a temp. above +20 degrees C, in partic. up to 90 degrees C, pref. at 30-60 degrees C.

Process for the preparation of pyridazoneimines

Production of 3-aryl-4-halopyridazones-(6)

The invention comprises compounds of formula <FORM:0976955/C1/1> where Ar represents a phenyl or naphthyl radical which may be unsubstituted, or be substituted by one or two identical or different alkyl, alkoxy, acylamino, acyloxy, hydroxy or nitro groups, or halogen atoms, and X represents a halogen atom, which are prepared by reacting hydrazine with an appropriately substituted y-aryl-a -b -dihalo-y-hydroxycrotonic acid or the corresponding y-lactone. The hydrazine is advantageously used in the form of its hydrate, the reaction being carried out in the presence of solvents or diluents. The compounds are valuable intermediates in dye production, and may be used as fungicides or intermediates for fungicides.

Pyridazinium compounds and a process for their production

New pyridazinium compounds which can be used as intermediates and are of interest because of their pharmacological properties, and their production.

Production of chlorstyrenes

Process for the preparation of 6-chloropyridazinium compounds

4-amino-5-hydroxypyridazones-(6)

Substituted pyridazones

Means for influencing plant growth.

Herbicides

Polymeric thiophene-2,3,4,5-tetracarboxylic acid diimides

2-phenyl-4-subst-5-halo-pyrimidines, anti - phlogistics and fungicides

New cpds. are 2-phenyl-4-(amino or hydrazino)-5-(chloro or bromo)-pyrimidines which have antiphlogistic and fungicidal properties and are useful as intermediates for pharmaceuticals. They may be prepd. by the process of parent application no. P1670069.9, by reacting a 2-phenyl-4.5-Br2 or Cl2-pyrimidine with NH3 or N2H4.

Process for the production of bicyclo- [2-2-1] -heptadiene-2-5

Substituted pyridazones and plant-treating compositions containing them

The invention comprises substituted pyridazones of formula <FORM:0929457/IV(a)/1> in which A denotes a hydrogen atom, B denotes a hydroxyl group, or A and B together denote an oxo radical (= o), R denotes a hydrogen atom, a linear or branched alkyl group, a linear or branched halogensubstituted alkyl group, a halogen-substituted phenoxy- or an alkylhalo-phenoxy-alkyl group, an alkenyl group, an aralkyl group, the group <FORM:0929457/IV(a)/2> when A and B together represent an oxo radical, a phenyl group or a halogen-substituted phenyl group, and D denotes a phenyl group or a cycloalkyl group. The compounds can be prepared by reacting aminopyridazones of formula <FORM:0929457/IV(a)/3> with aldehydes, carboxylic acids or carboxylic acid derivatives having the formula RCOX in which R has the meaning given above and X is H, Cl, Br, OH or the group -OCOR. For example, 1-phenyl-4-chloroacetyl-amino-5-chloropyridazone-6 is obtained by treating the corresponding 4-amino compound with chloroacetyl chloride. The 4-amino starting compound may be obtained by reacting the corresponding 4-chloro compound with ammonia in methanol. The compounds of the invention are effective herbicides and can also be used to influence plant growth in other ways (see Groups I and VI). Several compounds are specified, typical examples being:-1-phenyl-4-hydroxy-methylamino-5-chloropyridazone-6, 1-phenyl-4-b ,b , b - trichloroa -hydroxyethylamino- 5-chloropyridazone-6, 1-phenyl- 4-a - chloro-n-butyrylamino-5-chloropyridazone-6, 1-phenyl-4-(21-methyl-41-chlorophenoxy) - acetylamino-5-chloropyridazone-6, N,N1-bis- [1-phenyl-5-chloropyridazone-6-yl-4]-oxalic acid diamide, and 1-cyclooctyl- 4-chloroacetylamino-5-chloropyridazone-6.ALSO:Compositions for influencing plant growth comprise as the active ingredient a substituted pyridazene of formula <FORM:0929457/I/1> in which A denotes a hydrogen atom, B denotes a hydroxyl group, or A and B together denote an oxo radical (= O), R ...

Process for the production of new 4-nitro-5-hydroxy-pyridazonen- (6)

Process for separating water from aqueous solutions of acrylic acid by azeotropic distillation

Production of 1,4,5-trisubstituted pyridazones-(6)

The invention comprises: (1) compounds of general formula <FORM:0999448/C2/1> in which R1, R2, R3 and R4 are hydrogen or alkyl, cycloalkyl, aryl or aralkyl groups which may be substituted by one or more keto, ether, ester or nitrile groups or halogen atoms, or R1 and R4 or R3 and R4 are joined in a cycloalkyl, cycloalkenyl or heterocyclic ring having 4-12 atoms; X and Z are halogens; and Y is a halogen atom or an alkoxy group: (2) the preparation of compounds of above formula wherein each of R1, R2, R3 and R4 is a hydrogen atom or an alkyl, cycloalkyl, aryl or aralkyl group or a heterocyclic radical and which may be substituted or unsubstituted, or R1 and R4 or R3 and R4 are joined in a cycloalkyl, cycloalkenyl or heterocyclic ring, and X, Y and Z are as defined, which comprises reacting a compound of formula <FORM:0999448/C2/2> with a compound of formula R1R2C=CR3R4.

Process for the preparation of nitro-4-pyrazoles

Pyridazinium compounds and a process for their production

ABSTRACT OF THE DISCLOSURE: The present invention relates to new pyridazinium compounds of the general formula (I): (I) where R1 is hydrogen, R2 is an amino group, R3 is hydrogen, R4 is hydrogen, R5 is unsubstituted phenyl or phenyl substituted by chlorine, and Y.THETA. is an anion of a strong inorganic acid; and their production. Particularly, the above compounds may be used for their circulatory and neuropharmacological effects as well as their analgesic and antiinflammatory effects on animals.

Gamma-phenyl, hydroxy-crotonolactams - as intermediates from agamma-phenyl, halo-crotonolactones and primary amines

Cpds. of the general formula (I) as an extension of the prodn. of cpds. (Ia) of DT 1770042 : (where R is H, an aliphatic, cycloaliphatic aromatic or heterocyclic residue; X is halogen; Y is halogen or an S-linked aromatic residue) are inters. for plant-protective agents, CNS-active pharmaceuticals, dyestuffs and polymers for artificial fibres, partic. for paper sie and adhesives. Prepd. from gamma-phenyl-gamma-halo-crotonolactones and ammoni or primary amines at -20 to +20 degrees.

Process for the preparation of (4, 5) -dihalopyridazones- (6)

Process for the production of bicyclo- (2-2-1) -heptadiene-2-5

Means of influence, in particular inhibition of plant growth.

Agents to prevent the growth of unwanted plants

Decahydroquinazoline derivatives and herbicides containing the same

Means for influencing plant growth.

Herbicidal agent

NEW PYRIDAZINONIMINE AND THEIR PHYSIOLOGICALLY COMPATIBLE ACID ADDITION SALTS, METHOD FOR THE PRODUCTION THEREOF AND THERAPEUTIC AGENTS CONTAINING THESE COMPOUNDS

Novel 1-phenyl-4(1H)-pyridazinone-imines of the formula (I) <IMAGE> (I) which are substituted at the imine nitrogen, and their addition salts with a physiologically tolerated acid, processes for their preparation, pharmaceutical formulations containing these compounds, and their use as drugs, in particular as antidepressants, antiparkinson drugs and antihypotonic agents.

Process for producing mucochloric acid

Fungicides for agricultural use

Herbicides

HERBICIDE PREPARATIONS CONTAINING PYRAZOLD DERIVATIVES

Production of cyclo-octa-tetraene

Herbicides

Puridazone derivatives

Production of esters of beta-propionylacrylic acid

Verfahren zur Herstellung von Cyclooctylaminen bzw. ihren Salzen

N eckige Klammer auf 5 Chlorpyndazon (6) yl (4) eckige Klammer zu N methyl formamidinderivate

Herbizide Mischung

Verfahren zur Herstellung von alpha-perchlorierten Aldehyden

Verfahren zur Herstellung von neuen Cyclooctylaminen

Herbizides Mittel

Pyridazone derivatives and their use as herbicides

Verfahren zur Herstellung von a,B-Dihalogenacrylsäuren oder deren Salzen

Herbizid

Pyridazone derivatives and their use as herbicides

Herbizid

Selektives Herbizid

Pyridazone derivatives

Verfahren zur Herstellung von Propionylacrylsäureestern

1-p-fluorphenyl-4-(alpha-hydroxy- beta, beta, beta-trichloraethyl)-amino- 5-chlorpyridazon-6)

Verfahren zur Herstellung von neuen Cyclooctylaminen

Verfahren zur Herstellung von alpha.beta-Dihalogenacrylsäuren oder deren Salze

Verfahren zur Herstellung von alpha-perchlorierten Aldehyden

Verfahren zur Herstellung von alpha-perchlorierten Aldehyden

N eckige Klammer auf 5 Chlorpyridazon (6) yl (4) eckige Klammer zu N methyl formamidmderivate

Agents for the prevention of unwanted vegetation

Agents for controlling unwanted vegetation

Fussschutz.

Herbizid

Pyridazone derivatives

Pyridazone derivatives

Verfahren zur Herstellung von Cyclooktatetraen

Verfahren zur Herstellung von 4,4-Dihalogen-5,5-dihydroxypyridazonen-(6)

Pyridazone derivatives as herbicides

Pyridazone derivatives as herbicides

Verfahren zur Herstellung von alpha,ss-Dihalogenacrylsaeuren oder deren Salze

Verfahren zur Herstellung von alpha,beta-Di-halogenacrylsäuren oder deren Salze. Änm: BASF AG, 6700 Ludwigshafen

Verfahren zur Herstellung von 1,2-Dichloraethylencarbonat

Verfahren zur Herstellung von hoeherhalogenierten polycyclischen Dicarbonsaeuren bzw. deren Estern und Anhydriden

Pyridazone derivatives and herbicides containing same

Pyridazone derivatives and herbicides containing same

Pyridazone derivatives

Pyridazone derivatives

Fungizide Mittel

Pyridazinon-iminer och deras fysiologiskt godtagbara syraadditionssalter, foerfarande foer deras framstaellning och dessa foereningar innehaollande terapeutiska medel

Foerfarande foer framstaellning av terapeutiskt anvaendbara 1-fenyl-4(1h)-pyridazinoniminer och deras fysiologiskt godtagbara syraadditionssalter.

Herbizid