Substituted thiene-3-yl-sulfonyl amino(thio)carbonyl-triazolin(thi)ones
View Patent ↗The invention relates to novel substituted thien-3-yl-sulphonylamino(thio)carbonyl-triazolin(ethi)ones of the general formula (I) in which Q 1 , Q 2 , R 1 , R 2 , R 3 and R 4 are each as defined in the description, and to salts of the compounds according to formula (I), to processes and to novel intermediates for their preparation and to their use as herbicides.
1. A compound of the formula (I)
wherein
Q 1 represents O,
Q 2 represents O,
R 1 represents —CH 3 ,
R 2 represents —CH 3 ,
R 3 represents —OCH 3 , and
R 4 represents —CH 3 ,
or a salt thereof.
2. A process for preparing a compound according to claim 1 , comprising the step of:
(a) reacting a substituted thiophene-3-sulphonamide of the formula (II)
wherein
R 1 and R 2 are each as defined in claim 1
with a substituted triazolinone of the formula (III)
wherein
Q 1 , Q 2 , R 3 and R 4 are each as defined in claim 1 and
Z represents halogen, alkoxy, aryloxy or arylalkoxy,
optionally in the presence of an acid binder and optionally in the presence of a diluent,
wherein said reaction is carried out at a temperature of about −20° C. and +150° C. under a pressure selected from the group consisting of atmosphereic pressure, elevated pressure and reduced pressure and wherein, optionally, said reaction mixture is stirred for several hours at said temperature and wherein optionally approximately equimolar amounts of said substituted thiophene-3-sulphonamide of the formula (II) and said substituted triazolinone of the formula (III) are reacted in said reaction.
3. A method for controlling undesirable vegetation, comprising the step of allowing an effective amount of one or more compounds according to claim 1 to act on a member selected from the group consisting of an undesirable plant, a habitat of said undesirable plant and combinations thereof.
4. An herbicidal composition comprising one or more compounds according to claim 1 and a member selected from the group consisting of one or more extenders, one or more surfactants, and combinations thereof.
5. The compound of claim 1 wherein said salt of said compound of the formula (I) is selected from the group consisting of a sodium, potassium, magnesium, calcium, ammonium, C 1 -C 4 -alkyl-ammonium, di-(C 1 -C 4 -alkyl)-ammonium, tri-(C 1 -C 4 -alkyl)-ammonium, tetra-(C 1 -C 4 -alkyl)-ammonium, tri-(C 1 -C 4 -alkyl)-sulphonium, C 5 - or C 6 -cycloalkyl-ammonium and di-(C 1 -C 2 -alkyl)-benzylammonium salt of said compound of the formula (I).