摘要:
The present invention describes a process for preparing isoxazoles of the formula I where: R1 is hydrogen, C1-C6-alkyl, R2 is hydrogen, C1-C6-alkyl, R3, R4, R5 are each hydrogen, C1-C6-alkyl or R4 and R5 together from a bond, R6 is a heterocysclic ring, n is 0, 1 or 2; which comprises preparing an intermediate of the formula VI where R1, R3, R4 and R5 are each as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Furthermore, the invention describes novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates.
摘要:
A process for preparing 4-bromoaniline derivatives of the formula I where: R1 is C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C8-cycloalkyl, halogen R2 is C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl, C2-C6-alkenyl, cyano or a heterocyclic radical is described.
摘要:
The present invention relates to compounds of the formula (I) wherein R1 and R2 independently of one another are hydrogen, C1-C10-alkyl, C1-C10-haloalkyl, C3-C10-cycloalkyl, C3-C10-halocycloalkyl, C2-C10-alkenyl, C2-C10-haloalkenyl or together represent an aliphatic chain, or the like; R3 is halogen, cyano, C1-C8-alkyl, C1-C8-haloalkyl, C3-C8-cycloalkyl, C3-C8-halocycloalkyl, C2-C8-alkenyl, C2-C8-haloalkenyl, C1-C8-alkoxy, phenyl, or the like; R4 is hydrogen, C1-C10-alkyl, C1-C10-haloalkyl, C3-C8-cycloalkyl, C3-C8-halocycloalkyl, C2-C10-alkenyl, C2-C10-haloalkenyl, phenyl, or the like; t is 0 or 1; p is 0, 1, 2, 3 or 4. The present invention also relates to a process for preparing a compound of the formula (I) which comprises reacting a compound of the formula II with a compound of the formulae III or IV: where t, p, R1 R3, R3 and R4 are as defined in any of claims 1 to 6 and where A− is an equivalent of an anion having a pKB of at least 10 (determined under standard conditions in water).
摘要:
The present invention provides substituted pyrazine compounds of the formula I or N-oxides or agriculturally suitable salts thereof, wherein the variables in the formula I are defined as in the description. Substituted pyrazines of formula I are useful as herbicides.
摘要:
N-Thio-anthranilamid compounds of formula (I) wherein A is a group selected from A1 and A2 wherein the variables and the indices are as defined per the description, processes for preparing the compounds I, pesticidal compositions comprising compounds I, use of compounds I for the control of insects, acarids or nematodes, and methods for treating, controlling, preventing or protecting animals against infestation or infection by parasites by use of compounds of formula I.
摘要:
The present invention relates to a process for preparing fluoromethyl-substituted heterocyclic compounds of the general formula (I) in which R1 is H or F; R2 is an -[A-O]m—R3 group in which A is C2-C4-alkanediyl, R3 is C1-C4-alkyl and m is 1 or 2; by converting the corresponding chloromethyl-substituted compounds (II) in the presence of fluorinating agents, to processes for preparing the chloromethyl-substituted compounds (II), to processes for preparing amides of the general formula (IV) and to compounds of the general formulae (I) and (II).
摘要:
A process for preparing piperazinedione derivatives of the formula I in which R1 is hydrogen, alkyl, alkenyl, alkynyl and alkylcarbonyl, R2 is hydrogen, alkyl, alkenyl, C3-C4-alkynyl and C(═O)R11, R3, R4 are each hydrogen, alkyl and haloalkyl, where the groups may be substituted, which comprises reacting amines of the formula II H2N—R1 II in which R1 is hydrogen and alkyl which may optionally be substituted with N-acylated amino acid derivatives of the formula III in which X is halogen, Y is halogen, alkoxy or phenyloxy which may be substituted and R2, R3 and R4 are each as defined at the outset, under basic conditions in an aqueous solvent.
摘要:
α-Cyanoacrylates of the formula I, where: R1 is ORa wherein Ra is hydrogen, substituted alkyl, branched alkyl, branched alkenyl, cycloloalkyl, heterocyclyl, aryl, phenylalkyl or alkylimino; is NRbRc wherein Rb is hydrogen, alkyl which may be substituted, alkenyl, alkynyl; Rc is hydrogen, alkyl which may be substituted alkenyl, alkynyl, cycloalkyl, heterocyclyl, aryl, phenylalkyl or alkylimino; or Rb and Rc form an alkandiyl-chain which may be substituted; or is SRd wherein Rd is hydrogen, alkyl which may be substituted, alkenyl, alkynyl, cycloalkyl, heterocyclyl, aryl, phenylalkyl or alkylimino; R2 is alkyl which may be substituted; is alkenyl or alkynyl; R3 is alkyl may be substituted; is alkenyl or alkynyl; R4 is hydrogen, halogen, cyano or alkyl; and their agriculturally useful salts, processes and intermediates for their preparation; and the use of these compounds or of compositions comprising these compounds for controlling undesirable plants are described.
摘要:
The present invention relates to a process for preparing N-substituted (3-dihalomethylpyrazol-4-yl)carboxamides of the formula (I) in which R1 is optionally substituted phenyl or C3-C7-cycloalkyl, R1a is hydrogen or fluorine, or R1a together with R1 is optionally substituted C3-C5-alkanediyl or C5-C7-cycloalkanediyl, R2 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl or C1-C4-alkoxy-C1-C2-alkyl, X is F or Cl and n is 0, 1, 2 or 3; which comprises A) providing a compound of the formula (II) in which X is F or Cl, Y is Cl or Br and R2 has one of the meanings given above and B) reacting a compound of the formula (II) with carbon monoxide and a compound of the formula (III) in which R1, R1a and n have one of the meanings given above; in the presence of a palladium catalyst; to intermediates used for the preparation according to the process according to the invention, and also to processes for their preparation.
摘要:
The present invention relates to piperazine compounds of the general formula I defined below and to their use as herbicides. Moreover, the invention relates to compositions for crop protection and to a method for controlling unwanted vegetation. In formula I, A1, A2 independently of one another are aryl or heteroaryl, where Ra is attached in the ortho-position to the point of attachment of A1 to a carbon atom or a nitrogen atom of A1, Y1, Y2 are oxygen, sulfur or a group NRy1, and the variables Ra, Rb, Rc, Rd, Re, Rf, R1, R2, R3, R4, R5, R6, R7, and R8 have the meanings mentioned in the claims and the description.