Abstract: The invention relates to a method for producing 2,3-cis-substituted 2-aryl propenals by condensing a 2-aryl acetaldehyde I with a non-enolizable aldehyde compound II in the presence of a base. The inventive method is characterized in that the reaction is carried out in a solvent mixture comprising at least one water-miscible organic solvent and water at a volume ratio Vsolvent:Vwater ranging between 10:1 and 0.5:1.

Abstract: The present invention relates to a process for the preparation of N-substituted 2,6-dialkylmorpholines of the formula I in which R1 and R2, independently of one another, are hydrogen, alkyl or cycloalkyl, or R1 and R2 together with the carbon atom to which they are bonded are a 5- to 14-membered carbocycle, and R3 and R4, independently of one another, are alkyl or cycloalkyl, by reacting at least one carbonyl compound of the formula II in which R1 and R2 have the meanings given above, with at least one morpholine of the formula III in which R3 and R4 have the meanings given above, in the presence of hydrogen and at least one metal-containing catalyst, wherein the active component of the catalyst consists essentially of platinum group metals.

Abstract: Abstract of the Disclosure: Styrene derivatives I ##STR1## where R.sup.1 is H or halogen, R.sup.2 is halogen, R.sup.3 is H, halogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 is CN or C.sub.1 -C.sub.6 -alkylcarbonyl and A is a heterocyclic radical A.sub.1 to A.sub.5 : ##STR2## where R.sup.5 and R.sup.6 are H, CH.sub.3 or C.sub.2 H.sub.5, n is 0 or 1 and X is oxygen or sulfur, with the proviso that R.sup.4 is alkylcarbonyl when R.sup.1 is H and at the same time A is A.sub.2 where n is 0, and agriculturally useful salts thereof, processes for the preparation of the styrene derivatives I and herbicides containing them.

Abstract: N-aryltetrahydrophthalimide compounds of the general formula I ##STR1## where is --S--C(R).sub.2 --, and a method for controlling undesirble plant growth.

Abstract: 3-(3,4,5,6-tetrahydrophthalimido)cinnamic esters I ##STR1## (R.sup.1 =H, halogen; R.sup.2, R.sup.3 =halogen; R.sup.4 =C-organic radical, R.sup.5 =H, CH.sub.3) are prepared by reducing 3-nitrocinnamic esters II ##STR2## with hydrogen in the presence of a catalyst and condensing the resulting 3-aminocinnamic esters III ##STR3## with a 3,4,5,6-tetrahydrophthalic anhydride IV ##STR4## and are valuable active ingredients in crop protection.

Abstract: Cinnamic esters of the formula I ##STR1## where the dotted bond is a single or double bond, R.sup.1 is hydrogen or fluorine, R.sup.2 is halogen, R.sup.3 is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, or is C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl or benzyl, and X is oxygen or sulfur, processes for their manufacture, and agents containing them.

Abstract: 3-(N-3,4,5,6-Tetrahydrophthalimido)-cinnamic esters of the general formula I ##STR1## where n is 1 or 2 and the substituents have the following meanings:R.sup.1 is hydrogen or fluorine,R.sup.2 is halogen,R.sup.3 is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl,R.sup.4 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl or benzyl,R is C.sub.1 -C.sub.4 -alkyl,processes for their manufacture, and herbicidal agents containing them.

Abstract: N-aryltetrahydrophthalimide compounds of the general formula I ##STR1## where n, R.sup.1, Y, R.sup.2 and R.sup.3 have the meanings stated in the claims and description, and a method for controlling undesirable plant growth.

Abstract: N-(Phenyl)-tetrahydroindazole derivatives of the general formula Ia and Ib ##STR1## where R.sup.1 is halogen;R.sup.2 C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl or C.sub.1 -C.sub.3 -alkyl which is substituted in the 1- or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5-or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by rom one to four C.sub.1 -C.sub.4 -alkyls, andR.sup.3 is C.sub.2 -C.sub.7 -alkyl, C.sub.3 -C.sub.6 -C.sub.3 -C.sub.6 -alkynyl, C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl or C.sub.1 -C.sub.3 -alkyl which is substituted in the 1-or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5- or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by from one to four C.sub.1 -C.sub.4 -alkyls,their manufacture and their use.

Abstract: R.sup.1 is C.sub.1 -C.sub.4 -alkyl which may carry from one to five halogen atoms or one of the groups stated for X;R.sup.2 is a heteroaromatic structure bonded via a nitrogen atom, which has a 5-membered ring and contains, in addition to carbon ring members, from one to three nitrogen atoms, andR.sup.3 is halogen, C.sub.1 -C.sub.4 -alkylthio, one of the groups stated for R.sup.2 or phenylthio which in turn may carry from one to three of the following radicals: halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy or C.sub.1 -C.sub.4 -alkylthio, and where the phenylthio group may also carry halogen atoms such that the total number of radicals is 4 or 5,and salts thereof which can be used in agriculture, are suitable as herbicides.

Abstract: Vinylazoles of the general formula I ##STR1## where R.sup.1 and R.sup.2 are alkyl, cycloalkyl, tetrahydropyranyl, pyridyl, naphthyl, biphenyl or phenyl, these radicals being substituted or unsubstituted, X is CH or N, and plant-tolerated acid addition salts and metal complexes thereof, and crop protection agents containing these compounds.

Abstract: N-(Phenyl)-tetrahydroindazole derivatives of the general formula 1a and 1b ##STR1## where R.sup.1 is halogen;R.sup.2 is C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl or C.sub.1 -C.sub.3 -alkyl which is substituted in the 1- or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5- or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by from one to four C.sub.1 -C.sub.4 -alkyls, andR.sup.3 is C.sub.2 -C.sub.7 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl or C.sub.1 -C.sub.3 -alkyl which is substituted in the 1- or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5- or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by from one to four C.sub.1 -C.sub.4 -alkyls, their manufacture and their herbicidal use.

Abstract: Thiadiazabicyclononane derivatives of the formula I ##STR1## (R.sup.1 =H, F; R.sup.2 =halogen; R.sup.3 =H, C.sub.1 -C.sub.4 -alkyl; R.sup.4 =H, C.sub.1 -C.sub.8 -alkoxycarbonyl, C.sub.3 -C.sub.6 -alkenyloxycarbonyl or C.sub.3 -C.sub.5 -alkynyloxycarbonyl, and these 3 groups may additionally bear C.sub.1 -C.sub.4 -alkoxy; X, Y, Z=O,= S; a=C.sub.2 -C.sub.3 -alkylene chain which in addition to R.sup.4 may bear up to 3 identical or different radicals R.sup.5 : OH, COOH, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.6 -alkoxycarbonyl, and the last two radicals may in turn bear up to 5 halogen atoms or one of the following substituents; OH, CN, SH, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkenylthio, C.sub.3 -C.sub.6 -alkynyloxy, C.sub.3 -C.sub.6 -alkynylthio, C.sub.1 -C.sub.6 -alkylcarbonyloxy, C.sub.1 -C.sub.6 -alkoxycarbonyl, C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkylthio).

Abstract: N-phenyltetrahydrophthalimides of the formula I ##STR1## where R.sup.1 is hydrogen or halogen, R.sup.2 is halogen and A is a substituent of the formula ##STR2## where X is oxygen or sulfur, n is zero or one, R.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -14 C.sub.3 -alkyl which is unsubstituted or substituted by halogen, cyano, hydroxyl, mercapto, C.sub.1 -C.sub.6 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkenylthio, C.sub.3 -C.sub.6 -alkynyloxy, C.sub.3 -C.sub.6 -alkynylthio or C.sub.1 -C.sub.4 -acyloxy, or is hydroxyl or carboxyl or is C.sub.1 -C.sub.4 -alkylthio-C.sub.1 - or C.sub.2 -alkyl or C.sub.1 -C.sub.4 -alkoxy-C.sub.1 - or -C.sub.2 -alkyl which is substituted in the alkyl ether or thioehter moiety by C.sub.1 -C.sub.6 -alkoxycarbonyl, R.sup.4 is hydrogen or C.sub.1 -C.sub.3 -alkyl, Z is methyleneoxymethylene, methylenethiomethylene or ethenylene (--CH.dbd.CH--) and R.sup.5 and R.sup.

Abstract: N-aryltetrahydrophthalimide compounds of the general formula I ##STR1## where n, R.sup.1, Y, R.sup.2 and R.sup.3 have the meanings stated in the claims and description, and a method for controlling undesirable plant growth.

Abstract: 5-(N-3,4,5,6-Tetrahydrophthalimido)-cinnamic acid derivatives of the formula Ib ##STR1## where the substituents have the following meanings: Y is chlorine, bromine or C.sub.1 -C.sub.4 -alkyl;R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, substituted or unsubstituted C.sub.2 -C.sub.4 alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, or substituted or unsubstituted phenyl or benzyl,R.sup.2 is C.sub.5 -C.sub.8 -alkyl, substituted or unsubstituted C.sub.2 -C.sub.4 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkynyl, C.sub.3 -C.sub.6 -alkynyloxy, or substituted or unsubstituted phenyl, phenoxy, benzyl or benzyloxy,R.sub.3 C.sub.1 -C.sub.6 -alkyl, or substituted or unsubstituted C.sub.2 -C.sub.6 -alkyl,methods of manufacturing these compounds, and their use as herbicides.

Abstract: N-(Phenyl)-tetrahydroindazole derivatives of the general formula Ia and Ib ##STR1## where R.sup.1 is halogen;R.sup.2 is C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl or C.sub.1 -C.sub.3 -alkyl which is substituted in the 1- or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5- or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by from one to four C.sub.1 -C.sub.4 -alkyls, andR.sup.3 is C.sub.2 -C.sub.7 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, C.sub.1 -C.sub.6 -alkoxycarbonyl-C.sub.3 -C.sub.5 -alkenyl of C.sub.1 -C.sub.3 -alkyl which is substituted in the 1- or 2-position by C.sub.1 -C.sub.6 -alkoxycarbonyl or a 5- or 6-membered saturated or monounsaturated heterocycle which contains one oxygen or sulfur as heteroatom and can be substituted by from one to four C.sub.1 -C.sub.4 -alkyls,their manufacture and their use.

Abstract: R.sup.2 is halogen,R.sup.3 is hydrogen, halogen or a C.sub.1 -C.sub.4 -alkyl,R.sup.4, R.sup.5 are hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.4 -alkyl which carries a hydroxyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkylthio radical, C.sub.1 -C.sub.6 -alkoxy, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, C.sub.3 -C.sub.6 -alkenyloxy and/or C.sub.3 -C.sub.6 -alkynyloxy, or together with the nitorgen atom form a 5- or 6-membered aliphatic ring in which a methylene group may be replaced by an oxygen atom, andR.sup.6 is hydrogen, C.sub.1 -C.sub.6 -alkyl which is unsubstituted or substituted by one or two C.sub.1 -C.sub.4 -alkoxy groups, or is C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl or benzyl,processes for their manufacture, and their herbicidal use.

Abstract: N-aryltetrahydrophthalimide compounds of the general formula I ##STR1## where R.sup.1 is hydrogen or halogen, R.sup.2 is halogen, A is substituted or unsubstituted C.sub.2 -C.sub.4 -alkylene or C.sub.2 -C.sub.4 -alkenylene, B is oxygen, sulfur or a group NR.sup.3, where R.sup.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.3 -C.sub.6 -alkynyl, and methods of controlling unwanted plant growth and of influencing plant growth.

Abstract: 3-(3,4,5,6-Tetrahydrophthalimido)-benzaldehydes of the type I ##STR1## or corresponding derivatives substituted in the phenyl ring are prepared by(a) acetalization of a 3-nitrobenzaldehyde III or of a corresponding derivative with an alcohol IV in the presence of an acidic catalyst to give the corresponding cyclic acetal V ##STR2## (b) reduction of the cyclic acetal V with hydrogen to give the corresponding amino compound II and(c) subsequent condensation of this aminophenyl acetal II with 3,4,5,6-tetrahydrophthalic anhydride in an acidic reaction medium.