Abstract: Pyridine-N-oxide-substituted salicylaldehyde and salicylic acid derivatives of the general formula I ##STR1## where R is a formyl group, a CO.sub.2 H group or a radical which can be hydrolyzed to CO.sub.2 H and the other substituents have the following meanings:R.sup.2 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio;X is nitrogen or CR.sup.13, R.sup.13 being hydrogen or halogen or together with R.sup.3 forming a 3- to 4-membered alkylene or alkenylene chain in which at least one methylene group is replaced by oxygen;R.sup.3 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio, or R.sup.3 is linked with R.sup.13 as indicated above to give a 5- or 6-membered ring;Y is oxygen or sulfur;R.sup.14 -R.sup.

Abstract: Cyclic acetals of the formula I ##STR1## where the substituents have the following meanings: R.sup.1 and R.sup.2 are hydrogen, unsubstituted or substituted alkyl or phenyl; additionally R.sup.1 and R.sup.2 together are an unsubstituted or substituted C.sub.2 -C.sub.6 -alkylene chain;Y is oxygen or sulfur;A has the meaning as given in claim 1;a process for preparing the acetals I and their use for the production of crop protection compositions are described.

Abstract: Sulfones of the formula III ##STR1## where R.sup.2 and R.sup.13 are as defined in the specification. The sulfones are used as intermediates in preparing salicylaldehydes and salicylic acid derivatives and sulfur analogs thereof.

Abstract: Salicylic acid derivatives of the formula I ##STR1## (R.sup.1 is succinimidoxy; unsubstituted or substituted hetaryl; OR.sup.5 where R.sup.5 is substituted or unsubstituted cycloalkyl, alkyl, alkenyl, alkynyl, phenyl or substituted methyleneamino; OR.sup.8 where R.sup.8 is hydrogen, alkali metal or alkaline earth metal cation, ammonium or organic ammonium;R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.2 -haloalkoxy and/or C.sub.1 -C.sub.4 -alkylthio;R.sup.4 is ethynyl or unsubstituted or substituted vinyl;X is oxygen or sulfur;Z is nitrogen or methine)are used as herbicides and bioregulators.

Abstract: Glycol aldehyde and lactic acid derivatives and their sulfur analogs of the formula I ##STR1## where R.sup.1 to R.sup.3 have the meanings given in the specification, X is oxygen, sulfur or a single bond, and Y is a C.sub.2 -C.sub.4 -alkylene or C.sub.2 -C.sub.4 -alkenylene chain where in each case a methylene group may be substituted by an oxo group (.dbd.O), environmentally compatible salts of the compounds I, methods of preparing the compounds I, and their use as herbicides.

Abstract: Thiocarboxylic acid derivatives useful as herbicides or plant growth regulators are of the general formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, unsubstituted or substituted cycloalkyl or cycloalkenyl, unsubstituted or substituted alkenyl or alkynyl or unsubstituted or substituted phenyl;R.sup.2 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio;X is nitrogen or CR.sup.6, where R.sup.6 is hydrogen or, together with R.sup.3, forms a C.sub.3 - or C.sub.4 -alkylene chain or C.sub.3 - or C.sub.4 -alkenylene chain in which a methylene group is replaced with oxygen;R.sup.3 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio or R.sup.3 is bonded to R.sup.6 as stated above to give a 5-membered or 6-membered ring;R.sup.

Abstract: Salicylaldehyde and salicylic acid derivatives and sulfur analogs thereof of the formula I ##STR1## where X is oxygen or sulfur and Y is carbon or nitrogen, and the radicals R.sup.1 to R.sup.4 have the meanings given in the disclosure, and processes and intermediates for manufacturing compounds I.

Abstract: Salicylic acid derivatives and sulfur analogs thereof of the formula I, ##STR1## wherein the substituents are herein below defined.

Abstract: Salicyloyl(thio)ether derivatives of the formula I, ##STR1## where is oxygen or sulfur and Z is carbon or nitrogen, and the radicals R.sup.1 to R.sup.4 and A have the meanings given in the disclosure, and processes and intermediates for preparing compounds I.

Abstract: Salicylic acid derivatives of the formula I ##STR1## (R.sup.1 is succinimidoxy; unsubstituted or substituted hetaryl; OR.sup.5 where R.sup.5 is substituted or unsubstituted cycloalkyl, alkyl, alkenyl, alkynyl, phenyl or substituted methyleneamino; OR.sup.8 where R.sup.8 is hydrogen, alkali metal or alkaline earth metal cation, ammonium or organic ammonium;R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.2 -haloalkoxy and/or C.sub.1 -C.sub.4 -alkylthio;R.sup.4 is ethynyl or unsubstituted or substituted vinyl;X is oxygen or sulfur;Z is nitrogen or methine)are used as herbicides and bioregulators.

Abstract: Salicylaldehyde derivatives and salicylic acid derivatives of the formula I ##STR1## where A is an unsubstituted or substituted phenyl radical, an unsubstituted or substituted 5-membered heteroaromatic radical having from 2 to 4 nitrogen atoms or two nitrogen atoms and additionally one sulfur or oxygen atom or an unsubstituted or substituted thienyl, pyridyl, naphthyl, quinolyl, indazolyl or benzotriazolyl radical, X is oxygen or sulfur, and the radicals R.sup.1 to R.sup.4 have the meanings given in the specification, processes and intermediates for their production, and their use as herbicides and bioregulators.

Abstract: Salicylic acid derivatives of the formula I ##STR1## where A is unsubstituted or substituted phenyl, an unsubstituted or substituted five-membered heteroaromatic structure having from two to four nitrogen atoms or having two nitrogen atoms and in addition a sulfur or oxygen atom, or unsubstituted or substituted naphthyl, n is 0, 1 or 2, X and Y are each nitrogen or a methine group and R.sup.1 to R.sup.4 have the meanings stated in the description, processes and intermediates for their preparation, and their use as herbicides and bioregulators.

Abstract: Salicylaldehyde derivatives and salicyclic acid derivatives of the formula I ##STR1## where A is an unsubstituted or substituted phenyl radical, an unsubstituted or substituted 5-membered heteroaromatic radical having from 2 to 4 nitrogen atoms or two nitrogen atoms and additionally one sulfur or oxygen atom or an unsubstituted or substituted thienyl, pyridyl, naphthyl, quinolyl, indazolyl or benzotriazolyl radical, X is oxygen or sulfur, and the radicals R.sup.1 and R.sup.4 have the means given in the specification, processes and intermediates for their production, and their use as herbicides and bioregulators.

Abstract: Carboxylic acid derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each 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 and/or C.sub.1 -C.sub.4 -alkylthio;R.sup.3 is hydrogen, hydroxyl, cyano, nitro, formyl, halogen, unsubstituted or substituted amino, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkynyl or C.sub.3 -C.sub.6 -alkynyloxy;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl;R.sup.5 is unsubstituted or substituted five-membered hetaryl or isoxazolinyl or --CR.sup.6 .dbd.NOR.sup.7 ;R.sup.6 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl or phenyl;R.sup.7 is unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.8 -cycloalkyl or phenyl;A is oxygen or sulfur;X is nitrogen or methine .dbd.CR.sup.8 --;R.sup.8 is one of the radicals R.sup.3, or R.sup.