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: Pyrimidine derivatives of the Formula Ia or Ib ##STR1## where the substituents have the following meanings: R.sup.1 is hydrogen or alkyl;A is a substituted or unsubstituted bi- or tricyclic carbo- or heterocyclic radical which may contain one or several double bonds;R.sup.5 is H or alkyl;X is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio; and addition salts thereof with organic or inorganic acids and the use of said pyrimidine derivative to control undesirable plant growth.

Abstract: There are provided novel (2-imidazolin-2-yl) fused heteropyridine compounds, and intermediate compounds for the preparation thereof, and a method for controlling a wide variety of annual and perennial plant species therewith.

Abstract: Disclosed are novel adenine derivatives represented by the formula I and agriculturally acceptable acid addition salts thereof represented by the formula: ##STR1## wherein n is an integer of 2-4. Compositions for increasing yield of crops such as leguminous crops and gramineous crops which contain the above adenine derivatives or salts thereof as an active ingredient and methods for increasing yield of crops using these compositions are also disclosed.

Abstract: N-Phenyl-triazolopyrimidinyl-sulfonamides of formula I ##STR1## wherein R.sub.1 is halogen, phenyl, O-phenyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, --OR.sub.8, --OR.sub.9, nitro, hydroxy, cyano, --SR.sub.6, --SOR.sub.6, --SO.sub.2 R.sub.6, --SR.sub.8, --SOR.sub.8, --SO.sub.2 R.sub.8, --SO.sub.3 R.sub.8, --SR.sub.9, --SOR.sub.9, --SO.sub.2 R.sub.9, --SO.sub.2 NR.sub.10 (R.sub.10), --SO.sub.3 R.sub.9, --COOR.sub.7, --CONHR.sub.9, --CONR.sub.9 (R.sub.9), formyl, ##STR2## --NH.sub.2, --NHR.sub.9 or --NR.sub.9 (R.sub.9); R.sub.2 and R.sub.4 independently of one another are hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, --COOR.sub.7 or --OR.sub.9 ;R.sub.3 is hydrogen or halogen;R.sub.5 is hydrogen, halogen, phenyl, O-phenyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, --OR.sub.8, --OR.sub.9, nitro, hydroxy, cyano, --SR.sub.6, --SOR.sub.6, --SO.sub.2 R.sub.6, --SR.sub.8, --SOR.sub.8, --SO.sub.3 R.sub.8, --SR.sub.9, --SOR.sub.9, --SO.sub.2 R.sub.9, --SO.sub.2 NR.sub.10 (R.sub.10), --SO.sub.3 R.sub.

Abstract: A method for the treatment of a harvested plant part with L(+) adenosine or 1-triacontanol to improve the quality of the parts, such as fruit, vegetables (including root vegetables) and leaves. The method includes applying the L(+) adenosine or 1-triacontanol to the part of the plant after harvest of the fruit or vegetable. The acidity or sugar content of the plant part and thus the sugar to acid ratio is particularly affected by the treatment.

Abstract: A denine derivatives represented by the following formula: ##STR1## (wherein n is 1 or 2 and R and R' represent hydrogen or a methyl, ethyl, allyl, or propargyl group) and agriculturally acceptable acid addition salts thereof, which have cytokinin activity and besides, excellent rooting action, is applied to as plant growth regulators.

Abstract: N-(3-, 4-, and 5-)-pyrazolyl-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamide compounds, substituted on the pyrimidine ring with an alkoxy group and on the pyrazine ring, such as N-(4-bromo-1-methylpyrazol-3-yl)-7-chloro-5-methoxy-1,2,4-triazolo[1,5-c]p yrimidine-2-sulfonamide, were prepared from alkoxy substituted 1,2,4-triazolo[1,5-c]-pyrimidine-2-sulfonyl halides by condensation with substituted (3-, 4-, and 5-aminopyrazoles in the presence of a pyridine base and a catalytic amount of dimethyl sulfoxide. The compounds were found to possess general and, in some cases, selective pre- and postemergence herbicidal activity.

Abstract: A method of desiccating plants, which method involves the application of a desiccatingly effective amount of certain 3-carbonylphenyl uracil compounds to the locus of the plants to be treated. Such application will act as a harvest aid for field crops.

Abstract: Reactions between a solid polar and a non-polar compound, especially nucleophilic aromatic substitution reactions between an alkali metal salt of a hydroxyaromatic compound or thio analog thereof and an activated halo- or nitro-substituted aromatic compound, are conducted in a non-polar organic solvent such as toluene or xylene, in the presence of a hexaalkylguanidinium or .alpha.,.omega.-bis(pentaalkylguanidinium)alkane salt, or a corresponding heterocyclic salt, as a phase transfer catalyst. The method is particularly useful for the preparation of bisimides from bisphenol A or 4,4'-biphenol salts and 4-nitro- or 4-halophthalimides.