Abstract: A compound having the structural formula ##STR1## wherein: Y is selected from O and S;R.sub.1 and R.sub.4 are independently selected from fluorinated methyl, chlorofluorinated methyl, and C.sub.1 -C.sub.4 alkyl, provided that not both R.sub.1 and R.sub.4 may be C.sub.1 -C.sub.4 alkyl;R.sub.2 is selected from hydrogen, lower alkyl, haloalkyl, alkenyl, alkynyl, haloalkenyl, and a cation;R.sub.3 is selected from C.sub.1 -C.sub.5 alkyl, cycloalkyl, cycloalkylalkyl, hydroxy, and alkoxy; andX is selected from ##STR2## in which R.sub.8 is selected from H, alkyl and CF.sub.3 and R.sub.10 is selected from F, Cl, --OR.sup.1, --SR.sup.1, --NHR.sup.1, --N(R.sup.1).sub.2, phenyl, substituted phenyl, and --P(OR.sup.1).sub.2where R.sup.1 is as defined above; ##STR3## wherein R.sup.1 is as defined above; ##STR4## wherein R.sub.14 and R.sub.15 are independently selected from hydrogen and alkyl; and --N.dbd.C.dbd.O and their use as herbicides.

Abstract: The invention relates to a method of preparing technetium chelate of the general formula ##STR1## wherein x is a sulphur atom or an imino group,Z is a hydrogen atom, a carboxy group, an alkoxycarbonyl group having 1-4 carbon atoms, an aminocarbonyl group, a sulpho group, an aminosulphonyl group or a carboxymethylaminocarbonyl group,Tc represents technetium-99m,R.sub.1 is a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, andR.sub.2, R.sub.4 and R.sub.5 are equal or different and represent hydrogen atoms or branched or non-branched alkyl groups having 1-4 carbon atoms, which alkyl groups are optionally substituted with an amino group, a hydroxy group, a mercapto group, a halogen atom, a carboxy group or an aminocarbonyl group,with the proviso that R.sub.3, R.sub.4 and R.sub.5 do not all three of them represent hydrogen atoms;as well as water-soluble salts of these compounds.

Abstract: Substituted pyridines having at the 3 or 5 position a carbonyl oxy(thio)ester or a heterocyclocarbonyl and at the other a substituted alkyl group, herbicidal compositions and methods of use thereof.

Abstract: A method of inducing male sterility in a dicotyledonous plant which comprises treating the plant prior to, during or post meiosis with an amount of a substituted 4-oxo-1-phenyl-1,4-dihydropyridazine, which is effective to produce male sterility in the plant.

Abstract: Described herein is a process for dehydration of substituted piperidine dicarbothioate compounds and a novel compound obtained thereby.

Abstract: Fully substituted pyridines having a cyclic alkylidene substituent, useful as herbicides, compositions and methods of use thereof.

Abstract: Processes for production of 2,6-substituted-3,5-pyridinedicarboxylic acids, esters, salts, amides, halides, and cyano compounds, useful as herbicides and as intermediates which provide herbicides.

Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 2- or 6-position with an OR.sub.2 moiety where R.sub.2 is hydrogen, lower alkyl, halomethyl, lower cyanoalkyl, alkenyl or alkynyl, as well as herbicidal compositions and herbicidal use of these compounds.

Abstract: Substituted pyridines characterized by having been substituted in the 3-position with an isoxazolyl or isothiazolyl radical. A method of using such pyridines as herbicides and herbicidal compositions containing such pyridines are described. Methods of preparing such substituted pyridines are also disclosed.

Abstract: A process for dehydration of a 4-(lower alkyl)-2,6-bis(trifluoromethyl)-2,6-bis(hydroxy)-piperidine-3,5-dicarboxyl ic acid thioesters and esters.

Abstract: 2- or 6-fluoromethyl-3-pyridinecarboxylate derivatives with 5-(haloalkyl) carboxamide or 5-(haloalkyl)carbamate substitution, useful as herbicides and herbicide intermediates.

Abstract: Hemiketals and hemithioketals are produced by bringing into reactive contact an alcohol or mercaptan and an oxetan-2-one compound having the following structural formula: ##STR1## where Hal is a halogen.

Abstract: Disclosed herein is a process for cyclizing pyridinecarboxylate derivatives with 5-(haloalkyl) carboxamide or 5(haloalkyl)carbamate substitutions to prepare compounds useful as herbicides.

Abstract: Described herein is a process for preparation of substituted pyridine dicarboxylate compounds.

Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 3- and/or 5-position with a carboxylic acid-derived heterocyclic moiety, as well as herbicidal compositions and use of these compounds.

Abstract: A process for dehydrofluorination of a 2,6-(bis)trifluoromethyl-dihydropyridine-3,5-dicarbothioic acid ester.

Abstract: A process for dehydrofluorination of a 2,6-(bis) trifluoromethyl-dihydropyridine-3,5-dicarbothioic acid ester.

Abstract: Novel 3-difluoromethyl-1-methyl-N-(substituted-indane-4-yl)pyrazole-4-carboxamid es useful as fungicides, particularly effective in alleviating infections in diseased plants.

Abstract: A process for producing an aromatic thiolester by mixing an alkyl or aryl thiol with an alkali metal hydroxide aqueous solution and, in the presence of a phase transfer catalyst, reacting it with an aromatic acid halide. Diacid halides may be used to produce bisthiol esters.

Abstract: This invention relates to 1-aryl-1,4-dihydro-4-oxo-5-carboxypyridazine derivatives which are not only useful as plant growth regulators and hybridizing agents for cereal crops but possess the additional utility of having an improved margin of safety as concerns plant injury and seed quality.