Abstract: A compound that can be converted, at a low cost and in a simple way, into 2-aryl-1,3-propanediols serving as precursors for synthesizing felbamate acting as an antiepileptic has a structure represented by Formula (1): ##STR1## wherein Ar represents an aryl group; R.sup.1 represents a hydrogen atom or is R.sup.4 or R.sup.5, where R.sup.4 represents an alkoxy group having 1 to 10 carbon atoms and R.sup.5 represents a hydroxy group or an acyloxy group having 1 to 10 carbon atoms; and R.sup.2 and R.sup.3 are hydrogen atoms at the same time or R.sup.2 and R.sup.3 together form a group represented by Formula (2): ##STR2## wherein R.sup.6 and R.sup.7 each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or R.sup.6 and R.sup.7 together form an oligomethylene group having 2 to 10 carbon atoms.

Abstract: Novel pesticidal compositions are comprised of a 2,2-dimethyl-3-(substituted ethyl)cyclopropanecarboxylic acid ester as the active ingredient, said cyclopropanecarboxylate having the structural formula: ##STR1## wherein X, Y and Z are the same or different and at least two of same are chlorine or bromine, with the remaining one being hydrogen, methyl, chlorine or bromine; R is an alcohol residue represented by one of the following structural formulae (II), (III), (IV) and (V): ##STR2## where A represents hydrogen, cyano, ethynyl or thiocarbamoyl; Q is hydrogen, chlorine, bromine, fluorine, methyl or trifluoromethyl; R.sup.1 is propargyl or benzyl; R.sup.2 represents 2-halogeno-3-phenyl-1-propen-1-yl, (dihalogenovinyloxy)phenyl, benzylphenyl, phthalimido, thiophthalimido, di- or tetrahydrophthalimido or dialkylmaleimido; R.sup.3 represents allyl, 2,4-pentadienyl, propargyl or benzyl.

Abstract: There are provided novel substituted phenyl (thiono)carbamates capable of effectively controlling broad-leaved annual weeds and annual weeds belonging to the families Gramineae and Cyperaceae such as wild Echinochloa species, monochoria, toothcup and umbrella plant, herbicidal compositions containing these (thiono)carbamates as active ingredient and a method of controlling weeds using these (thiono)carbamates. The (thiono)carbamates are substantially nonphytotoxic to useful crop plants such as the paddy rice plant.

Abstract: There are provided novel substituted phenyl (thiono)carbamates capable of effectively controlling broad-leaved annual weeds and annual weeds belonging to the families Gramineae and Cyperaceae such as wild Echinochloa species, monochoria, toothcup and umbrella plant, herbicidal compositions containing these (thiono)carbamates as active ingredient and a method of controlling weeds using these (thiono)carbamates. The (thiono)carbamates are substantially nonphytotoxic to useful crop plants such as the paddy rice plant.

Abstract: Racemic modifications each consisting of specific isomers of .alpha.-cyano-3-phenoxybenzyl cis- or trans-2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropanecarboxylate with the absolute configurations [.alpha.S, 1R] an [.alpha.R, 1S] with respect to the asymmetric carbon atoms in the alcohol and acid moieties, a method of producing the same and pesticidal compositions containing the same as active ingredient are provided. .alpha.-Cyano-3-phenoxybenzyl cis- or trans-2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropanecarboxylate has higher pesticidal activities than those pesticides that are in general use and consequently selective production of the above specific racemic modification as defined by the combinations of the absolute configuration with respect to the asymmetric carbon atom at the position in the alcohol moiety and the absolute configuration with respect to the asymmetric carbon atom in the acid moiety provides compounds having still higher pesticidal activities.

Abstract: Novel pesticidal compositions are comprised of a 2,2-dimethyl-3-(substituted ethyl)cyclopropanecarboxylic acid ester as the active ingredient, said cyclopropanecarboxylate having the structural formula: ##STR1## wherein X, Y and Z are the same or different and at least two of same are chlorine or bromine, with the remaining one being hyrogen, methyl, chlorine or bromine; R is an alcohol residue represented by one of the following structural formulae (II), (III), (IV) and (V): ##STR2## where A represents hydrogen, cyano, ethynyl or thiocarbamoyl; Q is hydrogen, chlorine, bromine, fluorine, methyl or trifluoromethyl; R.sup.1 is propargyl or benzyl; R.sup.2 represents 2-halogeno-3-phenyl-1-propen-1-yl, (dihalogenovinyloxy)phenyl, benzylphenyl, phthalimido, thiophthalimido, di- or tetrahydrophthalimido or dialkylmaleido; R.sup.3 represents allyl, 2,4-pentadienyl, propargyl or benzyl.

Abstract: Novel substituted propargyl alcohols of the formula: ##STR1## novel allylic alcohols of the formula: ##STR2## and; .delta.,.epsilon.-unsaturated ketones of the formula: ##STR3## are provided. In the above formulas, R represents a group of the formula: ##STR4## wherein X.sub.1 and X.sub.2 are both hydrogen atoms or wherein one of X.sub.1 and X.sub.2 is a hydrogen atom, the other jointly with Z represents a bond; Z jointly with X.sub.1 or X.sub.2 represents a bond or separately represent a hydrogen atom, a hydroxyl group or a lower alkoxy group; R.sub.1 and R.sub.2 are the same or different and represents hydrogen atoms or lower alkyl groups; n is 1 or 2; and when n is 2, X.sub.1, X.sub.2, X, R.sub.1 and R.sub.2 may be the same or different. These novel compounds are easily produced and are useful as perfumes and as interrelated intermediates for the production of terpenoid compounds.

Abstract: Novel substituted propargyl alcohols of the formula: ##STR1## novel allylic alcohols of the formula: ##STR2## .delta.,.epsilon.-unsaturated ketones of the formula: ##STR3## are provided. In the above formulas, R represents a group of the formula: ##STR4## wherein X.sub.1 and X.sub.2 are both hydrogen atoms or wherein one of X.sub.1 and X.sub.2 is a hydrogen atom, the other jointly with Z represents a bond; Z jointly with X.sub.1 or X.sub.2 represents a bond or separately represent a hydrogen atom, a hydroxyl group or a lower alkoxy group; R.sub.1 and R.sub.2 are the same or different and represents hydrogen atoms or lower alkyl groups; n is 1 or 2; and when n is 2, X.sub.1, X.sub.2, X, R.sub.1 and R.sub.2 may be the same or different. These novel compounds are easily produced and are useful as perfumes and as interrelated intermediates for the production of terpenoid compounds.

Abstract: There is disclosed a process for preparing unsaturated ketones especially terpenoid ketones, by subjecting a substituted propargyl alcohol of formula (II) ##STR1## wherein R is a group containing 1 or 2 substituted or unsubstituted alkyl- or alkylene units containing 4 carbon atoms each to a thermal treatment sufficient to rearrange its structure in order to obtain structurally isomeric unsaturated ketones of formula I ##STR2## wherein one of the substituents X.sub.3 and X.sub.4 is hydrogen and the other and Z.sub.2 together form a bond. The process can be effected in the presence of an isomerization catalyst, which leads to high percentage of .alpha...beta.,.gamma...delta.-unsaturated ketones. The ketones of formula I are useful as perfumes and as intermediates for the production of terpenoid compounds.

Abstract: 1,1,1-Trihalogeno-4-methyl pentenes and 1,1-dihalogeno-4-methyl-1,3-pentadienes are produced. These compounds are of value as intermediates for the production of pyrethrin analogs which are of use as insecticides or agricultural chemicals.

Abstract: 2,7,10,15,18,23-Hexamethyltetracosane is a novel compound. This compound is prepared [1] by hydrogenating 2,7,10,15,18,23-hexamethyltetracosa-1,6,18,23-tetraene-11,13-diyne-10,15-d iol [itself a novel compound] or 2,7,10,15,18,23-hexamethyltetracosa-11,13-diyne-10,15-diol, dehydrating the hydrogenated intermediates, and thence hydrogenating the dehydrated precursors, or [2] by selectively, partially hydrogenating the said 10,15-diol compounds and thence hydrogenolyzing the precursor diols, or [3] by hydrogenolyzing the said 10,15-diol compounds, or [4] by hydrogenolyzing the hydrogenated intermediates of the reaction [1]. The compound, 3,6,11-trimethyl-undeca-6,11-dien-1-yl-3-ol, a starting material intermediate, is also a novel compound.

Abstract: Process for producing substituted ketones from the reaction between organic halides and ketones having replaceable active hydrogen atoms on the carbon atom(s) alpha to the carbonyl group, in the presence of an alkali metal hydroxide unitilizing phosphonium salts as the catalyst, which salts have the following formula: ##EQU1## wherein said R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are branched or straight chain alkyl of 1-30 carbon atoms, cycloalkyl of 6-10 carbon atoms, aryl of 6-10 carbon atoms aralkyl or alkaryl wherein the aryl and alkyl are as above defined and X.sup.- is an inorganic or organic anion.

Abstract: A process for producing substituted ketones is disclosed comprising reacting an organic halide with a ketone which has a replaceable hydrogen atom on the carbon atom in the .alpha.-position to the carbonyl group, in the presence of an aqueous alkali metal hydroxide and at least one basic nitrogen catalyst such as certain primary amines, secondary amines, tertiary amines, quaternary ammonium salts or betaine-type quaternary ammonium salts.

Abstract: Novel 2,6,10,15,19,23-hexamethyltetracosa-11,13-diin-10,15-diol derivatives. Such derivatives are prepared by oxydative coupling of 3,7,11-trimethyldodeca-1-in-3-ol derivatives or by ethynylation of 6,10-dimethylundecan-2-on derivatives with diacetylene and used as starting materials for preparing squalane.

Abstract: 1,1,1-Trihalogeno-4-methyl pentenes and 1,1-dihalogeno-4-methyl-1,3-pentadienes are produced. These compounds are of value as intermediates for the production of pyrethrin analogs which are of use as insecticides or agricultural chemicals.