Abstract: Terpene peroxides of formula: ##STR1## in which R denotes a tertiary alkyl radical substituted, if desired, by one or more phenyl radicals, a cycloalkyl radical or a trialkylsilyl radical, R.sub.1, R.sub.2 and R.sub.3, which are identical or different, each denote hydrogen or an aliphatic radical optionally containing one or more double or triple bonds and optionally substituted, and R.sub.4 denotes an aliphatic radical optionally containing one or more double or triple bonds and optionally substituted or R.sub.3 denotes hydrogen and R.sub.2 and R.sub.4 together form an alkylene radical which may be substituted by one or more methyl radicals, are obtained by reaction of a hydroperoxide of formula R--OOH with a compound of formula: ##STR2## the operation being carried out in a basic aprotic solvent.

Abstract: A process for production of neopentyl glycol by hydrogenation of hydroxypivaldehyde in the presence of a Pt-Ru-W catalyst. This catalyst exhibits high activity and selectivity, and further has a long life. Neopentyl glycol is an important intermediate for use in production of a wide variety of chemicals.

Abstract: Dien-1-ols of the general formula I ##STR1## where the radicals R.sup.1 to R.sup.7 are identical to or different from one another and each is hydrogen or straight-chain or branched alkyl or 1-12 carbon atoms and n is 1-14, are prepared by dehydrating a hydroxylalkenyl tert-butyl ether of the formula II ##STR2## in the presence of an acidic catalyst at elevated tempertures and essentially at the same time splitting off the tert-butyl protective group, as is 9-hydroxydodec-10-enyl 1-tert-butyl ether which is useful as an intermediate for synthesizing 8,10-dodecadienol.

Abstract: Crude nitrobenzaldehyde can be substantially purified from the undesired positional isomers if a treatment with 100-10,000% by weight of water and 1-30% by weight of an emulsifier, all with reference to the dry weight of the crude nitrobenzaldehyde, is undertaken at a temperature of 30.degree.-140.degree. C. and at a pH of 3-14.

Abstract: Novel N-phenyl-N-carboxythioureas of the formula I ##STR1## in which R.sub.1 and R.sub.2 each represents C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.7 cycloalkyl or C.sub.5 -C.sub.6 cycloalkenyl,R.sub.3 represents hydrogen, halogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxy or C.sub.1 -C.sub.10 alkylthio,R.sub.4 represents C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl or phenyl-C.sub.1 -C.sub.7 alkyl; C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl or phenyl-C.sub.1 -C.sub.7 alkyl each mono- or poly-substituted by halogen or interrupted one or several times by oxygen and/or sulphur; C.sub.3 -C.sub.8 cycloalkyl; or C.sub.3 -C.sub.8 cycloalkyl mono- or poly-substituted by halogen or by C.sub.1 -C.sub.5 alkyl, andR.sub.5 represents C.sub.1 -C.sub.10 alkyl; phenyl-C.sub.1 -C.sub.7 alkyl; C.sub.1 -C.sub.10 alkyl or phenyl-C.sub.1 -C.sub.7 alkyl each mono- or poly-substituted by halogen or interrupted one or several times by oxygen and/or sulphur; C.

Abstract: Novel hydroxyalkylcysteine derivatives of the following formula (I) and an expectorant comprising the same are disclosed. ##STR1## wherein n represents an integer of 5 to 24. The expectorant is stabile, has little side effects and toxicity, and exhibits an excellent expectorant effect.

Abstract: Described herein are novel monomers, polyketals derived from such monomer, improved process for the production of such monomers and a process for producing the polyketals.

Abstract: Novel insecticides have the formula ##STR1## in which R.sub.1 is hydrogen, fluoro or trifluoromethyl;R.sub.2 is(a) halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.2 alkoxy or C.sub.1 -C.sub.2 haloalkoxy if R.sub.1 is hydrogen or fluoro; or(b) hydrogen if R.sub.1 is trifluoromethyl;R.sub.3 is hydrogen or halogen; andR.sub.4 is hydrogen or mono- or poly-halogen.

Abstract: The invention provides novel arylalkene compounds of formula I, a process for their preparation and their use as intermediates for insecticidal compounds, comprising, ##STR1## wherein W represents 1 to 4 substituents selected from halo, alkyl, alkoxy, haloalkyl, haloalkoxy and alkoxyalkyl, or W represents a bidentate alkylene or alkylenedioxy group linking adjacent carbon atoms, X represents fluoroalkyl, and Y is selected from chlorine, bromine and alkoxy; and a process for preparing said ethers. The compounds of formula I are prepared by reacting a ketone of formula: ##STR2## with a phosphonium salt of formula Hal.sup.- (Q).sub.3 P.sup.+ -CH.sub.2 -Y, where Hal.sup.- represents a halide ion and Q represents alkyl or aryl.

Abstract: Halogenated unsymmetrical higher alkyl bisphenoxy alkanes having utility as non-blooming flame retardant agents.

Abstract: Vinyl ethers of the formula (I) ##STR1## where R.sup.1 to R.sup.3 are identical or different and are each hydrogen, a straight-chain or branched alkyl or alkenyl radical of not more than 12 carbon atoms, halogen-substituted alkyl, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, alkenylaryl, aralkyl or aralkenyl radical of 6 to 16 carbon atoms, halogen-substituted aryl or a heterocyclic radical and furthermore R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, together with the carbon atom to which they are bonded, may form a cycloalkane, cycloalkene or heterocyclic structure, and R.sup.4 is alkyl, alkylaryl or aralkyl, are prepared by a process in which an alcohol is eliminated from an acetal or ketal of the formula (II) ##STR2## where R.sup.1 to R.sup.4 have the above meanings, in the presence of borosilicate and/or iron silicate zeolites as catalysts.

Abstract: The invention relates to a novel supported catalyst comprising a combination of metals with nickel as component (a), a metal having an atomic number greater than 43 from Groups VIIB and VIII of the Periodic Table as component (b) and rhenium as component (c) in a weight ratio of (a):(b):(c) of about 10-90:0.05-5:0.03-10 and to the use of the catalyst for high pressure hydrogenation reactions, particularly for the hydrogenation of butanediol product containing aldehyde, butynediol and color forming impurities.

Abstract: The invention relates to a novel supported catalyst comprising (a) copper, (b) a metal having an atomic weight greater than 100 and selected from Groups VIIB and VIII of the Periodic Table and (c) an alkali metal in a weight ratio of about 8-40:0.05-5:1.5-10 and to the use of the catalyst in the hydrogenation of butyrolactone to 1,4-butanediol.

Abstract: A method is provided for making certain hydroxy-terminated arylene ethers useful as spacers in liquid crystalline polyesters. There is initially formed a dicarbonyl adduct from a dihydroxyaromatic compound, such as hydroquinone and a haloarylcarbonyl compound. The adduct formed is oxidized to the corresponding diester. Hydrolysis of the diester provides the hydroxy-terminated arylene ether.