Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal compositions containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: Compounds of the general formula I ##STR1## wherein one of the two radicals R.sub.1 and R.sub.2 denotes the acyl radical of a carboxylic acid of aromatic character and the other denotes hydrogen or optionally esterified or etherified hydroxyl, R.sub.3 denotes hydrogen, alkyl or hydroxyalkyl, R.sub.4 denotes optionally esterified or amidised carboxyl, m denotes 1 or 2 and n denotes 0 or 1, in the free form or in the form of their salts are useful as antiphlogistics, mild analgesics, antipyretics and as anti-rheumatic agents.

Abstract: .alpha.,.beta.-Unsaturated carboxylic acids and esters have a wide variety of chemical uses. The invention is a method of synthesizing .alpha.,.beta.-unsaturated carboxylic acids and esters which, with regard to the esters, comprises reacting a vinylmercuric halide with carbon monoxide in an alcohol to provide an .alpha.,.beta.-unsaturated carboxylic acid ester. With regard to the acids per se, the method comprises reacting a vinylmercuric halide with carbon monoxide, in the presence of a water containing polar organic solvent to provide an .alpha.,.beta.-unsaturated carboxylic acid.

Abstract: Aromatic compounds containing an .alpha.-fluoroalkyl or .alpha.,.alpha.-difluoroalkyl side chain are prepared by reacting selected aromatic compounds with a mixture of HF and a metal oxide which is PbO.sub.2 or NiO.sub.2 at -30.degree. to +80.degree. C. Exemplary is the conversion of 4-nitrotoluene to 4-(fluoromethyl)nitrobenzene and 4-(difluoromethyl)nitrobenzene.