Abstract: The disclosure is directed to a process for preparing an oxidic catalyst comprising copper in an oxidation state >0, which comprises treating a solid oxidic support material with an aqueous solution comprising at least one copper salt and at least one organic water soluble polymer which binds copper ions coordinatively in a concentration of from 0.1 to 100 g/l and then calcining, to the catalyst obtainable by this process and also to a process for dehydrogenating secondary alcohols to ketones using the catalysts, especially for dehydrogenating cyclohexanol.

Abstract: Palau'amine, of formula I below, may be isolated from a sponge (Stylotella agminata). The compound may be used in the manufacture of pharmaceutical compositions for the treatment of tumors, fungal infections and immunosuppressive affections.

Abstract: Palau'amine, of formula I below, may be isolated from a sponge (:). The compound may be used in the manufacture of pharmaceutical compositions for the treatment of tumors, fungal infections and immunosuppressive affections.

Abstract: The sun visor has a sun-visor body which is swingable around and longitudinally displaceable on a shaft. A detent device prevents unintended axial displacement. There are two contact springs which are insulated from each other and are connected with electric wires leading to an illuminating device arranged in the sun-visor body. One of the contact springs snaps into an indentation on the contact sleeve and the other one snaps into an indentation in the shaft. The shaft (connected at one end to the contact sleeve), consists of a metal tube serving as ground connector through which an electric conductor is conducted. The contact sleeve is by an insulating sleeve. The detent device serves not only for the detent engagement of the sun-visor body but also to supply current to the illuminating device.

Abstract: A vehicle sun visor having a sun-visor body with a sun-visor shaft at a corner. One end region of the shaft is seated in a bearing housing in the sun-visor body and clamped against by a spring. The end region of the sun-visor shaft has as a detent an axial region corresponding to the axial extent of the spring. The sun-visor shaft has three circumferential regions of different diameter over the axial detent region including a flat, and starting from one lengthwise edge of the flat, a circular arc region and, adjoining that, a region which is spirally decreasing in diameter toward the opposite circumferential edge of the flat.

Abstract: The life-saving appliance (1) is arranged in a covering (5), which is evacuated. So that the covering (5) cannot be damaged, it is enclosed in a hard foam casing (6). Through openings (7, 8) the life-saving appliance (1) can be released from the casing with the help of a pull member (4), or the vacuum in the covering (5) can be tested by touching the latter.

Abstract: Novel optically active chroman derivatives of the general formulae Ia and Ib ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.

Abstract: A process for the preparation of .alpha.-tocopherol of the formula I ##STR1## by reacting a chroman derivative with a C.sub.14 -Grignard reagent using a di-alkali metal tetrahalocuprate catalyst in a Schlosser-Fouquet reaction, wherein a chroman derivative of the general formula II ##STR2## where Y is a leaving group, especially Br, is used and is reacted, at from -70.degree. to 0.degree. C., first with a solution of about 1 equivalent of a Grignard compound of the general formula IIIX--Mg--R (III)where X is Cl, Br or I and R is straight-chain or branched alkyl of 1 to 14 carbon atoms, preferably methyl, ethyl or ##STR3## and then with a solution of a Grignard reagent of the formula IIIa ##STR4## in an ether solvent and a solution of a di-alkali metal tetrahalocuprate in an ether solvent. The novel process simplifies the preparation of 2RS,4'RS,8'RS-, 2R,4'RS,8'RS- or 2R,4'R,8'R-.alpha.-tocopherol by reacting a chroman structural unit, containing a C.sub.