Abstract: A new process is described for the production of 6-alpha-amino-penicillins and 7-alpha-amino-desacetoxy-cephalosporins free from halogen-containing solvents by acylating 6-APA, 7-ADCA or a derivative thereof in a halogen-free solvent.

Abstract: A new process is described for the production of 6-alpha-amino-penicillins and 7-alpha-amino-desacetoxy-cephalosporins free from halogen-containing solvents by acylating 6-APA, 7-ADCA or a derivative thereof in a halogen-free solvent.

Abstract: An apparatus and method for uniformly contacting an article with a treatment solution. Preferred embodiments are methods of uniformly tinting of contact lenses or uniformly surface modifying contact lenses. The method involves suspending the lens in the treatment solution by application of fluid flow, preferably sinusoidal or pulsed, in a direction opposite the stagnant force (i.e., sum of buoyancy and gravity forces) on the article. The fluid flow prevents the lens from contacting the container structure for periods sufficient to cause non-uniform treatment conditions, while continuously mixing the treatment solution to maintain uniform concentrations throughout.

Abstract: IgE binding factors (IgE-bfs) with IgE suppressor (IgE-SF) activity obtainable from human colostrum in an enriched form, a method for the prevention and/or the treatment of allergy by administering the IgE-bfs and pharmaceutical compositions comprising said IgE-bfs.

Abstract: A composition comprising (a) at least one oxidized polycationic polyheteroaromatic compound and (b) at least one polyanion of a film-forming thermoplastic polymer containing sulfated alcohol groups ##STR1## in repeating structural units. The composition has high electrical conductivity and good mechanical properties, especially after drawing at temperatures below the melt/decomposition temperature. The material may be used as electrodes, electrically conductive filaments or components for electromagnetic screening.

Abstract: Asymmetric hydrogenation of prochiral N-aliphatic ketimines to give optically active secondary amines at a temperature from -20.degree. to 80.degree. C., a hydrogen pressure of 10.sup.5 to 10.sup.7 Pa, with the addition of catalytic amounts of an iridium compound of the formula III or IIIa[XIrYZ] (III)or[XIrY].sup..sym. A.sup..crclbar. (IIIa)in which X is two olefin ligands or a diene ligand, Y is a chiral diphosphine the secondary phosphine group of which are attached through 2-4 C atoms and which, together with the Ir atom, forms a 5-membered, 6-membered or 7-membered ring, or Y is a chiral diphosphinite the phosphinite groups of which are attached via 2 C atoms and which, together with the Ir atom, forms a 7-membered ring, Z is Cl, Br or I and A.sup.- is the anion of an oxygen acid or complex acid, and, if appropriate, with the addition of an ammonium chloride, bromide or iodide or an alkali metal chloride, bromide or iodide.

Abstract: .alpha.-Pyrones of the formula I ##STR1## in which R.sup.1 is --CF.sub.3 or --COOR.sup.3 and R.sup.3 is the radical of a C.sub.1 -C.sub.18 alcohol diminished by a hydroxyl group, and R.sup.2 is --F, --Br, --Cl, --CN, --CF.sub.3, C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.2 -C.sub.18 alkynyl, C.sub.1 -C.sub.18 alkoxy, C.sub.1 -C.sub.18 alkylthio, C.sub.1 -C.sub.18 alkylsulfonyl, C.sub.6 -C.sub.16 aryl, C.sub.7 -C.sub.24 alkaryl, C.sub.7 -C.sub.12 aralkyl, C.sub.8 -C.sub.24 alkaralkyl, C.sub.6 -C.sub.16 aryloxy, C.sub.6 -C.sub.16 arylthio, C.sub.6 -C.sub.16 arylsulfonyl, C.sub.7 -C.sub.24 alkaryloxy, C.sub.7 -C.sub.24 alkarylthio, C.sub.7 -C.sub.24 alkarylsulfonyl, C.sub.7 -C.sub.12 aralkyloxy, C.sub.7 -C.sub.12 aralkylthio, C.sub.7 -C.sub.12 aralkylsulfonyl, C.sub.8 -C.sub.24 alkaralyloxy, C.sub.8 -C.sub.24 alkaralylthio, C.sub.8 -C.sub.24 alkaralylsulfonyl, secondary amine having 2 to 24 C atoms or trialkylsilyl or trialkoxysilyl each of which has 3 to 18 C atoms.

Abstract: As a result of the action of electron acceptors, for example chlorine, bromine and/or iodine, on compositions containing a linear, branched or structurally crosslinked polymer and an unsubstituted or substituted tetrathionaphthalene, tetraselenonaphthalene, tetratelluronaphthalene, tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, electrical conductivity is imparted to the compositions through the formation of charge-transfer complexes. These compositions are suitable for the production of mouldings, filaments, fibres, coatings and composite materials which have an antistatic finish or are electrically conducting.

Abstract: The invention relates to .alpha.-pyrones of formula I ##STR1## wherein R.sup.1 is chloro or bromo and R.sup.2 is hydrogen, chloro or bromo. The halogen in 4-position can be replaced, for example, by alkoxy, alkylthio or secondary amino. The .alpha.-pyrones are suitable diene components for Diels-Alder reactions.

Abstract: Compounds of formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H, alkyl or aryl, m and n are 0 or 1, and A is a divalent organic radical which, with (CR.sup.1 R.sup.2).sub.m NF--SO.sub.2 (CR.sup.3 R.sup.4).sub.n groups, forms a 5- to 8-membered ring, are admirably suitable fluorinating agents for fluorinating carbon atoms, especially as stereospecific fluorinating agents, when the compounds contain a chiral carbon atom and are in optically active form. The compounds of formula I are prepared by reacting the corresponding silated sulfonamides, wherein the NF group is replaced by an N-SiR.sup.7 R.sup.8 R.sup.9 group and R.sup.7, R.sup.8 R.sup.9 are each independently C.sub.1 -C.sub.12 alkyl, cyclopentyl, cyclohexyl, benzyl or phenyl, with a fluorinating agent.

Abstract: Naphthacene-5,12-diones which are substituted by at least one organic thio radical are not only photoinitiators for the photopolymerization but also sensitizers for the photodimerization of ethylenically unsaturated compounds. Compositions made of these naphthacene-5,12-diones and ethylenically unsaturated compounds are suitable for the preparation of printing inks, paints, printing plates, resist materials or as image recording material.

Abstract: A transportable crude oil in water emulsion which is stable to both breakdown and phase inversion up to at least about 50.degree. C., containing an effective, compatible emulsion stabilizing amount of an anionic, nonionic or amphoteric fluorochemical surfactant, and optionally a hydrocarbon surfactant, and a method of transporting a crude oil in the form of such emulsion.

Abstract: Substituted tetrathiotetracenes and tetraselenotetracenes of the formula I ##STR1## in which Z is --S-- or --Se-- and (a) R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H and R.sup.5 to R.sup.8 are each H and at least one of the radicals R.sup.5 to R.sup.8 independently of one another is a substituent belonging to the group comprising C.sub.1 -C.sub.20 alkyl--X--.sub.p which is unsubstituted or substituted by halogen, --CN, --CONR.sup.9 R.sup.10, --OR.sup.9, --SR.sup.9 or --COOR.sup.9, with the exception of C.sub.1 -C.sub.4 alkyl and methoxy, C.sub.2 -C.sub.18 alkenyl--X--.sub.p, C.sub.2 -C.sub.18 -alkynyl--X--.sub.p, C.sub.3 -C.sub.8 cycloalkyl--X--.sub.p, (C.sub.1 -C.sub.12 alkyl)--C.sub.3 -C.sub.8 cycloalkyl--X--.sub.p, C.sub.3 -C.sub.8 cycloalkyl-C.sub.r H.sub.2r --X--.sub.p, (C.sub.1 -C.sub.12 alkyl)-C.sub.3 -C.sub.8 -cyclo alkyl-C.sub.r H.sub.2r --X--.sub.p, phenyl--X--.sub.p, (C.sub.1 -C.sub.12)alkyl)-phenyl--X--, phenyl-C.sub.r H.sub. 2r --X--.sub.p and (C.sub.1 -C.sub.12 alkyl)-phenyl-C.sub.r H.sub.

Abstract: Compounds of formula I ##STR1## wherein X.sup..crclbar. is Cl.sup..crclbar. or Br.sup..crclbar.,M is Cu.sup.2.sbsb..sym. or Ni.sup.2.sbsb..sym.,Z is a halogen atom, --NH.sub.2, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkoxy,R.sup.1 is H, methyl methoxy, halogen or --NH.sub.2, andA is a group ##STR2## wherein R.sup.2 and R.sup.3 each independently have the same meaning as R.sup.1.The compounds are simultaneously cryochromic or thermochromic and are suitable as warning indicators for cooled or heated structural elements.

Abstract: The catalytic hydrogenation of halogenated nitro aromatics using Raney nickel in the presence of a formamidine salt as dehalogenation inhibitor affords halogenated aromatic primary amines in high yields and high chemical purity within short reaction times even at elevated temperatures.

Abstract: Anthraquinones having .alpha.,.alpha.-(dialkyl)alkyl groups which are functionally substituted, for example by --COOH or --CONH--NH.sub.2, are described. Compositions which contain such anthraquinones, an aminoalcohol and an epoxy resin with or without a hardener are suitable for preparing metallic coatings and images on the cured composition by exposure to light and currentless metal deposition.

Abstract: An active agent containing controlled release diffusion device comprising a swellable hydrogel matrix in the non-swollen state, interpenetrated with an active agent solute having a stable concentration distribution increasing in a gradient normal to the surface of the device and between the surface and the core thereof, said gradient being in the form of a substantially continuous, inflection point containing, sigmoidal curve, such that the device, when placed in an aqueous hydrogel swelling environment, release said active agent in a controlled continuous manner by diffusion for a predetermined period of time, a method of preparing such a device, and the use thereof to release an active agent into the intended environment of use.

Abstract: The present invention relates to the use of secondary 2-aminoalkyl-5-pyridinols of the general formula I ##STR1## wherein R is hydrogen or lower alkyl, m is an integer from 2 to 4 and n is an integer from 1 to 7, and the acid addition salts thereof, as nootropic agents and antidepressants and for the preparation of pharmaceutical compositions having nootropic and antidepressant activity.

Abstract: The present invention relates to desulfatohirudins, to the preparation thereof, to pharmaceutical compositions containing these compounds, and to the use thereof.The desulfatohirudins of this invention correspond to hirudin in biological activity and are therefore particularly useful for inhibiting blood clotting.

Abstract: Dermal and transdermal patches having a discontinuous pattern printed adhesive layer on a first surface of an active-agent porous membrane, a non-porous backing layer in contact with a second surface of said porous membrane, opposite said first surface so as to define a compartment capable of containing an active agent or formulation thereof therein, an active-agent or formulation thereof within said compartment, and a protective overlayer on said adhesive layer distal to said porous membrane.