Basf Se Corporation

Ciba Specialty Chemicals Corporation

Ratiopharm Gmbh

Solvias Ag

Basf Se Ludwigshafen

Ciba Specialty Corporation

Windlin, Franz Niklaus

Ganz, Holger

Berens, Ulrich

Tishkov, Alexander

Ulrich Berens

Oliver Dosenbach

Frank Bienewald

Daniel Sprenger

Hans Jürg Kirner

Holger Ganz

Beat Schmidhalter

Franz Niklaus Windlin

Cinzia Tartarini

Walid Al-Akhdar

Ulrich Müller

Ralf Pelzer

Fritz Blatter

Pierre Martin

Patrice Bujard

Jean-Luc Birbaum

Martin Szelagiewicz

Bilge Yilmaz

Adalbert Braig

Bruno Rotzinger

Kai-Uwe Schöning

Laszlo Szarvas

Tiziana Chiodo

Gabriele Iffland

Paul Van Der Schaaf

Mathieu G R Turbiez

Jean-Charles Flores

Ulrich Griesbach

Kai-Uwe Schoening

Vijay Narayanan Swaminathan

Wolfgang Peter

Katia Studer

Jörg Botzem

Nicole End

Nicola Christiane Aust

Markus Grob

Jörg Berghausen

Tania Weyland

Alexander Tishkov

Andreas Boudier

Alexander Dichtl

Pier Giorgio Cozzi

Arno Stassen

Wolfgang Kalb

Thomas Haag

Catherine Stoessel

Joerg Botzem

Mathieu GR Turbiez

Alcohols are prepared by electrochemical reductive coupling of an aromatic vinyl compound and a carbonyl compound in a process which comprises electrolyzing an electrolyte solution in an electrochemical cell, the electrolyte solution comprising the aromatic vinyl compound, the carbonyl compound and a non-aqueous protic solvent, such as methanol, wherein the electrolyte solution is in contact with a carbon-based cathode. Styrene is reacted with acetone to prepare 2-methyl-4-phenyl-2-butanol.

Process for preparing alcohols by electrochemical reductive coupling

The present invention relates to symmetric diesters of hydroxyalkyl-4-hydroxy-tetraalkylpiperidine compounds and their use as light stabilizers. They are compatible with and soluble in coating formulations of different polarity.

Light stabilizers

The present invention relates to a process for the preparation of a zeolitic material having a structure comprising YOand optionally comprising XO, preferably comprising YOand XO, wherein said process comprises the steps of

Synthesis of zeolitic materials using N,N-dimethyl organotemplates

The invention relates to a compound of the formula (I-1) whereinn is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 or 25, R, R, R, R, R, R', R&#x2032;, R&#x2032;, R&#x2032;and R&#x2032;are each independently from each other H or C-C-alkyl. Compounds of the formula (I-1) or stabilizer mixtures containing compounds of the formula (I-1) are especially used for stabilization of polymers against degradation by oxidation, heat or light.

Polyglycol bis-[3-(7-tert-butyl-2-oxo-3-phenyl-3H-benzofuran-5-yl-)propanoyl] derivatives as stabilizers of organic material

A method of purifying an organic diphosphite of general formula (I)  The method comprises providing a crude organic diphosphite of general formula (I) that is at least partly dissolved in a first solvent (L1), wherein (L1) is selected from the group consisting of alkylbenzenes, aryl alkyl ethers, chlorobenzene, and mixtures thereof, and precipitating by admixing with a second solvent (L2) selected from the group consisting of linear C-C-alkanols, ethylene glycol di(C-C-alkyl) ethers, and mixtures thereof, and separating off the precipitated organic diphosphite from the solvents.

Method of purifying organic diphosphite compounds

The present invention relates to a process for preparing 6-chlorodibenzo[d,f][1,3,2]dioxaphosphepin (I) which comprises reacting 2,2'-dihydroxybiphenyl with PClin the presence of a catalytic amount of an acid salt of a nitrogen base, wherein the reaction is carried out in the absence of external organic solvents.

Process for preparing 6-chlorodibenzo[D,F][1,3,2]dioxaphosphepin

The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.

Synthesis of amines and intermediates for the synthesis thereof

The present invention relates to a crystalline non-solvated form of 6,6'-[[3,3&#x2032;,5,5&#x2032;-tetrakis(1,1-dimethylethyl)-[1,1&#x2032;-biphenyl]-2,2&#x2032;-diyl]bis(oxy)]bis-dibenzo[d,f][1,3,2]-dioxaphosphepine (compound I) and toluene-solvates and acetone-solvates thereof.

Crystalline solvate and non-solvated forms of 6,6'-[[3,3&#x2032;,5,5&#x2032;-tetrakis(1,1-dimethylethyl)-[1,1&#x2032;biphenyl]-2,2&#x2032;-diyl]bis(oxy)]bis-dibenzo [d,f] [1,3,2]-dioxaphosphepine

Monomeric or polymeric compounds comprising at least one moiety of the formula (Ia) wherein X is CR, where R is H or a substituent as defined in claim, or is another ketopyrrole moiety e.g. of the formula (Ib) or (Ic) with this moiety and all other symbols are as defined in claim, show good solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in semiconductor devices or organic photovoltaic (PV) devices (solar cells). 

Ketopyrroles as organic semiconductors

The invention pertains to novel oligofunctional photoinitiators of the formula (1) or (1A). Rand Rare methyl or together are &#x2014;(CH)&#x2014;; and n is 2 or 3, and the solvent in (1A) is water or an organic solvent; and their use in photopolymerizable compositions, in particular inks. 

Oligofunctional photoinitiators

A semiconducting layer comprising a non-polymeric quinoid heteroacene compound of the formula (I) wherein X stands for O, S or NR, each of R, R, R, R, R, R, R, R, Rbeing independently selected from hydrogen and an organic residue, or 2 or more thereof together forming one or more annealed rings, which may be substituted or unsubstituted, carbocyclic or helerocyclic, aromatic, quinoid or aliphatic, may be used e.g. for the manufacture of a diode, an organic field effect transistor, an organic thin film transistor, or a device containing a diode and/or an organic field effect transistor and/or organic thin film transistor. 

Quinoid systems as organic semiconductors

The invention relates to a semiconductor device comprising a compound of the formula I and of the formula XXI, wherein the symbols have the meanings defined in the specification, to the novel compounds of the formula I and XXI and to the use of such a compound as an organic semiconductor for the preparation of an electronic device, and further compounds and devices, as well as other embodiments given in the specification. 

Organic semiconductors and their manufacture

The present invention relates to process for the production of plane-parallel platelets, comprising the steps of: a) vapor-deposition of a separating agent onto a carrier to produce a separating agent 5 layer, b) vapor-deposition of at least one product layer onto the separating agent layer, and c) dissolution of the separating agent layer in a solvent and production of a suspension in which the at least one product layer is present in the form of plane-parallel platelets, wherein the separating agent is selected from the group consisting of anthracene, anthraquinone, acetamidophenol, acetylsalicylic acid, camphoric anhydride, benzimidazole, benzene-1,2,4-tricarboxylic acid, biphenyl-2,2-dicarboxylic acid, bis(4-hydroxyphenyl)sulfone, dihydroxyanthraquinone, hydantoin, 3-hydroxybenzoic acid, 8-hydroxyquinoline-5-sulfonic acid monohydrate, 4-hydroxycoumarin, 7-hydroxycoumarin, 3-hydroxynaphthalene-2-carboxylic acid, isophthalic acid, 4,4-methylene-bis-3-hydroxynaphthalene-2-carboxylic acid, naphthalene-1,8-dicarboxylic anhydride, phthalimide and its potassium salt, phenolphthalein, phenothiazine, saccharin and its salts, tetraphenylmethane, triphenylene, triphenylmethanol, and also mixtures of at least two of those substances, especially pentaerythritol (C(CHOH)), trimesic acid (=1,3,5 benzene tricarboxylic acid), DL-alanine, DL-valine, 2,6-20 diaminopurine, ascorbic acid, 1,3,5-benzenetricarboxylic acid, o-acetylsalicyclic acid, diphenic acid, terephthalic acid, pyrogallol, cyanuric acid, hexamethyltetramine (urotropin), fumaric acid, and 4-acetylbenzoic acid and also mixtures of at least two of those substances.

Process for preparing flake-form pigments based on aluminum and on Sioz(Z=0.7-2.0) comprising forming a layer of separating agent

Growing community of inventors

Binzen, Germany

Ulrich Berens