Abstract: A process to stabilize nitrogen-containing or oxygen-containing organosilane from acid catalyzed attack and retard the resulting decomposition is disclosed. Such organosilanes, and the nitrogen-containing organosilane in particular, with a least one Si—H or N—H group are susceptible to this type of product decomposition. Treatment with a weakly basic ion exchange media retards this decomposition by scavenging the anions or acids that are attacking the Si—H group. Dilute exposures to these anions can initiate significant decomposition and effect product stability and long-term shelf-life for semiconductor processing for the use of silicon oxide, silicon oxynitride and silicon nitride films.

Abstract: Sertraline hydrochloride polymorphic form II is conveniently prepared by adding hydrogen chloride to solution of sertraline free amine in a ketone. In preferred processes, the solution of sertraline free amine seeded with some crystals of polymorphic form II and/or the solution is heated before addition of the hydrogen chloride.

Abstract: Hydrogenation of a chlorosilane takes place in a reactor having a graphite reaction chamber with a surface which contacts the chlorosilane and a graphite electric heating element which also contacts the chlorosilane, wherein an Si-containing compound and hydrogen are contacted with the reaction chamber and the heating element such that an SiC coating is formed in situ on their surfaces in a first process step, and hydrogenation of the chlorosilane is effected by heating of a chlorosilane/hydrogen mixture in the reaction chamber by means of the heating element in a second process step, the first process step carried out at a reaction temperature which is higher than the reaction temperature of the second process step.

Abstract: Novel 4,4-diarylbutadiene-substituted diorganopolysiloxanes having the structural formulae (1) or (2): in which A is a radical of formula (3) below: are useful sunscreens for UV-photoprotecting human skin against the damaging effects of UV-radiation, notably UV-A radiation.

Abstract: The present invention provides an efficient method of making O-desmethyl-venlafaxine.

Abstract: [Problems] It is to provide a process by which an organosilicon compound having a hexafluorocarbinol group can be easily produced on an industrial scale without via a complicated production step. [Means for solving problems] The following compound represented by the formula (1) and a trialkoxysilane are subjected to hydrosilylation to obtain a compound represented by the formula (2). (In the formula, R is an alkoxy group having carbon atoms from 1 to 3.) [Effects] Since the compound obtained in the present invention is a trifunctional alkoxysilane, use of a crosslinking reaction leads to a silicone resin and a silsesquioxane. The hexafluorocarbinol group functions as an excellent alkaline water-soluble group.

Abstract: Compounds represented by the following general formula (I) or salts thereof: wherein R1 represents hydrogen atom, hydroxyl group, or an alkoxy group; R2 represents hydroxyl group or an alkoxy group which may be substituted; R3 represents hydrogen atom or an alkyl group which may be substituted; Y represents —CH?CH— or —CH2—; n represents 0 or 1; Ar represents an aryl group which may be substituted or a heteroaryl group which may be substituted, which are useful as inhibitors against the abscisic acid biosynthesis and plant growth regulators.

Abstract: The invention relates to compounds of formula (I) (XaRbSi)m[(B) ([O]oP[O]pR?cYd)n]4-a-b (I), where the groups, residues and indices have the following meanings: B=an at least doubly-valent straight chained or branched group with at least one organic polymerizable group and at least three carbon atoms, X=a group which may be cleaved from the silicon atom by hydrolysis, R=optionally substituted alkyl, alkanyl, aryl, alkylaryl or arylalkyl, R??R, Y?Cl, OH or OR?, R??H, alkyl or aryl, a=0, 1, 2 or 3, b=0, 1 or 2, a+b together=1, 2 or 3, c=0, 1 or 2, d=0, 1 or 2, c+d together=2, m=at least 1, with the proviso that m is not greater than 1 when a+b=1 or 2, n=at least 1, o=0 or 1 and p=0 or 1. The invention further relates to a series of methods by which the above compounds may be produced.

Abstract: Novel 4,4-diarylbutadiene-substituted methyltrialkylsilanes having the structural formula (I): are useful sunscreens for UV-photoprotecting human skin against the damaging effects of UV-radiation, notably UV-A radiation.

Abstract: An implant or intravascular stent comprising a polymeric composition capable of releasing nitric oxide under physiological conditions. The polymeric composition comprises a polymer and at least one nitric oxide-releasing N2O2? functional group bound to the polymer.

Abstract: A specified aromatic amine derivative having a chrysene structure. An organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein at least one of the organic thin film layer comprises the aromatic amine derivative singly or as its mixture component. Organic electroluminescence devices having a long lifetime and a high efficiency of light emission, and aromatic amine derivatives capable of realizing such organic electroluminescence devices are provided.

Abstract: Organosilicon compounds of the general formula I are produced by catalytically reacting silanes of the general formula II with alcohols of the general formula R?—OH, with the elimination of RIVOH, wherein the molar ratio of R—OH to RIVOH— groups is at least 1 and RIVOH is removed continuously or discontinuously from the reaction mixture. The organosilicon compounds may be used as coupling agents in filler-reinforced rubber mixtures.

Abstract: The invention provides compounds which are excellent in terms of heat resistance, mechanical characteristics, electric characteristics, physical properties, etc. and which provide a novel material useful for, for example, interlayer insulating film or protective film for use in semiconductor devices, interlayer insulating film for use in multilayer wiring boards, cover coating in flexible printed circuits, or a liquid crystal alignment layer. The compounds are bis(3-amino-4-hydroxyphenyl)adamantane derivatives having a structure represented by formula (I) or (II): (each of R1 to R4 represents a halogen atom, a hydroxyl group, an alkyl group, an alkoxyl group, a carboxyl group, or an alkoxycarbonyl group, each of m and a is an integer of 0 to 3, and each of n and b is an integer of 0 to 14, with the proviso that the case where the following three conditions in formula (I) are met is excluded: R2 is methyl and present at a bridgehead; m is 0; and n is 2).

Abstract: A siloxane dielectric precursor for use in a chemical vapor deposition (CVD) process, which has been dosed with a stabilizing agent(s) selected from free-radical inhibitors, end-capping agents and mixtures thereof. The stabilized siloxane dielectric precursor reduces the occurrence of premature deposition reactions occurring in the heated environment of the CVD delivery lines and process hardware.

Abstract: Organohalosilanes are prepared by charging a reactor with a contact mass of metallic silicon and a catalyst and feeding an organohalide-containing gas to the reactor. Tin or a tin compound is used as the catalyst. Then organohalosilanes can be produced quite efficiently at a high reaction rate while maintaining a low T/D ratio and minimizing the deposition of by-products and carbon.

Abstract: (N-organylaminoorganyl)triorganylsilanes and (N,N-diorganylamino-organyl)triorganyl silanes are prepared in exceptional yield and high purity by reacting a cyclic or acyclic amine with low water content with a haloorganylsilane.

Abstract: An efficient cost-effective process for preparation of 1-erythro-2-amino-1-phenyl-1-propanol from 1-1-phenyl-1-hydroxy-2-propanone, which comprises converting 1-1-phenyl-1-hydroxy-2-propanone to 1-1-phenyl-1-hydroxy-2-propanone oxime and reducing the oxime with a catalyst consisting of finely divided nickel and aluminium metals giving good diastereomeric purity and yield.

Abstract: Compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers are provided. The compositions include a water-soluble phenylenediamine composition.

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: In the above Structure I, the substituents are as defined in the application. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.

Abstract: The present invention relates to a novel process for obtaining (1S,4S)N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthaleneamine from a mixture of its isomers. The process involves isomerising the 1-position and the 4-position and effecting separation of the desired isomer by methods such as fractured crystallization. The process can be operated as a continuous process.