Abstract: A polymerization inhibitor for stabilizing olefinically unsaturated monomers containing at least one compound of formula (1) and/or (2) according to the invention. Stabilized monomer compositions.

Abstract: A process for preparing telmisartan by reacting 2-n-propyl-4-methyl-6-(1?-methylbenzimidazol-2?-yl)benzimidazole with a compound of formula (IV) wherein Z is a leaving group, to obtain the compound 2-cyano-4?-[2?-n-propyl-4?-methyl-6?-(1??-methylbenzimidazol-2??-yl)benzimidazol-1?-ylmethyl]biphenyl, and subsequently hydrolyzing the nitrile function to obtain the acid function.

Abstract: A method for transferring encrypted useful data objects (NDO) to a first telecommunication terminal (TG1) wherein at least one encrypted useful data object is initially transferred from a switching component to the first telecommunication terminal. Time information (SABS) is transferred from the switching component to the first telecommunication terminal indicating up to which moment in time a rights object (RO) associated with the at least one encrypted useful data object will arrive. Once, the rights object received by the first telecommunication terminal, the telecommunication terminal checks if the moment in time indicated in the time information has elapsed. If the moment has not elapsed, the first telecommunication terminal issues a signal relating to the receipt of a useful data object via a user interface.

Abstract: The invention provides a process for making compounds of the general formula I: wherein R2, R4, R5, R11 and Q are defined as in claim 1. The compounds of the general formula I are effective inhibitors of HIV reverse transcriptase.

Abstract: The invention relates to a continuous process for preparing dihydropyrones of general formula I, wherein the groups R1 and R2 have the meanings described herein.

Abstract: The present invention relates to an improved process for preparing 4-(6-bromohexyloxy)-butylbenzene by reacting 4-phenylbutanol with 1,6-dibromohexane in the presence of a base and a phase transfer catalyst, wherein 4-phenylbutanol in a diluent is metered into a mixture consisting of 1,6-dibromohexane, a base, a phase transfer catalyst and a diluent, and the use of the 4-(6-bromohexyloxy)-butylbenzene thus prepared for producing salmeterol in a method known per se.

Abstract: The invention provides a process for making compounds of the general formula I: wherein R2, R4, R5, R11 and Q are defined as in claim 1. The compounds of the general formula I are effective inhibitors of HIV reverse transcriptase.

Abstract: The present invention is directed to a process for the synthesis of monoalkylated C—H acidic methylene group-containing compounds, such as malonic esters, and malonic ester nitriles.

Abstract: An alcohol can be oxidized by a process in which a primary or secondary alcohol are reacted with an oxygen-containing gas in the presence of a catalyst composition containing (i) a stable free nitroxyl radical derivative, (ii) a nitrate source, (iii) a bromide source, and (iiii) a carboxylic acid, thereby obtaining an aldehyde or a ketone.

Abstract: A process for preparing 4-substituted 2,2,6,6-tetramethylpiperidin-N-oxy compounds (II) or mixtures of (II) and 4-substituted 2,2,6,6-tetramethylpiperidin-N-hydroxy compounds (III) where X+Y can be O or can represent a cyclic ketal with the radicals or can represent an open-chain ketal in which X?O—R and Y?O—R?, where R and R? can be identical or different and can each be CH3, CH2—CH3, CH2—CH2—CH3, CH(CH3)—CH3, CH2—CH2—CH2—CH3 and CH2—CH(CH3)—CH3, by oxidizing corresponding 4-substituted 2,2,6,6-tetramethylpiperidines (I) with hydrogen peroxide in the presence of alkali metal hydrogencarbonate and/or ammonium hydrogencarbonate and in the presence or absence of a solvent, in which the reaction is carried out with the addition of Brönsted acids which have an acid strength greater than that of the hydrogencarbonate.

Abstract: Process for preparing vanillylamine or one of the salts thereof by reacting vanillin with hydroxylamine or the salts thereof in the presence of an organic salt, which may optionally be produced in situ, wherein the reaction is carried out in an inorganic or organic acid as diluent, and subsequently hydrogenating the resulting vanillyloxime with hydrogen in the presence of a suitable catalyst and an organic and/or inorganic acid.

Abstract: The present invention relates to a process for preparing a 2-(ethoxymethyl)-tropane derivative or a pharmaceutically acceptable salt thereof, by reacting the corresponding 2-(hydroxymethyl)-tropane derivative with ethyl bromide in the presence of a base, and a phase transfer catalyst.

Abstract: The present invention is directed to a method for producing amino acids by reacting halogenated carboxylic acid ester (haloacid esters) with a metal cyanate in the presence of an alcohol and by subsequent acidic saponification of the urethane carbonic acid formed. The method is characterized by the metal cyanate being placed at an elevated temperature in an organic solvent and the other reactants being continuously charged into the mixture over a defined time period.

Abstract: The present invention relates to an improved process for preparing 4-(6-bromohexyloxy)-butylbenzene by reacting 4-phenylbutanol with 1,6-dibromohexane in the presence of a base and a phase transfer catalyst, wherein 4-phenylbutanol in a diluent is metered into a mixture consisting of 1,6-dibromohexane, a base, a phase transfer catalyst and a diluent, and the use of the 4-(6-bromohexyloxy)-butylbenzene thus prepared for producing salmeterol in a method known per se.

Abstract: The present invention relates to an improved process for preparing 4-(6-bromohexyloxy)-butylbenzene by reacting 4-phenylbutanol with 1,6-dibromohexane in the presence of a base and a phase transfer catalyst, wherein 4-phenylbutanol in a diluent is metered into a mixture consisting of 1,6-dibromohexane, a base, a phase transfer catalyst and a diluent, and the use of the 4-(6-bromohexyloxy)-butylbenzene thus prepared for producing salmeterol in a method known per se.

Abstract: A process for preparing telmisartan by reacting 2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2′-yl)benzimidazole with a compound of formula (IV) 1

Abstract: Process for preparing vanillylamine or one of the salts thereof by reacting vanillin with hydroxylamine or the salts thereof in the presence of an organic salt, which may optionally be produced in situ, wherein the reaction is carried out in an inorganic or organic acid as diluent, and subsequently hydrogenating the resulting vanillyloxime with hydrogen in the presence of a suitable catalyst and an organic and/or inorganic acid.

Abstract: The invention relates to a process for ketalizing triacetonamine by reacting triacetonamine and a hydroxyl derivative, for example, a mono- or polyhydric alcohol, with gaseous hydrogen chloride to give an open-chain or cyclic ketal.

Abstract: The present invention is directed to a process for the synthesis of monoalkylated C—H acidic methylene group-containing compounds, such as malonic esters, and malonic ester nitriles.

Abstract: The present invention relates to an improved process for preparing 4-(6-bromohexyloxy)-butylbenzene by reacting 4-phenylbutanol with 1,6-dibromohexane in the presence of a base and a phase transfer catalyst, wherein 4-phenylbutanol in a diluent is metered into a mixture consisting of 1,6-dibromohexane, a base, a phase transfer catalyst and a diluent, and the use of the 4-(6-bromohexyloxy)-butylbenzene thus prepared for producing salmeterol in a method known per se.