Abstract:
The present invention is based on new ligand systems of the general formula (I). These ligand systems can be used advantageously in transition metal-catalysed asymmetric syntheses. Likewise encompassed are the transition metal complexes thus prepared, a process for preparing the ligands and the use of the complexes in asymmetric synthesis.
Abstract:
Die vorliegende Erfindung richtet sich auf Katalysatoren für die enantioselektive Aldol- bzw. Mannichreaktion, welche zum einen durch Anbindung an eine Polymer molekulargewichtsvergrößert sind und zum anderen als aktive die Aldol- bzw. Mannichreaktion enantioselektiv katalysierende Einheit eine Verbindung der allgemeinen Formel (I) aufweisen. Verfahren zur Herstellung und Verwendung.
Abstract:
The invention relates to catalysts for the enantioselective aldol or Mannich reaction. Said catalysts have an increased molecular weight by being bound to a polymer and as active units that enantioselectively catalyse the aldol or Mannich reaction comprise a compound of general formula (I). The invention also relates to a method for the production and use of said catalysts.
Abstract:
This invention relates to a process for the hydrogenation of a ketooxime to selectively form an aminoalcohol stereoisomer, and, in particular, to a process for the hydrogenation of 4,5-dihydro-imidazo[4,5,l-jk][1]benzazepin-2,6,7[1H]-trione-6-oxime or a salt thereof to selectively form a stereoisomer of 6-amino-7-hydroxy-4, 5, 6, 7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin-2[1H]-one or a salt thereof. This invention also relates to the use of the 6-amino-7-hydroxy-4, 5, 6, 7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin- 2[1H]-one hydrogenation product or a salt thereof to selectively make a stereoisomer of zilpaterolor a salt thereof, as well as the use of such a zilpaterol stereoisomer or salt in methods of treatment and medicaments for animals.
Abstract:
Die vorliegenden Erfindung ist auf die Verwendung von Katalysatoren aufweisend die Strukturen der allgemeinen Formel (I), (II) oder (III): zur asymmetrischen Anhydridöffnung gerichtet.