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An approach to biogenetically overlooked areas of the isoprenoid chemical space is presented. This strategy is based on the generation of a cationic center in functionalized polyolefins by Lewis acid activation of a carbonyl group, rather than by electrophilic attack at a double bond. Starting from the monocyclic humulane trienone zerumbone, polycyclic sesquiterpenoid skeletons which are either not...
In der Falle: Cysteamin reagiert in DMSO mit elektrophilen Doppelbindungen unter Bildung von Michael‐Addukten (siehe Schema), wogegen in unpolaren Medien keine Abfangreaktion stattfindet. Eine einfache und schnelle NMR‐spektroskopische Methode zur Identifizierung von Michael‐Akzeptoren sowie deren Klassifizierung als reversible und irreversible Thiolsenken wurde in einem Zellassay, der empfindlich...
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