A Singlet Oxygen Mediated New Access to Hydroxyindolenine-Catharanthine Derivatives by Two Sequential Oxidations

A Singlet Oxygen Mediated New Access to Hydroxyindolenine-Catharanthine Derivatives by Two Sequential Oxidations Asymmetric α‐Hydroxylation of β‐Indanone Esters and β‐Indanone Amides Catalyzed by C‐2′ Substituted Cinchona Alkaloid Derivatives Cinchona Alkaloid Derived Iodide Catalyzed Enantioselective Oxidative α-Amination of Carbonyl Compounds toward the Construction of Spiroindolyloxindole Catharanthus Alkaloids XXVI: Isolation of Cathanneine, a New Alkaloid from Catharanthus lanceus Total synthesis of indole and dihydroindole alkaloids. II. Partial synthesis of some nine-membered ring intermediates from catharanthine A New Route to 4-Oxygenated b-Carbolines: The Total Synthesis of Crenatine Monoterpenoid Indole Alkaloids from Catharanthus roseus Cultivated in Yunnan Catharanthus alkaloids. XXVII. Cathanneine, a new alkaloid from catharanthus lanceus Photo-Oxygenation of geraniol: synthesis of a novel series of hydroxy-functionalized anti-malarial 1,2,4-trioxanes Studies on Biomimetic Singlet Oxygen Oxidations: Application to the Synthesis of the Alkaloid Simulenoline