Hydroxyarylketones via Ring-Opening of Lactones with Aryllithium Reagents: An Expedient Synthesis of (±)-Anabasamine
作者:Mark Trudell、Lei Miao、Stassi DiMaggio
DOI:10.1055/s-0029-1217047
日期:2010.1
The regioselective ring-opening of lactones (δ-valerolactone and γ-butyrolactone) with aryllithium reagents is reported for the construction of a series of δ-hydroxy aryl ketones and γ-hydroxy aryl ketones. Application of this method for the expeditious syntheses of (±)-anabasamine and its nicotine-related analogue are also described.
Microwave-Assisted Iridium-Catalyzed Synthesis of Nicotine and Anabasine Derivatives
作者:Mark Trudell、Tushar Apsunde
DOI:10.1055/s-0032-1316859
日期:——
Abstract Various functionalized nicotine and anabasine analogues are synthesized via a three-step sequence that exploits a microwave-assisted iridium-catalyzed N-heterocyclization of 1,4- and 1,5-diols for the construction of the pyrrolidine and piperidinering systems. The microwave-assisted N-heterocyclization furnishes derivatives of nicotine and anabasine in good yields (50–75%) with overall yields