Total synthesis of 8-oxypseudopalmatine and 8-oxypseudoberberine via ring-closing metathesis
摘要:
Concise synthesis of 8-oxypseudopalmatine and 8-oxypseudoberberine has been achieved using ruthenium-catalyzed ring-closing metathesis (RCM) as the key step, in which the RCM substrates, 3-arylisoquinolinones, were prepared by lithiated cycloaddition reaction with o-toluamides and benzonitriles. (C) 2009 Elsevier Ltd. All rights reserved.
Construction of a Protoberberine Alkaloid Skeleton via the Palladium-Catalyzed α-Arylation–Amide Formation Cascade
作者:Shaofeng Li、Hanyu Nie、Mengyan Duan、Wenfei Wang、Congjun Zhu、Chuanjun Song
DOI:10.1021/acs.orglett.1c03871
日期:2021.12.17
strategy of one-pot synthesis of protoberberine alkaloid derivativesvia palladium-catalyzed cascade α-arylation and cyclization, which can afford the target molecules in moderate to excellent isolated yields using commercially available raw materials under solvent-free conditions. This protocol provides an efficient and convenient path to multisubstituted protoberberine derivatives. In addition, it can