289507-32-0Relevant academic research and scientific papers
Co(III)-Catalyzed Annulative Vinylene Transfer via C-H Activation: Three-Step Total Synthesis of 8-Oxopseudopalmatine and Oxopalmatine
Li, Xinghua,Huang, Ting,Song, Ying,Qi, Yue,Li, Limin,Li, Yanping,Xiao, Qi,Zhang, Yuanfei
, p. 5925 - 5930 (2020/08/12)
The Co(III)-catalyzed redox-neutral annulation of benzamides and acrylamides with vinylene carbonate for the synthesis of isoquinolinones and pyridinones has been developed. This protocol employing inexpensive Co(III) as the catalyst tolerated diverse functional groups and substitution patterns, affording the target products with good to excellent yields. The synthetic utility of this transformation was demonstrated by a three-step synthesis of gusanlung D, 8-oxopseudopalmatine, and oxopalmatine.
Aryl radical cyclizations: One-pot syntheses of protoberberine and pavine alkaloids
Orito, Kazuhiko,Satoh, Yoshitaka,Nishizawa, Hidetoshi,Harada, Rika,Tokuda, Masao
, p. 2535 - 2537 (2007/10/03)
(equation presented) Treatment of 2-(2′-bromo-β-phenethyl)isocarbostyrils 7 with AIBN Bu3SnH in boiling benzene gave 8-oxoberbines 3 in good yields. A similar treatment of 2-(2′-bromo-β-phenethyl)isoquinolinium bromides 6 and their nor- and hom
