A Facile Synthesis of the Angucyclinone Antibiotic (+)-Rubiginone B2Involving the BF3-Mediated Diels-Alder Reaction of Juglone

Autor: Yoshinori Nishii, Hiromu Aoyama, Yusuke Masue, Sachiko Yoshioka, Jiro Motoyoshiya, Gento Iwayama
Rok vydání: 2004
Předmět:
Zdroj: Synthesis. 2004:2099-2102
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-2004-829196
Popis: A short synthesis of (+)-rubiginone B 2 is reported. The BF 3 -mediated Diels-Alder reaction of juglone and (R)-3-methyl-1-vinylcyclohexene followed by aromatization gave the anthraquinone as the desired regioisomer, whichwas converted into the target antibiotic after a two-step operation.
Databáze: OpenAIRE