Efficient Method for Synthesis of Angucyclinone Antibiotics via Gold-Catalyzed Intramolecular [4 + 2] Benzannulation: Enantioselective Total Synthesis of (+)-Ochromycinone and (+)-Rubiginone B2
摘要:
An efficient synthetic approach to angucyclinone antibiotics, (+)-ochromycinone and (+)-rubiginone B-2, is reported. The key step involves the facile formation of 2,3-dihydrophenantren-4(1H)-one skeleton, an important framework of angucyclinone natural products, by using gold-catalyzed intramolecular [4 + 2] benzannulation reaction.
Efficient Method for Synthesis of Angucyclinone Antibiotics via Gold-Catalyzed Intramolecular [4 + 2] Benzannulation: Enantioselective Total Synthesis of (+)-Ochromycinone and (+)-Rubiginone B2
摘要:
An efficient synthetic approach to angucyclinone antibiotics, (+)-ochromycinone and (+)-rubiginone B-2, is reported. The key step involves the facile formation of 2,3-dihydrophenantren-4(1H)-one skeleton, an important framework of angucyclinone natural products, by using gold-catalyzed intramolecular [4 + 2] benzannulation reaction.
Efficient Method for Synthesis of Angucyclinone Antibiotics via Gold-Catalyzed Intramolecular [4 + 2] Benzannulation: Enantioselective Total Synthesis of (+)-Ochromycinone and (+)-Rubiginone B<sub>2</sub>
作者:Kenichiro Sato、Naoki Asao、Yoshinori Yamamoto
DOI:10.1021/jo051444m
日期:2005.10.1
An efficient synthetic approach to angucyclinone antibiotics, (+)-ochromycinone and (+)-rubiginone B-2, is reported. The key step involves the facile formation of 2,3-dihydrophenantren-4(1H)-one skeleton, an important framework of angucyclinone natural products, by using gold-catalyzed intramolecular [4 + 2] benzannulation reaction.