180912-63-4Relevant academic research and scientific papers
A novel construction of dibenzofuran-1,4-diones by oxidative cyclization of quinone-arenols
Takeya, Tetsuya,Kondo, Hiromu,Otsuka, Tsuyoshi,Tomita, Kazuho,Okamoto, Iwao,Tamura, Osamu
, p. 2807 - 2810 (2008/02/05)
A novel oxidative cyclization of quinone-arenols 5 leading to products 6 with a dibenzofuran-1,4-dione structure, which forms the core of several natural products, has been developed and applied to the synthesis of violet-quinone (4).
Synthesis of various model compounds for the central tricyclic ring system of popolophuanone E
Ueki, Yasuyuki,Itoh, Masanori,Katoh, Tadashi,Terashima, Shiro
, p. 5719 - 5722 (2007/10/03)
An efficient synthesis of various model compounds 4a-e for the tricyclic core of popolophuanone E (1), a novel marine natural product, was accomplished; the method features highly regioselective annulation of the phenols 5a-e with the 2,3-dichloro-1,4-benzoquinones 7, 7c-e. Preliminary studies definitely demonstrated the feasibility of our designed synthetic strategy for 1 (the phenolic subunit I + the quinone subunit II → 1).
