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A novel construction of dibenzofuran-1,4-diones by oxidative cyclization of quinone-arenols.

Organic letters (2007-06-22)
Tetsuya Takeya, Hiromu Kondo, Tsuyoshi Otsuka, Kazuho Tomita, Iwao Okamoto, Osamu Tamura
ABSTRACT

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).

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Tetrachloro-1,4-benzoquinone, 99%

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