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Metacyclophanes and related compounds. 26. Tetrahydroxy[2.n.2.n]metacyclophanes. Preparation, reactions, and spectra

✍ Scribed by Tashiro, Masashi; Tsuge, Akihiko; Sawada, Tsuyoshi; Makishima, Toshihiro; Horie, Seiji; Arimura, Takashi; Mataka, Shuntaro; Yamato, Takehiko

Book ID: 125509181
Publisher: American Chemical Society
Year: 1990
Tongue: English
Weight: 830 KB
Volume: 55
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo00295a031

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## Abstract The title compounds, [n.2]metacyclophanediquinones 6a‐f, were prepared by oxidation of the corresponding di‐__tert__‐butyldihydroxy[n.2]metacyclophanes 5a‐f with Tl(OCOCF~3~)~3~ in CF~3~COOH. When [n.2]quinonophanes 6a‐e were reduced with Zn powder in acetic acid, the corresponding tetr