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■ Chemistry on Benzopentathiepin. Reactios of Benzopentathiepin with Aromatic Compounds in the Presence of Lewis Acid

Ryu Sato,* Akira Onodera, Takehiko Goto, and Minoru Saito

*Department of Applied Chemistry, Faculty of Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan

Abstract

Benzopentathiepin (BPT) reacted with many aromatic compounds such as benzene, 1,4-dimethylbenzene, and naphthalene in the presence of Lewis acid to give various thianthrenes in moderate yields. BPT was found to serve as a 1,4-dication synthon.