A Convenient Synthesis of Functionalized Dibenzotellurophenes and Related Compounds via the Intramolecular Telluro Coupling Reaction. The Positive Effect of …

H Suzuki, T Nakamura, T Sakaguchi…

Index: Suzuki, Hitomi; Nakamura, Tohru; Sakaguchi, Tohru; Ohta, Kohji Journal of Organic Chemistry, 1995 , vol. 60, # 16 p. 5274 - 5278

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Citation Number: 12

Abstract

Nitro-containing dibenzotellurophenes and related compounds, which are otherwise laborious to obtain, were prepared by the reaction of 2, 2'-diiodobiphenyl derivatives with an in situ prepared tellurium-copper slurry. Partial reduction of 3, 7-dinitrodibenzotellurophene using hydrazine hydratdpalladium on charcoal led to 3-amino-7-nitrodibenotellurophene, which was found to exhibit a relatively large third-order molecular hyperpolarizability y ( ...