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