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Paper | Regular issue | Vol 53, No. 1, 2000, pp.49-53
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8713
An Alternative Route for the Preparation of 1-Benzostannepines, 1-Benzostibepines and 1-Benzosilepines via Te-Li Exchange of 1-Benzotellurepines

Haruki Sashida*

*Faculty of Pharmaceutical Science, Hokuriku University, School of Pharmacy, 3-Ho, Kanagawa machi, Kanazawa 920-1181, Japan

Abstract

Treatment of 1-benzotellurepines (1) with t-BuLi in the presence of TMEDA in ether followed by addition of a metal reagent (Cl2SnBu2, Cl2SbPh and Cl2SiMe2) afforded the corresponding 1-benzostannepines (4), 1-benzostibepines (5) and 1-benzosilepines (6), respectively, in one pot via the tellurium - lithium exchange.