2,2'-Dibromobiphenyl is used to produce 5,5-dimethyl-5H-dibenzosilole at the temperature of -78 - 20°C. It will need reagent n-BuLi and solvents diethyl ether, hexane.
Herny Gilman, Bernard Gaj. Notes - Coupling Reactions with Some Organolithium Compounds in Tetrahydrofuran. J. Org. Chem. 1957, 22, (4), 447-449.
M.D. Rausch.; G.A. Moser.; C.F. Meade. The isolation, characterization and synthetic utility of several solid organolithium compounds. Journal of Organometallic Chemistry. 1973, 51, 1-11.
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