Abstract
Reaction of lithium phenylacetylide with the complex BuLi–ButOK in a mixture of tetrahydrofuran and hexane leads to the ortho-metallated phenylacetylide; subsequent addition of methyl iodide, dimethyl disulphide, trimethylchlorosilane, and selenium gives the corresponding ortho-substituted phenylacetylenes and benzoselenophen.
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