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For questions involving the nucleophilicity of a chemical species. Not to be confused with "basicity", use the [acid-base] tag instead.

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Reactivity of unsaturated organolithium compounds

I'm particularly looking in the context of alkyl lithiums compared to vinyl-lithiums and alkynyl-lithiums. Why is it that shifting from sp3 to sp2, and even further to sp carbanions, reduces the basic …
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