Terminal alkynes ($$ R-C \equiv C-H $$) are weakly acidic:
$$R-C \equiv C-H \rightleftharpoons R-C \equiv C^- + H^+$$pKa β 25, stronger than alkanes/alkenes but weaker than water.
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CAT Formulas
Hydrocarbons - Alkynes
Acidity of terminal alkynes
Terminal alkynes ($$ R-C \equiv C-H $$) are weakly acidic:
$$R-C \equiv C-H \rightleftharpoons R-C \equiv C^- + H^+$$pKa β 25, stronger than alkanes/alkenes but weaker than water.
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