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Addition Reactions of Alkynes. Reduction to AlkanesReduction to AlkenesSyn addition via poisoned catalystsAnti addition via alkali metal/liquid ammoniaHydrogen halide additionHydration - Ketone/Aldehyde formation via tautomerizationHalogenation. Alkyne Reductions. Hydrogen Halide Addition to Alkynes.
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1. Alkyne Reactions Addition
Substitution
Diels-Alder
Cleavage
2. Addition Reactions of Alkynes Reduction to Alkanes
Reduction to Alkenes
Syn addition via poisoned catalysts
Anti addition via alkali metal/liquid ammonia
Hydrogen halide addition
Hydration - Ketone/Aldehyde formation via tautomerization
Halogenation
3. Alkyne Reductions
4. Hydrogen Halide Addition to Alkynes Heteroatom stabilized carbocation intermediates
5. Hydration of Alkynes Keto-enol tautomerization
6. Halogenation of Alkynes Formation of Vicinal tetrahalides
7. Substitution Alkynyl Anion Synthesis of Alkynes via Bimolecular Nucleophilic Substitution
8. Diels-Alder Reaction Six-membered Ring formation (4+2)
Diene + Dienophile
9. Cleavage Reactions of Alkynes