ALKYNE ADDITION REACTIONS

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Introduction

This page focuses on reactions that work with carbon-carbon triple bonds. For formation of triple bonds, see Formation of Alkynes

Mechanisms

Hydrogenation

Catalytic hydrogenation with platinum, palladium, or nickel to form the alkane.

Catalytic hydrogenation with H2 and Lindlar's catalyst to form the cis alkene.

Catalytic hydrogenation with H2 and Lindlar's catalyst to form the trans alkene.

Mercuration-Hydration

Acid-catalyzed Markovnikov hydration of a terminal alkyne.

Hydroboration-Oxidation

Anti-Markovnikov hydration of a terminal alkyne.

Halogenation

Reaction of an alkyne with excess X2.

Reaction of an alkyne with one equivalent of X2.

Ozonolysis

Ozonolysis of an internal alkyne.

Ozonolysis of a terminal alkyne to produce a carboxylic acid and carbon dioxide.

Alkylation of terminal alkynes