ALKENE ADDITION REACTIONS

status: beta

unverified

Introduction

This page focuses on reactions that work with carbon-carbon double bonds.

Mechanisms

Hydrohalogenation

Markovnikov addition of H and X (Cl, Br, I) across a double bond. Carbocation rearrangements are possible.

Anti-Markovnikov addition of H and X (Cl, Br, I) across a double bond (radical mechanism)

Hydration

Acid-catalyzed Markovnikov addition of H and OH across a double bond. Carbocation rearrangements are possible. Use dilute H2SO4 to promote hydration over elimination.

Oxymercuration-demercuration (Markovnikov). Carbocation rearrangements are NOT possible.

Hydroboration-oxidation (anti-Markovnikov, syn addition).

Catalytic hydrogenation

Halogenation

Bromination

Halohydrin formation

Anti-dihydroxylation

Syn-dihydroxylation

Ozonolysis