Alkene Addition Reactions and Mechanisms

Vocabulary practice flashcards covering electrophilic additions, stereochemistry, reagents, and mechanisms for alkene reactions.

Free Radical Addition of $HBr$

• Anti markovnikov

• syn or andi additions of H and Br

Hydrohalogenation

• marovnikov

• syn and anti addition

• adds H and Halogen across a double bond

Allylic Bromination

• adds one Br to a molecule right onto the c connected to another c=c

Acid-Catalyzed Hydration

• markovnikov

• adds OH and H across a bond

• syn and anti

• forms a carbocation intermediate that can reorganize

Oxymercuration-Demercuration

• Markovnikov

• adds H and OH across a double bond

• syn and anti addition

Hydroboration

• Anti-Markovnikov

• syn addition

• adds H and OH across a bond

Oxidative Cleavage

• cleaves apart a double bond

• produces c=o bonds

Syn Dihydroxylation

• adds two OH across a double bond

• syn addition

Anti Dihydroxylation

• adds two OH across a double bond

• anti addition

Halogenation

• adds two halogens across a double bond

• anti addidion

Halohydrin Formation

• markovnikov

• adds an OH and Halogen across a double bond

• anti addition

Catalytic Hydrogenation

• addition of two H across a double bond

• syn addidion

Alkoxymercuration-Demercuration

• Markovnikov

• adds H and OR across a double bond

• syn and anti addition

Epoxidation

• make a 3 member cyclic ring with oxygen

Hydration of an epoxide

• converts and epoxide to two OH’s in an anti orientation

alpha elimination

• forms an epoxide with only Cs and 2 halogens on the tip

Simmons–Smith Reaction

forms a triangle structure with only carbons

• hydrohalogenation

• markovnikov

• syn and anti

• adds H and halogen across a double bond

• free Radical HBR addition

• Anti markovnikov

• syn or andit additions of H and Br

• allylic bromination

• adds one Br to a molecule right onto the c connected to another c=c

• Acid catalyzed hydration

• markovnikov

• adds OH and H across a bond

• syn and anti

• forms a carbocation intermediate that can reorganize

• oxymercuration demercuration

• Markovnikov

• adds H and OH across a double bond

• syn and anti addition

• hydroboration

• Anti-Markovnikov

• syn addition

• adds H and OH across a bond

• syn dihydroxylation

• adds two OH across a double bond

• syn addition

• anti dihydroxylation

• adds two OH across a double bond

• anti addition

• hydrogenation

• addition of two H across a double bond

• syn addidion

• Smith simmons

• oxidative cleavage

• cleaves apart a double bond

• produces c=o bonds

• halogenation

• adds two halogens across a double bond

• anti addidion

• epoxidation

• make a 3 member cyclic ring with oxygen

• alpha elimination

• forms an epoxide with only Cs and 2 halogens on the tip

• halohydrin formation

• markovnikov

• adds an OH and Halogen across a double bond

• anti addition

• hydration of an epoxide

• creating OH groups instead of an expoxide

• anti orientation

• alkoxymercuration-demercuration

• Markovnikov

• adds H and OR across a double bond

• syn and anti addition