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Addition of H-X
Write the final product and the mechanism. Is there stereo or regiochemistry?
Markovnikov regio

Hydration (assisted addition)
Markovnikov regio

Halogenation (addition of X2)
Anti stereo

Halohydrins (addition of X-OH)
Anti stereo

Hydroboration oxidation
Anti-Markovnikov regio, syn stereo

Catalytic hydrogenation (addition of H2)
Syn stereo
REMEMBER to write the catalyst

Epoxidation
Syn stereo

Opening of an epoxide (in basic/acidic conditions)
Show the mechanism for both basic and acidic conditions
Anti stereo
Deprotonation requires another step (acidic conditions results in an extra intermediate)

Hydroxylation with OsO4 (osmium tetroxide)
Only need to know 1st step
Syn stereo

Cyclopropane formation
What provides the carbene?
Syn stereo

Addition of a haloform / dihalocarbene
Show how the dihalocarbene is made
Syn stereo

Ozonolysis
3 intermediates, 1st is melozonide and 3rd is ozonide

Radical reaction (polymerization)
How does it terminate?
Make sure radical goes on more substituted carbon