Chapter 10: Radicals Flashcards
How is radical halogenation initiated?
heat or light
What is a difference between chlorine and bromine?
Bromine is selective while chlorine is not
Bromine radical addition follows…
markovnikov’s rule
anti-markovnikov
What are the three “processes” of a radical reaction?
Initiation, propagation, termination
What does “hv” in a reaction scheme mean?
light is used to initiate the reaction
Which halogen is the most reactive?
F2
Which halogen is the least reactive?
I2 (does not react)
Why is chlorine more reactive?
The bond breaks easier, causing more unstable radicals that are more likely to react with any hydrogen available
Why are racemic mixtures formed during some radical additions?
A planar radical can be reacted with from the back or front
What reagents can be used for a radical reaction with double bond?
HBR or HBr, ROOR
What does the presence of a peroxide durring radical addition do?
It produces the anti-markovnikov product instead of markovnikov
