Radical Halogenation

first step of radical halogenation

initiation

In initiation, both radicals are on the (left/right) side of the equation.

right

second step of radical halogenation

propagation

In propagation, the radicals are on (opposite/same) sides.

opposite

third step of radical halogenation

termination

In termination, both radicals are on the (left/right) side of the equation.

left

Bromination steps prefer (primary/secondary/tertiary) carbons.

tertiary

The ratio for chlorination is..
primary:secondary:tertiary = 1:___:___

4, 5

The ratio for bromination is…

primary:secondary:tertiary: = 1:___:___

80, 1700

The least selective halogen is:

fluorine

The most selective halogen is:

iodine

The ratio for fluorination is…
primary:secondary:tertiary = 1:___:___

1.2, 1.4

Fluorine is the least selective because the reaction is very (exothermic/endothermic).

exothermic

Exothermic reactions tend to have (large/small) activation energies and (late/early) transition states that resemble the (reactants/products).

small, early, reactants