Organic Chemistry Alkane Reactions Flashcards Preview

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Flashcards in Organic Chemistry Alkane Reactions Deck (12):

Compare increasing carbon chains to melting and boiling point.

As the carbon chain increases, the boiling and the melting point increase.


Describe the relationship between branching and boiling point.

As branching increases then boiling point decreases.


Describe free radial stability

Tertiary is the most stable, while primary is the least stable.


Describe the initiation step of free radical halogenation

The halogen is struck by light which results in a homolytic cleavage of the halogen. You go from 0 radials to two radicals.


Describe the propagation step of free radical halogenation

The radical takes a H bond from an alkane. You go from 1 radical to another radical.


Describe the termination step of free radical halogenation

Two radicals bind together to form a stable molecule. You go from two radicals to zero radicals.


Contrast bromination and chlorination.

Bromination occurs slower and is more specific for tertiary.
Chlorination occurs faster and is less specific where it binds


E2 reactions

- higher temperature than sn2
- bulky base to take a hydrogen
- anti position elimination which leads to cis/trans


E1 reaction

- acid with higher temperatures
- formation of a carbocation (rearrangement)


Electrophilic addition

Pi bond electrons attack an electrophile.
Creates a positive carbocation on stable carbon.


Markovnikov's Rule

Carbocation is at the most stable position.


Syn vs Anti

Syn is being added to the same side.
Anti is being added to opposites sides.