Alkenes Flashcards
1
Q
Alkenes+electrophiles react by
A
Addition reaction
2
Q
Alkenes react with bromine by
A
Electrophilic addition
At room temperature
3
Q
Electrophilic addition
A
-ve charge attracts electrophiles
Pi bonds break and whole attacking species is added, thus saturating
Typically, attacker’s H forms CH₃
4
Q
Markonikov’s rule
A
H joins least substituted C during HX addition to alkenes
5
Q
Alkene oxidation
A
By cold, aqueous KMnO4 & NaOH
Become diols
6
Q
Epoxide rings
A
Alkenes + air = epoxyethane
Easily broken via hydrolysis. Becomes ethane-1,2-diol
