friedal crafts reactions of benzene Flashcards
1
Q
what are friedal crafts reactions for?
A
- attaching substituents to benzene rings
- via electrophilic substitution
2
Q
what is alkylation?
A
substitution of an alkyl onto benzene, producing an alkyl arene
3
Q
what catalysts are used for these reactions?
A
AlCl3 or FeCl3
4
Q
formation of electrophile in alkylation
A
C2H5Cl + AlCl3 –> AlCl4- + C2H5+
5
Q
electrophilic attack in alkylation
A
- C2H5+ accepts electron
- H+ loses electron to cloud
6
Q
what is acylation?
A
- substitution of acyl onto benzene, producing phenylketyones
7
Q
what is an acyl group?
A
carbon bonded to R group with a single bond and O with double bond
