Aromatic chemistry

Question 1

Relative bond length of benzene C-C

Answer 1

Intermediate between C-C (longer) and C=C (shorter)

Question 2

Which mechanism/reaction do Aromatic compounds/Benzene not undergo and why?

Answer 2

Electrophilic addition, ring is very stable and wouldn’t be destroyed

Question 3

Friedel crafts acetylation process

Answer 3

Strongly positive electrophile attacks benzene ring with a halogen carrier used to strengthen the electrophile

Question 4

Example of a halogen carrier and function

Answer 4

AlCl3, carries Cl from Acyl chlordie to produce a RCO+ electrophile

Question 5

Conditions required for mononitration

Answer 5

Temperature must be kept below 55 degrees celsius

Question 6

Reaction creating nitronium ion

Answer 6

HNO3 + H2SO4 –> H2NO3+ +HSO4- –> H2NO3+ –> NO2+ + H2O

Question 7

Nitro compounds can be reduced into ____ which are used in _____

Answer 7

Aromatic amines, Pharmaceuticals and some explosives (trinitrotoluene)