Aromatic Flashcards
(11 cards)
What is benzene?
An aromatic compound consisting of a ring of six hydrogen atoms and a ring of delocalised electrons.
What is the bond length in the benzene ring?
Intermediate length between single and double bond.
What is the calculated bond angle energy for benzene?
360 kJ/mol.
What is the actual enthalpy change for benzene due to delocalised electrons?
208 kJ/mol.
What type of reaction is Electrophilic Substitution?
A reaction where an electrophile replaces a hydrogen atom in an aromatic compound.
What is the general reaction for the formation of Nitrobenzene?
H2SO4 + HNO3 → NO2+ + HSO4- + H2O.
What is Friedel-Crafts Acylation?
A reaction where a delocalised electron ring in benzene acts as a nucleophile to attack acyl chlorides.
What is the general equation for Friedel-Crafts Acylation?
R-COCl + ACl3 → R-CO+ + ACl4-.
What is the product of Friedel-Crafts Acylation?
A phenyl ketone.
What is the role of AlCl3 in Friedel-Crafts Acylation?
It acts as a catalyst.
Complete the reaction: AlCl4- + H+ → _______.
AlCl3 + HCl.
