6. Electrophilic substitution in aromatic compounds Flashcards
1
Q
electrophilic substitution of phenol with bromine
A
2,4,6-tribromophenol
2
Q
electrophilic substitution of phenol with dilute nitric acid
A
2-nitrophenol
3
Q
observations (bromination of phenol)
A
white precipitate and antiseptic smell
4
Q
where does substitution occur on phenol
OH electron donating group
A
2- and 4- directing affect (2 and 4 C’s activated)
additional electrons in delocalised pi system
5
Q
where does substitution occur on phenylamine
(NH2 electron donating group)
A
2- and 4- directing affect (2 and 4 C’s activated)
additional electrons in delocalised pi system
6
Q
where does substitution occur nitrobenzene
NO2 electron withdrawing
A
3 directing effect (withdraws electrons particularly from 2 and 4)
