Chapter 25 Flashcards
1
Q
arene
A
an aromatic hydrocarbon like benzene
2
Q
activates
A
causes the benzene/aromatic ring to react more readily with electrophiles
3
Q
pi bonds π-bond
A
A bond formed by the sideways overlap of two p-orbitals, with the electron density above and the plane of the bonding atoms.
4
Q
substituent
A
a substituent is an atom or group of atoms which replaces hydrogen atom on the parent chain of a hydrocarbon
5
Q
halogen carrier
A
Catalyst such as AlCl3 FeCl3 AlBr3 FeBr3
6
Q
2,4 directing
A
-NH2, -NHR
-OH, OR
-R or C6H5
F, Cl, Br, I
7
Q
3 directing
A
RCOR COOR SO3H CHO COOH CN NO2 NR3+
8
Q
Deactivates
A
causes the benzene/aromatic ring to react less readily with electrophiles
9
Q
Directing effect
A
Different groups direct a second substituent to a particular place on the benzene ring
