What is the pKa of cyclopentadiene?
conjugate base is aromatic - aromatic stabilisation is significant
What is the pKa of but-2-yne?
internal alkyne - the C-H bond is sp3 - less stablisation of the negative charge
What is the pKa of water?
This is called a(n) __________ group
This is a(n) _______ disubstituted benzene
This is a(n) _________ disubstituted benzene
This is a(n) ________ disubstituted benzene
This is called a(n) _________ group
This is called a(n) ________ group
Activating groups are electron ____________ groups
they help stabilise the carbocation
Deactivating groups are electron ____________ groups
they destabilise the carbocation
This is a(n) ________ group
This is a(n) _________ group
Activating groups (electron donating groups) direct ___________
Deactivating groups (electron withdrawing groups) direct ___________
Deactivating groups direct meta. What is the only exception to this rule?
they're deactivating but they actually diect ortho/para
Activating groups __________ the rate of the reaction whereas deactivating groups ____________ the rate of the reaction
What is the pKa of phenol?