wu remembering Flashcards
(7 cards)
1
Q
describe hybridisation in an e- poor aromatic
A
- e- poor and p for poor so u have 1e- in the p orbital
- u have 2e- in the sp2 orbital so u can use this as a nuc
- u cant conjugate the e- around
2
Q
describe hybrisisation in an e- rich aromatic
A
e- rich so 2e- in the p orbital so the lone pair can be conjugated
- 1 in the sp2 orbital
3
Q
e- rich can add electrophile where
A
add in C2 or C3,, any carbon is the same but we lows prefer C2 bc theres more resonance structures for it
it = the + charge
4
Q
e- poor can add an electrophile where
A
on C3,, bc the + will then be on the C and not the N,, and N is an EWG so we dont want it to be positive.
5
Q
indole,, where do we want the electrophile added
A
lowks C3 or C2,, we dont want to break aromaticity.
6
Q
N is pyridine is what directing
A
METAAAA
7
Q
an OMe in pyridine is what directing
A
paraaaaa
