Question

http://i.imgur.com/das3jLA.png

Answer 1

The first one is pretty straight forward

This is one of those cases where carbon is more electronegative as the other element
Lithium is actually less electronegative so there is a negative charge on the carbon atom. I.E. carbanion.



this negative charge is highly unstable, because look. it's going to act more as a base rather than a nucleophile because the nearby alkyl groups are donating electron density to the carbon.

In-fact this is like one of the strongest bases possible and it's going to aggressively pull a proton off anywhere it can. best target is the hydrogen bonded to the nitrogen atom.