Organic Chemistry: Sn2E2 Reactions

This is an intramolecular S_N2 ring formation The nitrogen molecule is a good nucleophile, and acetone is a polar, protic solvent.

Neither product will be formed. There are no β -hydrogens, so E2 cannot occur. S_N2 is impossible because the tert-butyl groups are much too bulky to allow backside attack.