in-the-enolization-step-of-n-phthalimidomalonic-ester-synthesis-what-happens-to-

Question

In the enolization step of N-phthalimidomalonic ester synthesis, what happens to the alpha carbon?

Accepted Answer

It is deprotonated by a strong base, forming an enolate anion.

Answer

It is protonated to form a carbocation.

Answer

It is oxidized to form a ketone.

Answer

It undergoes an SN1 reaction to form an enol intermediate.