what-is-the-significance-of-converting-betaine-to-oxaphosphetane-in-the-wittig-r

Question

What is the significance of converting betaine to oxaphosphetane in the Wittig reaction?

Accepted Answer

It facilitates the elimination step, forming the desired alkene.

Answer

It enhances the solubility of the intermediate compound.

Answer

It produces a stable carbocation for subsequent reactions.

Answer

It stabilizes the reaction by forming a ketone.