Give a mechanism for each of the following reactions, which take place in several steps. Use the

Question:

Give a mechanism for each of the following reactions, which take place in several steps. Use the curved-arrow notation. Use only Lewis acid-base associations, Lewis acid-base dissociations, and Brpnsted acid-base reactions in your mechanism, and write one reaction per step. Identify Brpnsted bases, nucleophiles, electrophiles, and leaving groups.