Provide an arrow pushing mechanism for the following reaction. Show all intermediate structures and formal charges. You do not need to show resonance structures. 
Definitions:
Lasting Memory
A lasting memory refers to information or experiences that can be retained and recalled for a long period of time.
Transfer of Information
The process of conveying or sharing knowledge, data, or facts from one entity to another.
Levels-of-processing
A theory suggesting that the depth (shallow to deep) of mental processing affects memory recall; deeper levels of analysis lead to better recall.
Craik and Lockhart
Psychologists who developed the Levels of Processing model of memory, which suggests that memory retention depends on the depth of processing.
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