Include the following information for the following reaction:

1. The assigned reaction, the main product and a description of the substrate (methyl 1, 2, 3), the nucleophile (strong, weak, strong base, weak base), the solvent (polar protic, polar aprotic), the outgoing group (good or bad) and the stereochemistry of the product.

2. A drawing of the mechanism identifying the reagents (the electrophile, the nucleophile), the(s) species(s) intermediate(s) (if applicable) and the main product. The mechanism shall show the movement of electrons with arrows. The stereochemistry of the product shall be indicated by a three-dimensional drawing.

3. The reaction energy profile where the relative stability of the reagents, transition state(s), intermediate species (if applicable) and main product shall be included. It must include a drawn profile with a broken line for the alternate mechanism.

Br DMSO - 4. HC HC