Weekly Review 6 (Key)

Weekly Review 6 (Key) - Review 6 Weekly Review Lecture Chem...

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Unformatted text preview: Review 6 Weekly Review Lecture Chem S 20ab Explanations: 1) a. The one with the electron donating group is most basic. The one with the electron withdrawing group is least basic. N N N OMe most basic CN least basic b. In the one on the left, the N lone pair is not conjugated with the pi system. This lone pair is therefore most likely to pick up a proton. In the one on the right, the N lone pair is conjugated with a pi system. In the one in the middle, the N lone pair is part of an aromatic pi system, which is even more stabilizing, making it least likely to pick up a proton. Mechanisms: 2) Provide mechanisms for the following reactions. For any pericyclic reactions, describe the type, count the electrons, and explain the observed stereochemistry. a. 4 pi e- CON electrocylcic ring opening b. c. Review 6 Weekly Review Lecture Chem S 20ab d. Review 6 Weekly Review Lecture Chem S 20ab e....
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Weekly Review 6 (Key) - Review 6 Weekly Review Lecture Chem...

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