Exam%202%2008Mar8

Exam%202%2008Mar8 - Spring 2008 4:122 Exam 2 page 1 of 4...

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page 1 of 4 Name___________________________ 1) Draw the indicated structure, being careful to follow the instructions [5 pts each] a) NADH is a biochemical reducing agent. It delivers the equivalent of hydride. Draw the partial structure of NADH using the template at far right. NAD+ is the form of the structure after hydride has been transferred. Partial structure of NAD + Complete the structure of NADH using this template: b) Show the formation of the electrophile for Friedel-Crafts alkylation using 1-chloroethane. (Don’t show addition of the electrophile to a benzene, just its formation.) c) Show ONE resonance structure that most clearly demonstrates why ortho-para products are DISFAVORED when an electrophile E + adds to nitrobenzene. Use the template at right. d) Show ONE resonance structure that most clearly demonstrates why ortho-para products are FAVORED when an electrophile E + adds to phenol (hydroxybenzene). Use the template at right. 1
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This note was uploaded on 02/16/2010 for the course CHEM 122 taught by Professor Pienta during the Spring '08 term at University of Iowa.

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Exam%202%2008Mar8 - Spring 2008 4:122 Exam 2 page 1 of 4...

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