Organic Chemistry II |
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Professor Carl C. Wamser |
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Chem 335 - Winter 2005 |
Chapter 12 Pre-Quiz |
(must be done in WebCT before Fri., Feb. 4, 8:30 am)
1. The activating substituent in the list below is
a. CN
* b. OCH3
c. Cl
d. NO2
e. COOH
2. The meta-directing substituent in the list below is
a. F
b. Br
c. CH3
d. OCH3
* e. COOH
3. The preferred position for electrophilic substitution on pyrrole is
a. 1
* b. 2
c. 3
d. 4
4. An example of regioselectivity is
a. toluene reacting faster than benzene
* b. para product forming faster than meta
5. The preparation of p-nitrotoluene is best done by
a. nitration followed by methylation
* b. methylation followed by nitration