Organic Chemistry II |
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Professor Carl C. Wamser |
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Chem 335 - Winter 2005 |
Chapter 14 Pre-Quiz |
(must be done in WebCT before Mon., Feb. 14, 8:30 am)
1. A Grignard reagent is reactive towards
a. water
b. aldehydes
c. ketones
d. esters
* e. all of the above
2. A carbon intermediate with only two bonds is called a
a. carbocation
b. carbanion
c. free radical
* d. carbene
e. carbenoid
3. Which of the following can act as a nucleophile towards C=O bonds?
a. a Grignard reagent
b. an acetylide anion
c. an alkyllithium
* d. all of the above
e. none of the above
4. Cyclopropane derivatives are conveniently prepared using
a. Grignard reagents
b. cuprates
* c. carbenoids
d. alkyllithiums
e. acetylides
5. It would be possible to synthesize 2-methyl-2-hexanol using
a. methyl magnesium bromide
b. ethyl magnesium bromide
c. propyl magnesium bromide
d. butyl magnesium bromide
e. pentyl magnesium bromide
* f. more than one of the above