Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2006	Pre-Quiz 16

(must be done in WebCT before Mon., Feb. 20, 8:30 am)

1. 12-Crown-4 is a polyether with

a. 12 carbons and 4 oxygens  
* b. 8 carbons and 4 oxygens  
c. 12 C-C bonds and 4 C-O bonds

2. Monensin is a polyether that acts as an

a. antibiotic  
b. ionophore  
c. ion carrier  
d. Na+ complexing agent  
* e. all of the above

3. The Williamson ether synthesis of phenyl methyl ether would best be done using

* a. sodium phenoxide plus methyl iodide  
b. sodium methoxide plus iodobenzene  
c. sodium methoxide plus benzyl iodide

4. Addition of water to cyclopentene oxide will give

a. cyclopentanol  
b. cis-1,2-cyclopentanediol  
* c. trans-1,2-cyclopentanediol  
d. 1,1-cyclopentanediol

5. Methionine is an amino acid that contains the functional group

a. thiol  
* b. sulfide  
c. disulfide  
d. sulfoxide  
e. sulfonium ion  
f. sulfone  
g. sulfonic acid