Organic Chemistry III

Professor Carl C. Wamser

Chapter 18 Pre-Quiz

Chem 336 - Spring 2005

(must be done in WebCT before Mon., April 4, 8:30 am)

1. The name for the enol of 3-pentanone would be

a. 1-penten-2-ol 
b. 2-penten-2-ol 
* c. 2-penten-3-ol 
d. 3-penten-3-ol 
e. 4-penten-3-ol

2. At equilibrium, the enol form of acetone is about what percent of the total amount of acetone present?

a. 50%  
b. 10%  
c. 1%  
d. 0.1%  
* e. < 0.1%

3. An exchange process in basic D2O will put how many D atoms onto 2-pentanone?

a. 2  
b. 3  
c. 4  
* d. 5  
e. 6

4. The product 3-hydroxy-1-phenyl-1-propanone could be made by a mixed aldol condensation between acetophenone and

* a. formaldehyde  
b. acetaldehyde  
c. propanal  
d. acetone  
e. benzaldehyde

5. Conjugate addition of lithium dimethylcuprate adds a methyl group to which position of 2-cyclopentenone?

a. 1  
b. 2  
* c. 3  
d. 4  
e. 5