Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2007	Pre-Quiz 18

(must be done in WebCT before Wed., Mar. 7, 8:30 am)

1. The alpha positions of 2-pentanone are carbon numbers (check all that apply):

* a. 1
b. 2
* c. 3
d. 4
e. 5

2. The number of possible enols of 2-pentanone (including stereoisomers - but not conformers) is

a. 1
b. 2
* c. 3
d. 4
e. more than 4

3. The conjugate addition of lithium dimethylcuprate to cinnamaldehyde would give

a. 3-phenylpropanal
b. 4-phenylbutanal
* c. 3-phenylbutanal
d. 4-phenyl-3-buten-2-one
e. 4-phenyl-2-butanone

4. The mixed aldol condensation between acetone and formaldehyde would give

* a. 4-hydroxy-2-butanone
b. 3-oxobutanal
c. 3-hydroxybutanal
d. acrolein
e. 2-butanone

5. Which one of the following would give a positive iodoform reaction?

a. pentanal
* b. 2-pentanone
c. 3-pentanone
d. benzophenone
e. formaldehyde