Organic Chemistry II

Professor Carl C. Wamser

Chem 335 - Winter Term

Pre-Quiz 10

(must be done in Blackboard before Wed., Jan. 6, 8:30 am)

1. Which of the following would be classified as an allylic bromide?

a. 1-bromo-1-pentene
b. 2-bromo-1-pentene
* c. 3-bromo-1-pentene
d. 2-bromo-2-pentene
e. 3-bromo-2-pentene

2. The number of vinylic and allylic hydrogens in 1,2-dimethylcyclohexene are

* a. 0 vinylic, 10 allylic
b. 2 vinylic, 4 allylic
c. 2 vinylic, 6 allylic
d. 0 vinylic, 4 allylic
e. 4 vinylic, 6 allylic

3. An example of a conjugated diene is

a. 1,2-octadiene
* b. 1,3-octadiene
c. 1,4-octadiene
d. 1,5-octadiene
e. 1,7-octadiene

4. Conjugate addition of HBr to 1,3-cyclopentadiene would give

a. 1-bromocyclopentene
b. 2-bromocyclopentene
* c. 3-bromocyclopentene
d. 4-bromocyclopentene
e. 5-bromo-1,3-cyclopentadiene

5. The Diels-Alder reaction of maleic anhydride with 1,3-butadiene gives a cycloaddition product with the molecular formula of

a. C6 H6 O3
* b. C8 H8 O3
c. C6 H8 O3
d. C8 H10 O3
e. C8 H12 O3


1-Bromocyclopentene