Organic Chemistry II

Professor Carl C. Wamser

Chem 335 - Winter Term

Pre-Quiz 16

(must be done in D2L before Mon., Feb. 20, 8:30 am)

1. Another name for tert-butyl methyl ether would be

a) 1-methoxybutane

b) 2-methoxybutane

* c) 2-methoxy-2-methylpropane

d) 2-methoxy-2,2-dimethylpropane

2. 18-crown-6 is a polycyclic ether with

a) 18 carbons and 6 oxygens

b) 6 carbons and 18 oxygens

* c) 12 carbons and 6 oxygens

d) 6 carbons and 12 oxygens

3. An effective Williamson ether synthesis for tert-butyl benzyl ether would use

a) sodium phenoxide + tert-butyl bromide

b) sodium benzyloxide + tert-butyl bromide

c) sodium tert-butoxide + bromobenzene

* d) sodium tert-butoxide + benzyl bromide

4. Addition of water to the epoxide made from cyclopentene will give

a) cyclopentanol

b) 1,1-cyclopentanediol

c) cis-1,2-cyclopentanediol

* d) trans-1,2-cyclopentanediol

5. The trimethyl sulfonium cation can be prepared from dimethyl sulfide plus

* a) methyl iodide

b) methanol

c) dimethyl ether

d) ethylene oxide