Organic Chemistry

(Dana P.) #1

836 CHAPTER 19 Carbonyl Compounds III



  1. Indicate how each of the following compounds could be synthesized from the given starting material and any other necessary
    reagents:


a. d.

b. e.

c. f.


  1. Bupropion hydrochloride is an antidepressant marketed under the trade name Wellbutrin®. Propose a synthesis of bupropion
    hydrochloride, starting with benzene.

  2. What reagents would be required to carry out the following transformations?

  3. Give the products of the following reactions:


a.

b.


  1. a. Show how the amino acid alanine can be synthesized from propanoic acid.


b. Show how the amino acid glycine can be synthesized from phthalimide and diethyl 2-bromomalonate.

CH 3 CHCO−

O

+NH
3
alanine

CH 2 CO−

O

+NH
3
glycine

CH

CH

+

O O

O O

HO−

2 CH 3 CH 2 OCCH 2 CH 2 COCH 2 CH 3

O O


  1. CH 3 CH 2 O−

  2. H 3 O+


O O

CH CH CHCCH 3

O

CH CHCO−

O

CH CHCOCH 2 CH 3

CCHCH 3
+NH
2 C(CH 3 ) 3 Cl


O

Cl

bupropion hydrochloride

O O

O
(CH 2 ) 2 CH 3
CH 3 CH 2 OC(CH 2 ) 4 COCH 2 CH 3

CCH 2 CH 3

O

CCH 2 CH 2 CH 2 COH

OO

O O

O

O

CH 3 CCH 2 COCH 2 CH 3

O O

CH 3 CCH 2

CH 3 C(CH 2 ) 3 COCH 3

O O CH 3
CH 3

O

O

O

CH 3 CCH 3

OO

CH 3 CCH 2 CH
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