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Chapter 9 343

Copyright © 2017 Pearson Education, Inc.

105.

a.

We can predict that this is an

S

N

1

reaction because acetate ion is a relatively poor nucleophile.

CH

3

CCH

CH

3

Cl

CHCH

2

CH

3

CH

3

CCH CHCH

2

CH

3

CH

3

+

CH

3

C CHCHCH

2

CH

3

CH

3

+

+

Cl

CH

3

CO

O

CH

3

CCH

CH

3

OCCH

3

CHCH

2

CH

3

O

CH

3

C CHCHCH

2

CH

3

CH

3

OCCH

3

O

+

CH

3

CO

O

b.

We can predict that this is an

S

N

1

reaction because acetate ion is a relatively poor nucleophile.

CH

3

Br

CH

3

+

CH

3

+

+

Br

CH

3

OCCH

O

3

CH

3

CO CH

3

CH

3

CO

CH

3

CO

O

+

O

O

106.

a. 

CH

3

CH

2

CH

2

Br +

CH

3

CH

2

CH

2

CH

2

CH

3

HC C

CH

3

CH

2

CH

2

C CH

H

2

Pd/C

CH

3

CH

2

CH

2

Br + HC C

CH

3

CH

2

CH

2

C CH

H

2

SO

4

, HgSO

4

H

2

O

CH

3

CH

2

CH

2

CCH

3

O

CH

3

CH

2

CH

2

Br + HC C

CH

3

CH

2

CH

2

C CH

1. R

2

BH/THF

2.

CH

3

CH

2

CH

2

Br + HC C

CH

3

CH

2

CH

2

C CH

HO

, H

2

O

2

, H

2

O

CH

3

CH

2

CH

2

CH

2

CH

H

2

Lindlar

catalyst

CH

3

CH

2

CH

2

CH CH

2

RCOOH

CH

3

CH

2

CH

2

CH CH

2

O

O

O

b.

c.

d.