Transcript ppt_ch15

Chapter Fifteen
Aldehydes
And Ketones
Aldehydes and Ketones
→ CO 15.1
Benzaldehyde is the
main flavor component
of almonds.
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Aldehydes and Ketones cont’d
← Fig. 15.1
Aldehydes and ketones
are related to alcohols
in the same manner
that alkenes are related
to alkanes.
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Aldehydes and Ketones cont’d
← Fig. 15.2
Benzaldehyde, the
simplest aromatic
aldehyde.
.
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Aldehydes and Ketones cont’d
←C.C 15.1
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Aldehydes and Ketones
→ Fig. 15.3
Aldehydes and ketones
with the same number
of carbon atoms and
the same degree of
saturation are structural
isomers.
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Aldehydes and Ketones cont’d
← Fig. 15.4
Formalin is used to
preserve biological
specimens.
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Aldehydes and Ketones cont’d
← Table 15.1
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Aldehydes and Ketones
→ Fig. 15.5
The delightful odor of
melted butter is largely
due to butanedione.
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Aldehydes and Ketones cont’d
← Table 15.2
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Aldehydes and Ketones cont’d
← Fig. 15.6
Physical-state summary
for unbranched aldehydes
and unbranched 2-ketones
at room temperature and
pressure.
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Aldehydes and Ketones cont’d
←CC 15.2
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Aldehydes and Ketones
Fig. 15.7
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Aldehydes and Ketones
Table 15.3
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Aldehydes and Ketones
CC 15.3 Diabetes, aldehyde oxidation, and glucose testing
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Aldehydes and Ketones cont’d
Figs. 15.8 a-c
(a) An aqueous
solution of ethanal is
added to a solution of
silver nitrate.
(b) The solution
darkens as ethanal is
oxidized to ethanoic
acid.
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(c) The inside of the
beaker becomes
coated with metallic
silver.
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Aldehydes and Ketones
→ Fig. 15.9
Benedict’s solution
turns brick red when an
aldehyde reacts with it.
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Aldehydes and Ketones cont’d
Fig. 15.10
Acetaldehyde and its hemiacetal and acetal formed by
reaction with ethyl alcohol.
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Aldehydes and Ketones
Fig. 15.11
When a mixture of phenol and formaldehyde dissolved in acetic
acid is treated with concentrated hydrocloric acid, a cross-linked
phenolformaldehyde network polymer is formed.
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Aldehydes and Ketones
 CC 15.4
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Aldehydes and Ketones cont’d
← Fig. 15.12
Bakelite jewelry in use
during the 1930-1950
time period.
© Coco McCoy / Rainbow
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