Illustrated Glossary of Organic Chemistry
Ketal:
The
acetal
of a
ketone
. A contraction of
ket
one
and
ace
tal
. Although useful to differentiate an
aldehyde
acetal
from a
ketone
acetal
, 'ketal' has fallen out of use.
Ketone
Ketal
A generalized scheme illustrating the relationship between a
ketone
and the corresponding ketal.
Acetophenone
Cyclic
ketal
A
cyclic
ketal of
acetophenone
can be
synthesized
by reaction of
acetophenone
with
ethylene glycol
(
HOCH
2
CH
2
OH
) and
p
-toluenesulfonic acid
(
TsOH
)
catalysis
.
Related terms:
Ether
,
orthoester
,
hemiketal
,
protecting group
,
cat.
,
R group
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