Compounds having the structure
R2C(OR')2
(
R' ≠
H )
and thus diethers of geminal
diols. Originally, the term was confined to derivatives of
aldehydes
(one
R
=
H),
but it now applies equally to derivatives of
ketones
(neither
R
=
H ).
Mixed acetals have different
R'
groups.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1310