Illustrated Glossary of Organic Chemistry
Pyran (4
H
-pyran):
A
heterocyclic
vinylic
ether
of
molecular formula
C
5
H
6
O having the
structure
shown below, or a
molecule
containing this
moiety
.
Molecular structure
of pyran.
Note the
sp
2
hybridization
of the oxygen atom.
Related terms:
Furan
,
tetrahydrofuran
,
THF
,
monosaccharide
,
pyranose
,
furanose
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