Cyclopentadienone is an
organic compound
In chemistry, organic compounds are generally any chemical compounds that contain carbon- hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. Th ...
with
molecular formula
In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, ...
C
5H
4O. The parent cyclopentadienone is rarely encountered, because it rapidly
dimerizes. Many substituted derivatives are known, notably
tetraphenylcyclopentadienone. Such compounds are used as ligands in
organometallic chemistry.
left, The Knölker complex, derived from a substituted cyclopentadienone, is a catalyst for transfer hydrogenation.
Preparation
Cyclopentadienone can be generated by the photolysis or pyrolysis of various substances (e.g. 1,2-benzoquinone), and then isolated in an matrix isolation, argon matrix at . It dimerizes readily upon thawing the matrix at .
See also
*
Dienone
References
Ketones
Fully conjugated nonaromatic rings
{{ketone-stub
