Cyclopentanepentone

Cyclopentanepentone
Systematic name Cyclopentane-1,2,3,4,5-pentone[1]
Other names Leuconic acid
Identifiers
CAS number	3617-57-0 Y
PubChem	12305030
ChemSpider	16788087 N
Jmol-3D images	Image 1
SMILES O=C1C(=O)C(=O)C(=O)C1=O
InChI InChI=1S/C5O5/c6-1-2(7)4(9)5(10)3(1)8 N Key: YVVXMBHAKNKELS-UHFFFAOYSA-N N
Properties
Molecular formula	C5O5
Molar mass	140.05 g mol−1
Exact mass	139.974573110 g mol−1
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Cyclopentanepentone, also known as leuconic acid, is a hypothetical organic compound with formula C₅O₅, the fivefold ketone of cyclopentane. It would be an oxide of carbon (an oxocarbon), indeed a pentamer of carbon monoxide.

As of 2000, the compound had yet to be synthesized in bulk, but there have been reports of trace synthesis.^[2][3][4]

Related compounds

Cyclopentanepentone can be viewed as the neutral counterpart of the croconate anion C₅O₅²⁻.

The compound referred to in the literature and trade as "cyclopentanepentone pentahydrate" (C₅O₅·5H₂O) is probably decahydroxycyclopentane (C₅(OH)₁₀).^[3][5]

References

1. ^ "CID 12305030 - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information. http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=12305030&loc=ec_rcs. 
2. ^ Rubin, Mordecai B.; Gleiter, Rolf (2000). "The Chemistry of Vicinal Polycarbonyl Compounds". Chemical Reviews 100 (3): 1121. doi:10.1021/cr960079j. PMID 11749259. 
3. ^ ^{a b} Gunther Seitz; Peter Imming (1992). "Oxocarbons and pseudooxocarbons". Chemical Reviews 92 (6): 1227–1260. doi:10.1021/cr00014a004. 
4. ^ Detlef Schröder, Helmut Schwarz, Suresh Dua, Stephen J. Blanksby and John H. Bowie (1999). "Mass spectrometric studies of the oxocarbons CnOn (n = 3–6)". International Journal of Mass Spectrometry 188: 17–25. doi:10.1016/S1387-3806(98)14208-2. 
5. ^ Person, Willis B.; Williams, Dale G. (1957). Journal of Physical Chemistry 61 (7): 1017. doi:10.1021/j150553a047. 

See also

• Cyclohexanehexone