Cycloprop-2-ene carboxylic acid

Cycloprop-2-ene carboxylic acid
Names
	Systematic IUPAC name Cycloprop-2-ene-1-carboxylic acid[1]
Identifiers
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL1213481 ;
ChemSpider	21782462 ;
PubChem CID	25241629;
	InChI InChI=1S/C4H4O2/c5-4(6)3-1-2-3/h1-3H,(H,5,6) Key: DBWAQSJZNKRLLE-UHFFFAOYSA-N ;
	SMILES C1(C=C1)C(=O)O;
Properties
Chemical formula	C4H4O2
Molar mass	84.074 g·mol−1
log P	-0.816
Acidity (pKa)	4.246
Basicity (pKb)	9.751
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Cycloprop-2-ene carboxylic acid is a mycotoxin found in some mushrooms such as Russula subnigricans.[2]

When ingested, the molecule is known to cause rhabdomyolysis.[2]

In mice, the oral LD₅₀ of this molecule is 2.5 mg/kg and poisoning is indicated by an increase in serum creatine phosphokinase activity. Polymerization via the ene reaction abolishes toxicity.[2]

3-(Cycloprop-2-en-1-oyl)oxazolidinones are a class of ‘unusually stable’ derivatives of cycloprop-2-ene carboxylic acid that have been synthesized by Fox et al. As mentioned by Fox et al, this class of ‘unusually stable’ derivatives are dienophiles when involved in Diels-Alder Reaction.[3]

References

"NChemBio.179-comp1". The PubChem Project. USA: National Center for Biotechnology Information.
Matsuura, Masanori; Saikawa, Yoko; Inui, Kosei; Nakae, Koichi; Igarashi, Masayuki; Hashimoto, Kimiko; Nakata, Masaya (2009). "Identification of the toxic trigger in mushroom poisoning". Nature Chemical Biology. 5 (7): 465–7. doi:10.1038/nchembio.179. PMID 19465932.
Yan, Ni; Liu, Xiaozhong; Pallerla, Mahesh K.; Fox, Joseph M. (2008-06-01). "Synthesis of Stable Derivatives of Cycloprop-2-ene Carboxylic Acid". The Journal of Organic Chemistry. 73 (11): 4283–4286. doi:10.1021/jo800042w. ISSN 0022-3263. PMC 3132478. PMID 18452335.

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[1] "NChemBio.179-comp1". The PubChem Project. USA: National Center for Biotechnology Information.

[mac-2] Matsuura, Masanori; Saikawa, Yoko; Inui, Kosei; Nakae, Koichi; Igarashi, Masayuki; Hashimoto, Kimiko; Nakata, Masaya (2009). "Identification of the toxic trigger in mushroom poisoning". Nature Chemical Biology. 5 (7): 465–7. doi:10.1038/nchembio.179. PMID 19465932.

[3] Yan, Ni; Liu, Xiaozhong; Pallerla, Mahesh K.; Fox, Joseph M. (2008-06-01). "Synthesis of Stable Derivatives of Cycloprop-2-ene Carboxylic Acid". The Journal of Organic Chemistry. 73 (11): 4283–4286. doi:10.1021/jo800042w. ISSN 0022-3263. PMC 3132478. PMID 18452335.