Pulvinic acid

Pulvinic acid
Names

IUPAC name (2E)-(5-Hydroxy-3-oxo-4-phenyl-2(3H)-furanylidene)(phenyl)acetic acid
Identifiers
ChemSpider	2299472
InChI InChI=1S/C18H12O5/c19-15-13(11-7-3-1-4-8-11)18(22)23-16(15)14(17(20)21)12-9-5-2-6-10-12/h1-10,22H,(H,20,21)/b16-14+ Key: WFZQEWXZFDGFEP-JQIJEIRASA-N InChI=1/C18H12O5/c19-15-13(11-7-3-1-4-8-11)18(22)23-16(15)14(17(20)21)12-9-5-2-6-10-12/h1-10,22H,(H,20,21)/b16-14+ Key: WFZQEWXZFDGFEP-JQIJEIRABX
Jmol-3D images	Image
PubChem	3035166
SMILES O=C(O)C(=C2/OC(/O)=C(/c1ccccc1)C2=O)/c3ccccc3
Properties
Molecular formula	C₁₈H₁₂O₅
Molar mass	308.28 g·mol⁻¹
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Pulvinic acid is a natural chemical pigment found in some lichens.^[1] Dimers of pulvinic acid have been found in the fungi Scleroderma citrinum and Chalciporus piperatus.^[2]

References

↑ Bourdreux, Yann; Bodio, Ewen; Willis, Catherine; Billaud, Célia; Le Gall, Thierry; Mioskowski, Charles (2008). "Synthesis of vulpinic and pulvinic acids from tetronic acid". Tetrahedron 64 (37): 8930. doi:10.1016/j.tet.2008.06.058.
↑ Winner M, Giménez A, Schmidt H, Sontag B, Steffan B, Steglich W. (2004). "Unusual pulvinic acid dimers from the common fungi Scleroderma citrinum (common earthball) and Chalciporus piperatus (peppery bolete)". Angewandte Chemie 43 (14): 1883–6. PMID 15054803.