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IUPAC name [1]Benzoxolo[3,2-c]chromen-6-one
CAS number 479-12-9
PubChem 638309
Molecular formula C15H8O3
Molar mass 236.22 g mol-1
Melting point

187-188 °C[1]

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Coumestan is an organic compound that is a derivative of coumarin. Coumestan forms the central core of a variety of natural compounds known collectively as coumestans. Coumestans, including coumestrol, a phytoestrogen, are found in a variety of plants.

Because of the estegenic activity of some coumestans, a variety of syntheses have been developed that allow the preparation of coumestans so that their pharmacological effects can be explored.[2][3]



  1. ^ Singh, Rishi Pal; Singh, Daljeet (1985). "An elegant synthesis of 6H-benzofuro[3,2-c][1]benzopyran-6-ones". Heterocycles 23 (4): 903.
  2. ^ Yao, Tuanli; Yue, Dawei; Larock, Richard C (2005). "An Efficient Synthesis of Coumestrol and Coumestans by Iodocyclization and Pd-Catalyzed Intramolecular Lactonization". Journal of Organic Chemistry 70 (24): 9985-9989.
  3. ^ Takeda, Norihiko; Miyata, Okiko; Naito, Takeaki (2007). "Efficient synthesis of benzofurans utilizing [3,3]-sigmatropic rearrangement triggered by N-trifluoroacetylation of oxime ethers: short synthesis of natural 2-arylbenzofurans". European Journal of Organic Chemistry (9): 1491-1509.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Coumestan". A list of authors is available in Wikipedia.
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