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Crystal Structure of 3,4-Dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano[3,2-c]chromen-2-one

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Abstract

A new polymorph of 3,4-dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano[3,2-c]chromen-2-one (pyranocoumarin) was studied by X-ray diffraction. The crystallographic parameters of the structure of C20H18O4 are M = 322.34, sp. gr. C2/c, a = 23.542(1) Å, b = 8.4938(3) Å, c = 19.7804(8) Å, β = 125.977(3)°, Z = 8.

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ACKNOWLEDGMENTS

We are grateful to N.P. Sergeyuk and Yu.I. Pokhodzei for help in obtaining toxicological data.

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Authors and Affiliations

  1. MIREA—Russian Technological University (Lomonosov Institute of Fine Chemical Technologies), 119571, Moscow, Russia

    A. N. Kochetov & L. A. Nosikova

  2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    L. G. Kuz’mina

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  1. A. N. Kochetov
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  2. L. A. Nosikova
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  3. L. G. Kuz’mina
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Correspondence to A. N. Kochetov.

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Translated by T. Safonova

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Kochetov, A.N., Nosikova, L.A. & Kuz’mina, L.G. Crystal Structure of 3,4-Dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano[3,2-c]chromen-2-one. Crystallogr. Rep. 65, 721–725 (2020). https://doi.org/10.1134/S1063774520050119

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