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S. Roseman, C. F. Heubuer, R. Pankratz and K. P. Link, “Studies on 4-Hydroxy Coumarins. XVI. The Metabolism of 4-Hydroxy Coumarins in the Dog,” Journal of the American Chemical Society, Vol. 76, No. 6, 1954, pp. 16501652. doi:10.1021/ja01635a055

has been cited by the following article:

• TITLE: Synthesis, Spectroscopic and Crystal Structure Studies on Ethyl 5,7-Dimethyl Coumarin-4-Acetate

  AUTHORS: Kiran K. Pujar, G. N. Anilkumar, Manohar V. Kulkarni

  KEYWORDS: Coumarin-4-Acetic acid Ethyl Ester; X-Ray Diffraction

  JOURNAL NAME: Crystal Structure Theory and Applications, Vol.2 No.2, June 24, 2013

  ABSTRACT: Ethyl ester of 5,7-dimethyl coumarin-4-acetic acid has been synthesized from 3,5-Xylenol in a two step sequence of reaction involving Pechmann cyclisation and acid catalyzed esterification. The title compound 2 crystallizes in Monoclinic form, space group P 1 21/c 1, with a = 8.6248(4) ?, b = 18.9103(8) , c = 8.4204(4)?, β = 101.241(2）?, V = 1347.00(11) ?, D cal = 1.283 Mg/cm3, Z = 4. The molecule is stabilized by intermolecular C-H … O bonds.