(E)-9-(4-Fluoro­styr­yl)-3,3,6,6-tetra­methyl-3,4,5,6,7,9-hexa­hydro-2H-xanthene-1,8-dione

نویسندگان

  • Jae Kyun Lee
  • Sun-Joon Min
  • Yong Seo Cho
  • Joo Hwan Cha
  • Sung Ok Won
چکیده

In the title compound, C25H27FO3, each of the cyclo-hexenone rings adopts a half-chair conformation, whereas the six-membered pyran ring adopts a flattened boat conformation, with the O and methine C atoms deviating by 0.0769 (15) and 0.196 (2) Å, respectively, from the plane of the other four atoms (r.m.s. deviation = 0.004 Å). The C=C double bond adopts an E conformation. The dihedral angle between the benzene and pyran (all atoms) rings is 89.94 (10)°. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into chains running parallel to the b axis.

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9-(4-Hy­droxy-3,5-dimeth­oxy­phen­yl)-3,3,6,6-tetra­methyl-3,4,5,6,7,9-hexa­hydro-1H-xanthene-1,8(2H)-dione

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عنوان ژورنال:

دوره 69  شماره 

صفحات  -

تاریخ انتشار 2013