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(E)-3,3,6,6-Tetra-methyl-9-(2-nitro-styr-yl)-3,4,5,6,7,9-hexa-hydro-1H-xanthene-1,8(2H)-dione.

ABSTRACT: In the title compound, C(25)H(27)NO(5), 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 from the plane of the other four atoms. In the crystal, weak C-H?O hydrogen bonds link mol-ecules into chains parallel to the c axis.

SUBMITTER: Lee JK

PROVIDER: S-EPMC3379499 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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(E)-3,3,6,6-Tetra-methyl-9-(2-nitro-styr-yl)-3,4,5,6,7,9-hexa-hydro-1H-xanthene-1,8(2H)-dione.

Lee Jae Kyun JK Min Sun-Joon SJ Cho Yong Seo YS Lee Ki Soo KS Cha Joo Hwan JH

Acta crystallographica. Section E, Structure reports online 20120531 Pt 6

In the title compound, C(25)H(27)NO(5), 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 from the plane of the other four atoms. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules into chains parallel to the c axis. ...[more]

PMID: 22719697

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