3-Methoxy-19-norpentara-1,3,5(10),17(20)-tetraen-21-one

Masataka Watanabe; Taisuke Matsumoto; Shuntaro Mataka; Thies Thiemann

doi:10.1107/S160053680403363X

3-Methoxy-19-norpentara-1,3,5(10),17(20)-tetraen-21-one

Masataka Watanabe, Taisuke Matsumoto, Shuntaro Mataka, Thies Thiemann

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In the title compound, alternatively called 3′-oxocyclohex-1′-eno-1′,6′:16,17-3-O-methylestra-1,3, 5(10),16(16H)-tetraen-3-ol, C₂₃H₂₈O₂, the cyclohexenone ring is fused to the five-membered ring through the a position at C16. As a result of the ring annelation, the distance between carbonyl and methoxy O atoms [12.994 (2) Å] is much longer than that in estrones or estradiol. The crystal packing is stabilized by C-H⋯O and C-H⋯π hydrogen-bonding interactions.

Original language	English
Pages (from-to)	o169-o171
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	61
Issue number	1
DOIs	https://doi.org/10.1107/S160053680403363X
Publication status	Published - Jan 2005
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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title = "3-Methoxy-19-norpentara-1,3,5(10),17(20)-tetraen-21-one",

abstract = "In the title compound, alternatively called 3′-oxocyclohex-1′-eno-1′,6′:16,17-3-O-methylestra-1,3, 5(10),16(16H)-tetraen-3-ol, C23H28O2, the cyclohexenone ring is fused to the five-membered ring through the a position at C16. As a result of the ring annelation, the distance between carbonyl and methoxy O atoms [12.994 (2) {\AA}] is much longer than that in estrones or estradiol. The crystal packing is stabilized by C-H⋯O and C-H⋯π hydrogen-bonding interactions.",

author = "Masataka Watanabe and Taisuke Matsumoto and Shuntaro Mataka and Thies Thiemann",

year = "2005",

month = jan,

doi = "10.1107/S160053680403363X",

language = "English",

volume = "61",

pages = "o169--o171",

journal = "Acta Crystallographica Section E: Structure Reports Online",

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publisher = "International Union of Crystallography",

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T1 - 3-Methoxy-19-norpentara-1,3,5(10),17(20)-tetraen-21-one

AU - Watanabe, Masataka

AU - Matsumoto, Taisuke

AU - Mataka, Shuntaro

AU - Thiemann, Thies

PY - 2005/1

Y1 - 2005/1

N2 - In the title compound, alternatively called 3′-oxocyclohex-1′-eno-1′,6′:16,17-3-O-methylestra-1,3, 5(10),16(16H)-tetraen-3-ol, C23H28O2, the cyclohexenone ring is fused to the five-membered ring through the a position at C16. As a result of the ring annelation, the distance between carbonyl and methoxy O atoms [12.994 (2) Å] is much longer than that in estrones or estradiol. The crystal packing is stabilized by C-H⋯O and C-H⋯π hydrogen-bonding interactions.

AB - In the title compound, alternatively called 3′-oxocyclohex-1′-eno-1′,6′:16,17-3-O-methylestra-1,3, 5(10),16(16H)-tetraen-3-ol, C23H28O2, the cyclohexenone ring is fused to the five-membered ring through the a position at C16. As a result of the ring annelation, the distance between carbonyl and methoxy O atoms [12.994 (2) Å] is much longer than that in estrones or estradiol. The crystal packing is stabilized by C-H⋯O and C-H⋯π hydrogen-bonding interactions.

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3-Methoxy-19-norpentara-1,3,5(10),17(20)-tetraen-21-one

Abstract

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