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Thermally Equilibrated Two Conformers of 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene Spiro-linked Homobenzoquinone Epoxide
http://hdl.handle.net/10173/1360
http://hdl.handle.net/10173/1360fd58ef35-784d-4f4d-8893-5d47b39dd98b
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27-38.pdf (247.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-03-25 | |||||
タイトル | ||||||
タイトル | Thermally Equilibrated Two Conformers of 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene Spiro-linked Homobenzoquinone Epoxide | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
ASAHARA, HARUYASU
× ASAHARA, HARUYASU× KOIZUMI, TAKUYA× MOCHIZUKI, EIKO× OSHIMA, TAKUMI |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The crystal structures of the thermally equilibrated two conformational isomers of the title epoxide, spiro[10,11-dihydro-5H-dibenzo[a,d]cycloheptene-5,8’-1’,5’-dimethyl-4’-oxa-tricyclo[5.1.0.0<^3’,5’>]octane-2’,6’-dione] (C_23H_<20>O_3), have been determined by X-ray diffraction. The tricyclicdione skeleton takes the anti-structure of oxirane and cyclopropane rings with respect to the conjunct quinone frame. The major isomer (IIb) has a fairly twisted boat form of the spiro-linked 10,11-dihydro-5H-dibenzo[a,d]cycloheptene ring folding opposite to the adjoining cyclopropane CH_3-substituent, whereas the minor isomer (IIa) has almost ideal twist-boat form of the seven-membered ring inversely folding to the side of relevant CH_3 group. The conformational structures of these isomers have been compared with those of the corresponding isomers of unepoxidized homobenzoquinone. | |||||
書誌情報 |
Acta Crystallographica Section C 巻 C62, 号 Part. 3, p. o136-o138, 発行日 2006 |
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DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1107/S0108270106002800 | |||||
権利 | ||||||
権利情報 | International Union of Crystallographers, H. Asahara, T. Koizumi, E. Mochizuki and T. Oshima, Acta Crystallographica Section C, C62(Part. 3), 2006, p.o136-138 | |||||
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出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | International Union of Crystallographers |