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1-Acetyl-2a,8b-dichloro-1-meth­oxy-1,2,2a,8b-tetra­hydro-3H-cyclo­buta[c]chromen-3-one

✍ Scribed by Lu, Zhi-Feng ;An, Hui-Ying ;Wang, Wen-Jie ;Lu, Shan ;Xu, Jian-Hua

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
120 KB
Volume
62
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

2a′-Chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra
2a′-Chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra­hydro­di­spiro­[cyclo­propane-1,1′-cyclo­buta­[b]­napthalene-2′,1′′-cyclo­propane]
✍ Wang, Lei ;Usman, Anwar ;Fun, Hoong-Kun ;Zhang, Yan ;Xu, Jian-Hua 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 184 KB

In the title compound, C 16 H 13 ClO 2 , the tetrahydrobenzene ring adopts a boat conformation, and both cyclopropyl groups are orthogonal to the cyclobutane ring. The Cl atom shows positional disorder.

2a′,8a′-Di­chloro-3,8-dioxo-1′,2′,2a′,8a
2a′,8a′-Di­chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra­hydro­di­spiro­[cyclo­propane-1,1′-cyclo­buta­[b]­naphthalene-2′,1′′-cyclo­propane]
✍ Usman, Anwar ;Fun, Hoong-Kun ;Wang, Lei ;Zhang, Yan ;Xu, Jian-Hua 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 256 KB

Single-crystal X-ray study T = 213 K Mean '(C±C) = 0.003 A Ê R factor = 0.078 wR factor = 0.199 Data-to-parameter ratio = 15.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

7-Nitro-2,3-di­hydro-1H-cyclo­penta­[b]­
7-Nitro-2,3-di­hydro-1H-cyclo­penta­[b]­chromen-1-one
✍ Huo, Fang-Jun ;Yin, Cai-Xia ;Yang, Pin 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 271 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê Disorder in main residue R factor = 0.052 wR factor = 0.125 Data-to-parameter ratio = 10.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.