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3,3,6,6-Tetra­methyl-9-(3,4-methyl­ene­dioxyl­phenyl)-1,2,3,4,5,6,7,8,9,10-deca­hydro­acridine-1,8-dione

✍ Scribed by Li, Yuling ;Wang, Xiangshan ;Shi, Daqing ;Du, Baixiang ;Tu, Shujiang

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
159 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

The crystal structure of the title compound, C 24 H 27 NO 4 , reveals that there are two roughly identical molecules in the asymmetric unit. In both acridine moieties, the central pyridine rings are slightly distorted and adopt a boat conformation, whereas the two outer six-membered rings display half-chair conformations. Each molecule is linked through NÐHÁ Á ÁO hydrogen bonds to symmetry-related molecules, forming in®nite chains.

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9-(4-Hydroxy-3-methyoxy­phenyl)-3,3,6,6,
9-(4-Hydroxy-3-methyoxy­phenyl)-3,3,6,6,10-penta­methyl-1,2,3,4,5,6,7,8,9,10-deca­hydro­acridine-1,8-dione
✍ Tu, Shu-Jiang ;Zhang, Xiao-Jing ;Zhu, Song-Lei 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 164 KB

Single-crystal X-ray study T = 295 K Mean '(C±C) = 0.003 A Ê R factor = 0.042 wR factor = 0.108 Data-to-parameter ratio = 14.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

5-Hydr­oxy-3,3,6,6-tetra­methyl-9-propyl
5-Hydr­oxy-3,3,6,6-tetra­methyl-9-propyl-1,2,3,4,5,6,7,8,9,10-deca­hydro­acridine-1,8-dione monohydrate
✍ Zou, Xiang ;Tu, Shu-Jiang ;Fang, Fang ;Zhang, Yan 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 209 KB

The title compound, C 20 H 29 NO 3 ÁH 2 O, has been synthesized by the reaction of hydroxylamine with butyraldehyde and dimidone in ethylene glycol under microwave irradiation. The dihydropyridine ring adopts a boat conformation.