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()-anti-7-Ethyl-1-(4-methoxy­phenyl)-5,5,syn-8-tri­methyl-2-oxabi­cyclo­[2.2.2]­octan-3-one, a bicyclic δ-lactone

✍ Scribed by Xie, Songwen ;Hou, Yuqing ;Meyers, Cal Y. ;Robinson, Paul D.

Book ID
104480171
Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
251 KB
Volume
59
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

()-5-Ethyl-endo-4-(4-methoxy­phenyl)-2,2
()-5-Ethyl-endo-4-(4-methoxy­phenyl)-2,2,anti-8-tri­methyl-6-oxabi­cyclo­[3.2.1]­octan-7-one, a bicyclic γ-lactone
✍ Xie, Songwen ;Hou, Yuqing ;Meyers, Cal Y. ;Robinson, Paul D. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 209 KB

Compound (II) was prepared by the procedure described for (I) (Xie et al., 2003), except that the brown pasty solid obtained after the addition of 3N HCl was left untouched for several days before being

4-[(4-Methyl­phenyl)­diazenyl]-6-methoxy
4-[(4-Methyl­phenyl)­diazenyl]-6-methoxy-2-{[tris­(hydroxy­methyl)­methyl]­amino­methyl­ene}cyclo­hexa-3,5-dien-1(2H)-one
✍ Koşar, Başak ;Albayrak, Çiğdem ;Odabaşoğlu, Mustafa ;Büyükgüngör, Orhan 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 183 KB

The title compound, C 19 H 23 N 3 O 5 , adopts the keto±amine tautomeric form and the con®guration around the ÐN NÐ double bond is trans. There is an intramolecular NÐHÁ Á ÁO hydrogen bond and intermolecular OÐHÁ Á ÁO interactions, forming a three-dimensional network.

4-[(3-Chloro­phenyl)­diazenyl]-6-methoxy
4-[(3-Chloro­phenyl)­diazenyl]-6-methoxy-2-{[tris­(hydroxy­methyl)­methyl]­aminomethyl­ene}cyclo­hexa-3,5-dien-1(2H)-one
✍ Koşar, Başak ;Albayrak, Çigˇdem ;Odabaşoğlu, Mustafa ;Büyükgüngör, Orhan 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 220 KB

Single-crystal X-ray study T = 291 K Mean '(C±C) = 0.003 A Ê R factor = 0.043 wR factor = 0.116 Data-to-parameter ratio = 11.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

8-(4-Methoxy­phenyl)-3,5-bis­[(E)-1-(4-m
8-(4-Methoxy­phenyl)-3,5-bis­[(E)-1-(4-methoxy­phenyl)­methyl­idene]-1,2,3,5,6,7-hexa­hydro­di­cyclo­penta­[b,e]­pyridine
✍ Crane, Jonathan D. ;Crompton, John 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 302 KB

At 150 K, the tricyclic core of the title compound, C 34 H 31 NO 3 , is close to planar. One of the three 4-methoxyphenyl substituents is twisted out of the plane of the tricyclic core due to steric congestion.