Single-crystal X-ray study T = 292 K Mean '(C±C) = 0.002 A Ê R factor = 0.030 wR factor = 0.095 Data-to-parameter ratio = 14.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
Ethyl 5,5′′-dimethyl-2,2′;6′,2′′-terpyridine-4′-carboxylate
✍ Scribed by Kickelbick, Guido ;Hoogenboom, Richard ;Schubert, Ulrich S.
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 296 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
✦ Synopsis
The title compound, C 20 H 19 N 3 O 2 , was synthesized by Stille coupling of ethyl 2,6-dibromoisonicotinate and 2-trimethylstannyl-5-methylpyridine. The three pyridine rings in the molecule are coplanar and the crystal packing revealsstacking interactions between these conjugated aromatic rings with a distance between the mean planes of 3.494 A ˚.
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The crystal structure of ethyl 2-aminooxazole-5-carboxylate, C 6 H 8 N 2 O 3 , consists of planar sheets internally connected by intermolecular hydrogen bonding running parallel to the (120) plane. Interactions between the sheets are limited to dipole± dipole interactions between antiparallel carbon
The title compound, C 26 H 25 NO 3 , was synthesized by the 1,3dipolar cycloaddition reaction of benzaldehyde, -bromoacetophenone and N-benzylideneglycine ethyl ester. In the molecule, the heterocyclic five-membered ring adopts an envelope conformation.