Cis and trans 4,8-dimethyl-6-phenyl-5,6,7,8-tetra-hydro-4H-1,3,6-oxadiazocin-2-ones: Conformational studies and configurational assignments by NMR
✍ Scribed by Tomihiro Nishiyama; Toyokuni Fujiwara; Satoshi Miyazaki; Fukiko Yamada
- Book ID
- 112130472
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1992
- Tongue
- English
- Weight
- 335 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0022-152X
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## Abstract The stereochemistry of __trans__‐ and __cis__‐2, 4‐dimethyl‐tetrahydroquinolines, **6** and **7** were derived from ^1^H‐NMR. studies. These were converted respectively into __trans__‐ and __cis__‐5, 6‐dihydro‐4, 6‐dimethyl‐4__H__, 8__H__‐pyrido [3, 2, 1‐de]phenanthridin‐8‐ones **18** a
Single-crystal X-ray study T = 170 K Mean '(C±C) = 0.004 A Ê Disorder in main residue R factor = 0.047 wR factor = 0.139 Data-to-parameter ratio = 14.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.