Stereochemistry of benzannelated 1,6-diazabicyclo[4.2.1]octadienes and the conformation of substituents on the methylene bridge
โ Scribed by E. Kleinpeter; J. Hartmann; B. Werner; W. Schroth
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 276 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0749-1581
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โฆ Synopsis
Abstract
The stereochemistry of benzannelated 1,6โdiazabicyclo[4.2.1]octaโ3,7โdienes (the conformation of the eightโmembered ring and of the variable substituents on the methylene bridge) was determined by means of NOE enhancements and stereospecific longโrange H,H coupling constants in the relevant NMR spectra.
๐ SIMILAR VOLUMES
## Abstract The stereochemistry the 2,4โdiโarene substituted 3,7โdiazabicyclo[3.3.1]nonanโ9โone 1,5โdicarboxylate skeleton was found to be regulated by the kind of substituents attached to the arene rings as well as to the nitrogens N3 and N7. Conformational isomers, __i.e.__, chair/chair, boat/cha