## Abstract Seven of the possible diastereoisomeric perhydronaphthaleno[3,4‐__e__]pyrido[1,2‐__c__][1,3]oxazines have been synthesized and the configurations and preferred conformations of these assigned on the basis of IR and ^1^H NMR spectroscopy and the application of conformational principles.
Compounds with bridgehead nitrogen 53—13C NMR spectra and stereochemistry of perhydronaphthaleno[2,1-e]pyrido[1,2-c][1,3]oxazines
✍ Scribed by Trevor A. Crabb; Olive G. Roch; Brian Wood
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 337 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The configurations and preferred conformations of some diastereoisomeric perhydronaphthaleno[2,1-elpyrido[ 1,2c][ 1,310xazines have been assigned by "C NMR spectroscopy. These results require reversal of two previous tentative configurational assignments based on 'H NMR spectroscopy, and also indicate the presence of non-chair conformations for cis-anti-cis-syn-cis-and trans-syn-cis-syn-ci-perhydronaphthaleno[2,l-e]pyrido[ 1,2-c][ 1,3]oxazine.
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