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Unprecedented example of a 3J(13C,11B) through a CCNB linkage

✍ Scribed by Jean Atchekzaï; Bernard Bonnetot; Jean-Claude Duplan; Bernard Fenet; Bernard Ferage; Henri Mongeot


Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
140 KB
Volume
27
Category
Article
ISSN
0749-1581

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Compounds with bridgehead nitrogen. Part
✍ Trevor A. Crabb; Simon T. Ingate; Thomas G. Nevell; Steven Sumner 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 273 KB

## Abstract The positions of conformational equilibria in the four diastereoisomers of 8,9,11,11a,11b,12,13‐octahydro‐7a__H__‐quino [1,2‐__c__] [1,3] benzoxazines were investigated using ^13^C and ^1^H NMR spectroscopy. Comparison of the NMR chemical shifts of these isomers with those in the corres