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Theoretical and spectroscopic studies on the conformational equilibrium of 9-oxabispidines in solution

✍ Scribed by Matthias Breuning; Alexander Paasche; Melanie Steiner; Stefan Dilsky; Viktoria H. Gessner; Carsten Strohmann; Bernd Engels


Book ID
113806100
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
992 KB
Volume
1005
Category
Article
ISSN
0022-2860

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The conformational equilibrium of [2.2]p
✍ Ernst, Ludger πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 506 KB

## Abstract A conformational equilibrium exists in solution between two skew forms (__s__^+^ and __s__^βˆ’^) of [2.2]paracyclophane (1a). The vicinal coupling constants in the ^1^H‐NMR spectra of the bridge protons in the six __ar__‐monosubstituted derivatives 1b–1g (Rο£ΎCN, NO, Br, CH~3~, CHO, and NO~