2,4‐Dioxabicyclo‐[3.3.1]‐Nonane. A Distorted Chair form Having a Non‐Classical Long Range Coupling VII. Long Range Phenomena [1]
- 1 January 1969
- journal article
- research article
- Published by Wiley in Bulletin des Sociétés Chimiques Belges
- Vol. 78 (9-10) , 471-478
- https://doi.org/10.1002/bscb.19690780905
Abstract
The P. M.R. spectrum of the title compound (I) could be unraveled by multiple irradiation. The protons i, e (I) are involved in a long range coupling (4J(e, i) = 2.2 c.p.s.), which does not follow a planar zigzag path, even in the distorted chair. Arguments are advanced, proving that the two cycles exist in flattened chair conformations.Keywords
This publication has 10 references indexed in Scilit:
- Geminal coupling constants in methylene groups α to nitrogen and oxygen atoms in 5- and 6-membered ring compoundsTetrahedron, 1968
- Long Range Phenomena VII [1] Atypical Long Range Paths in 1,3‐Thioxanes and 1,3‐DithianesBulletin des Sociétés Chimiques Belges, 1968
- Long Range Phenomena. IV (1): The PMR‐spectra of 2‐halo‐3, 3, 5, 5‐tetramethyl‐cyclohexanone. Long range couplings not following “M” patternsBulletin des Sociétés Chimiques Belges, 1967
- Proton magnetic resonance studies of citral a and bJournal of the Chemical Society B: Physical Organic, 1967
- The influence of spatial orientation of free orbitals in pmr spectroscopy influence of vicinal orbitals on3J and2JBulletin des Sociétés Chimiques Belges, 1966
- NMR experiments on ketals VI. PMR spectra of alkyl substituted 1, 3‐dioxanes with rigid or anancomeric structuresBulletin des Sociétés Chimiques Belges, 1966
- Nuclear Magnetic Resonance Spectral Assignments from Nuclear Overhauser Effects1Journal of the American Chemical Society, 1965
- The Effects of Steric Compression on Chemical Shifts in Half-Cage and Related Molecules1,2Journal of the American Chemical Society, 1965
- Reaction of cyclohexane-cis- and -trans-1,2-diol with methylene halidesChemical Communications (London), 1965
- Sterically Increased C-H Stretching Frequencies in Fused Bicycloheptane and Half-cage Structures1,2Journal of the American Chemical Society, 1961