NMR assignments of a di-pentacyclo-undecane cyclic ether.
The X-ray structure of a di-pentacyclo-undecane cyclic ether was recently reported. As part of a programme to use NMR spectroscopy for the structure elucidation of cage compounds, the complete NMR assignments of the cyclic ether was attempted. Major overlap of proton and carbon signals of the two cages is observed. It was required to elucidate the fragment analogues that represent similar structural features of the cyclic ether in order to get an approximate but reasonable insight into the complex overlapping signals. Normal 2D NMR techniques were utilized to assign the various NMR signals.
Kruger
Hendrik G
HG
School of Chemistry, University of KwaZulu-Natal, Durban 4041, South Africa. kruger@ukzn.ac.za
Ramdhani
Reshika
R